#![cfg(not(tarpaulin_include))]
use evalexpr::{error::*, *};
use std::convert::TryFrom;
#[test]
fn test_unary_examples() {
assert_eq!(eval("3"), Ok(Value::Int(3)));
assert_eq!(eval("3.3"), Ok(Value::Float(3.3)));
assert_eq!(eval("true"), Ok(Value::Boolean(true)));
assert_eq!(eval("false"), Ok(Value::Boolean(false)));
assert_eq!(
eval("blub"),
Err(EvalexprError::VariableIdentifierNotFound(
"blub".to_string()
))
);
assert_eq!(eval("-3"), Ok(Value::Int(-3)));
assert_eq!(eval("-3.6"), Ok(Value::Float(-3.6)));
assert_eq!(eval("----3"), Ok(Value::Int(3)));
assert_eq!(eval("1e0"), Ok(Value::Float(1.0)));
assert_eq!(eval("1e-0"), Ok(Value::Float(1.0)));
assert_eq!(eval("10e3"), Ok(Value::Float(10000.0)));
assert_eq!(eval("10e+3"), Ok(Value::Float(10000.0)));
assert_eq!(eval("10e-3"), Ok(Value::Float(0.01)));
}
#[test]
fn test_binary_examples() {
assert_eq!(eval("1+3"), Ok(Value::Int(4)));
assert_eq!(eval("3+1"), Ok(Value::Int(4)));
assert_eq!(eval("3-5"), Ok(Value::Int(-2)));
assert_eq!(eval("5-3"), Ok(Value::Int(2)));
assert_eq!(eval("5 / 4"), Ok(Value::Int(1)));
assert_eq!(eval("5 *3"), Ok(Value::Int(15)));
assert_eq!(eval("1.0+3"), Ok(Value::Float(4.0)));
assert_eq!(eval("3.0+1"), Ok(Value::Float(4.0)));
assert_eq!(eval("3-5.0"), Ok(Value::Float(-2.0)));
assert_eq!(eval("5-3.0"), Ok(Value::Float(2.0)));
assert_eq!(eval("5 / 4.0"), Ok(Value::Float(1.25)));
assert_eq!(eval("5.0 *3"), Ok(Value::Float(15.0)));
assert_eq!(eval("5.0 *-3"), Ok(Value::Float(-15.0)));
assert_eq!(eval("5.0 *- 3"), Ok(Value::Float(-15.0)));
assert_eq!(eval("5.0 * -3"), Ok(Value::Float(-15.0)));
assert_eq!(eval("5.0 * - 3"), Ok(Value::Float(-15.0)));
assert_eq!(eval("-5.0 *-3"), Ok(Value::Float(15.0)));
assert_eq!(eval("3+-1"), Ok(Value::Int(2)));
assert_eq!(eval("-3-5"), Ok(Value::Int(-8)));
assert_eq!(eval("-5--3"), Ok(Value::Int(-2)));
assert_eq!(eval("5e2--3"), Ok(Value::Float(503.0)));
assert_eq!(eval("-5e-2--3"), Ok(Value::Float(2.95)));
}
#[test]
fn test_arithmetic_precedence_examples() {
assert_eq!(eval("1+3-2"), Ok(Value::Int(2)));
assert_eq!(eval("3+1*5"), Ok(Value::Int(8)));
assert_eq!(eval("2*3-5"), Ok(Value::Int(1)));
assert_eq!(eval("5-3/3"), Ok(Value::Int(4)));
assert_eq!(eval("5 / 4*2"), Ok(Value::Int(2)));
assert_eq!(eval("1-5 *3/15"), Ok(Value::Int(0)));
assert_eq!(eval("15/7/2.0"), Ok(Value::Float(1.0)));
assert_eq!(eval("15.0/7/2"), Ok(Value::Float(15.0 / 7.0 / 2.0)));
assert_eq!(eval("15.0/-7/2"), Ok(Value::Float(15.0 / -7.0 / 2.0)));
assert_eq!(eval("-15.0/7/2"), Ok(Value::Float(-15.0 / 7.0 / 2.0)));
assert_eq!(eval("-15.0/7/-2"), Ok(Value::Float(-15.0 / 7.0 / -2.0)));
}
#[test]
fn test_braced_examples() {
assert_eq!(eval("(1)"), Ok(Value::Int(1)));
assert_eq!(eval("( 1.0 )"), Ok(Value::Float(1.0)));
assert_eq!(eval("( true)"), Ok(Value::Boolean(true)));
assert_eq!(eval("( -1 )"), Ok(Value::Int(-1)));
assert_eq!(eval("-(1)"), Ok(Value::Int(-1)));
assert_eq!(eval("-(1 + 3) * 7"), Ok(Value::Int(-28)));
assert_eq!(eval("(1 * 1) - 3"), Ok(Value::Int(-2)));
assert_eq!(eval("4 / (2 * 2)"), Ok(Value::Int(1)));
assert_eq!(eval("7/(7/(7/(7/(7/(7)))))"), Ok(Value::Int(1)));
}
#[test]
fn test_mod_examples() {
assert_eq!(eval("1 % 4"), Ok(Value::Int(1)));
assert_eq!(eval("6 % 4"), Ok(Value::Int(2)));
assert_eq!(eval("1 % 4 + 2"), Ok(Value::Int(3)));
}
#[test]
fn test_pow_examples() {
assert_eq!(eval("1 ^ 4"), Ok(Value::Float(1.0)));
assert_eq!(eval("6 ^ 4"), Ok(Value::Float(6.0f64.powf(4.0))));
assert_eq!(eval("1 ^ 4 + 2"), Ok(Value::Float(3.0)));
assert_eq!(eval("2 ^ (4 + 2)"), Ok(Value::Float(64.0)));
}
#[test]
fn test_boolean_examples() {
assert_eq!(eval("true && false"), Ok(Value::Boolean(false)));
assert_eq!(
eval("true && false || true && true"),
Ok(Value::Boolean(true))
);
assert_eq!(eval("5 > 4 && 1 <= 1"), Ok(Value::Boolean(true)));
assert_eq!(eval("5.0 <= 4.9 || !(4 > 3.5)"), Ok(Value::Boolean(false)));
}
#[test]
fn test_with_context() {
let mut context = HashMapContext::new();
context
.set_value("tr".into(), Value::Boolean(true))
.unwrap();
context
.set_value("fa".into(), Value::Boolean(false))
.unwrap();
context.set_value("five".into(), Value::Int(5)).unwrap();
context.set_value("six".into(), Value::Int(6)).unwrap();
context.set_value("half".into(), Value::Float(0.5)).unwrap();
context.set_value("zero".into(), Value::Int(0)).unwrap();
assert_eq!(eval_with_context("tr", &context), Ok(Value::Boolean(true)));
assert_eq!(eval_with_context("fa", &context), Ok(Value::Boolean(false)));
assert_eq!(
eval_with_context("tr && false", &context),
Ok(Value::Boolean(false))
);
assert_eq!(
eval_with_context("five + six", &context),
Ok(Value::Int(11))
);
assert_eq!(
eval_with_context("five * half", &context),
Ok(Value::Float(2.5))
);
assert_eq!(
eval_with_context("five < six && true", &context),
Ok(Value::Boolean(true))
);
}
#[test]
fn test_functions() {
let mut context = HashMapContext::new();
context
.set_function(
"sub2".to_string(),
Function::new(|argument| {
if let Value::Int(int) = argument {
Ok(Value::Int(int - 2))
} else if let Value::Float(float) = argument {
Ok(Value::Float(float - 2.0))
} else {
Err(EvalexprError::expected_number(argument.clone()))
}
}),
)
.unwrap();
context
.set_value("five".to_string(), Value::Int(5))
.unwrap();
assert_eq!(eval_with_context("sub2 5", &context), Ok(Value::Int(3)));
assert_eq!(eval_with_context("sub2(5)", &context), Ok(Value::Int(3)));
assert_eq!(eval_with_context("sub2 five", &context), Ok(Value::Int(3)));
assert_eq!(eval_with_context("sub2(five)", &context), Ok(Value::Int(3)));
assert_eq!(
eval_with_context("sub2(3) + five", &context),
Ok(Value::Int(6))
);
}
#[test]
fn test_n_ary_functions() {
let mut context = HashMapContext::new();
context
.set_function(
"sub2".into(),
Function::new(|argument| {
if let Value::Int(int) = argument {
Ok(Value::Int(int - 2))
} else if let Value::Float(float) = argument {
Ok(Value::Float(float - 2.0))
} else {
Err(EvalexprError::expected_number(argument.clone()))
}
}),
)
.unwrap();
context
.set_function(
"avg".into(),
Function::new(|argument| {
let arguments = argument.as_tuple()?;
arguments[0].as_number()?;
arguments[1].as_number()?;
if let (Value::Int(a), Value::Int(b)) = (&arguments[0], &arguments[1]) {
Ok(Value::Int((a + b) / 2))
} else {
Ok(Value::Float(
(arguments[0].as_float()? + arguments[1].as_float()?) / 2.0,
))
}
}),
)
.unwrap();
context
.set_function(
"muladd".into(),
Function::new(|argument| {
let arguments = argument.as_tuple()?;
arguments[0].as_number()?;
arguments[1].as_number()?;
arguments[2].as_number()?;
if let (Value::Int(a), Value::Int(b), Value::Int(c)) =
(&arguments[0], &arguments[1], &arguments[2])
{
Ok(Value::Int(a * b + c))
} else {
Ok(Value::Float(
arguments[0].as_float()? * arguments[1].as_float()?
+ arguments[2].as_float()?,
))
}
}),
)
.unwrap();
context
.set_function(
"count".into(),
Function::new(|arguments| match arguments {
Value::Tuple(tuple) => Ok(Value::from(tuple.len() as IntType)),
Value::Empty => Ok(Value::from(0)),
_ => Ok(Value::from(1)),
}),
)
.unwrap();
context
.set_value("five".to_string(), Value::Int(5))
.unwrap();
context
.set_function("function_four".into(), Function::new(|_| Ok(Value::Int(4))))
.unwrap();
assert_eq!(eval_with_context("avg(7, 5)", &context), Ok(Value::Int(6)));
assert_eq!(
eval_with_context("avg(sub2 5, 5)", &context),
Ok(Value::Int(4))
);
assert_eq!(
eval_with_context("sub2(avg(3, 6))", &context),
Ok(Value::Int(2))
);
assert_eq!(
eval_with_context("sub2 avg(3, 6)", &context),
Ok(Value::Int(2))
);
assert_eq!(
eval_with_context("muladd(3, 6, -4)", &context),
Ok(Value::Int(14))
);
assert_eq!(eval_with_context("count()", &context), Ok(Value::Int(0)));
assert_eq!(
eval_with_context("count((1, 2, 3))", &context),
Ok(Value::Int(3))
);
assert_eq!(
eval_with_context("count(3, 5.5, 2)", &context),
Ok(Value::Int(3))
);
assert_eq!(eval_with_context("count 5", &context), Ok(Value::Int(1)));
assert_eq!(
eval_with_context("function_four()", &context),
Ok(Value::Int(4))
);
}
#[test]
fn test_capturing_functions() {
let mut context = HashMapContext::new();
let three = 3;
context
.set_function(
"mult_3".into(),
Function::new(move |argument| {
if let Value::Int(int) = argument {
Ok(Value::Int(int * three))
} else if let Value::Float(float) = argument {
Ok(Value::Float(float * three as f64))
} else {
Err(EvalexprError::expected_number(argument.clone()))
}
}),
)
.unwrap();
let four = 4;
context
.set_function(
"function_four".into(),
Function::new(move |_| Ok(Value::Int(four))),
)
.unwrap();
assert_eq!(eval_with_context("mult_3 2", &context), Ok(Value::Int(6)));
assert_eq!(eval_with_context("mult_3(3)", &context), Ok(Value::Int(9)));
assert_eq!(
eval_with_context("mult_3(function_four())", &context),
Ok(Value::Int(12))
);
}
#[test]
fn test_builtin_functions() {
assert_eq!(eval("math::ln(2.718281828459045)"), Ok(Value::Float(1.0)));
assert_eq!(eval("math::log(9, 9)"), Ok(Value::Float(1.0)));
assert_eq!(eval("math::log2(2)"), Ok(Value::Float(1.0)));
assert_eq!(eval("math::log10(10)"), Ok(Value::Float(1.0)));
assert_eq!(eval("math::exp(2)"), Ok(Value::Float(2.0_f64.exp())));
assert_eq!(eval("math::exp2(2)"), Ok(Value::Float(2.0_f64.exp2())));
assert_eq!(
eval("math::pow(1.5, 1.3)"),
Ok(Value::Float(1.5_f64.powf(1.3)))
);
assert_eq!(eval("math::cos(0)"), Ok(Value::Float(1.0)));
assert_eq!(eval("math::acos(1)"), Ok(Value::Float(0.0)));
assert_eq!(eval("math::cosh(0)"), Ok(Value::Float(1.0)));
assert_eq!(eval("math::acosh(1)"), Ok(Value::Float(0.0)));
assert_eq!(eval("math::sin(0)"), Ok(Value::Float(0.0)));
assert_eq!(eval("math::asin(0)"), Ok(Value::Float(0.0)));
assert_eq!(eval("math::sinh(0)"), Ok(Value::Float(0.0)));
assert_eq!(eval("math::asinh(0)"), Ok(Value::Float(0.0)));
assert_eq!(eval("math::tan(0)"), Ok(Value::Float(0.0)));
assert_eq!(eval("math::atan(0)"), Ok(Value::Float(0.0)));
assert_eq!(eval("math::tanh(0)"), Ok(Value::Float(0.0)));
assert_eq!(eval("math::atanh(0)"), Ok(Value::Float(0.0)));
assert_eq!(
eval("math::atan2(1.2, -5.5)"),
Ok(Value::Float(1.2_f64.atan2(-5.5)))
);
assert_eq!(eval("math::sqrt(25)"), Ok(Value::Float(5.0)));
assert_eq!(eval("math::cbrt(8)"), Ok(Value::Float(2.0)));
assert_eq!(
eval("math::hypot(8.2, 1.1)"),
Ok(Value::Float(8.2_f64.hypot(1.1)))
);
assert_eq!(eval("floor(1.1)"), Ok(Value::Float(1.0)));
assert_eq!(eval("floor(1.9)"), Ok(Value::Float(1.0)));
assert_eq!(eval("round(1.1)"), Ok(Value::Float(1.0)));
assert_eq!(eval("round(1.5)"), Ok(Value::Float(2.0)));
assert_eq!(eval("round(2.5)"), Ok(Value::Float(3.0)));
assert_eq!(eval("round(1.9)"), Ok(Value::Float(2.0)));
assert_eq!(eval("ceil(1.1)"), Ok(Value::Float(2.0)));
assert_eq!(eval("ceil(1.9)"), Ok(Value::Float(2.0)));
assert_eq!(eval("math::is_nan(1.0/0.0)"), Ok(Value::Boolean(false)));
assert_eq!(eval("math::is_nan(0.0/0.0)"), Ok(Value::Boolean(true)));
assert_eq!(eval("math::is_finite(1.0/0.0)"), Ok(Value::Boolean(false)));
assert_eq!(eval("math::is_finite(0.0/0.0)"), Ok(Value::Boolean(false)));
assert_eq!(eval("math::is_finite(0.0)"), Ok(Value::Boolean(true)));
assert_eq!(
eval("math::is_infinite(0.0/0.0)"),
Ok(Value::Boolean(false))
);
assert_eq!(eval("math::is_infinite(1.0/0.0)"), Ok(Value::Boolean(true)));
assert_eq!(eval("math::is_normal(1.0/0.0)"), Ok(Value::Boolean(false)));
assert_eq!(eval("math::is_normal(0)"), Ok(Value::Boolean(false)));
assert_eq!(eval("typeof(4.0, 3)"), Ok(Value::String("tuple".into())));
assert_eq!(eval("typeof(4.0)"), Ok(Value::String("float".into())));
assert_eq!(eval("typeof(4)"), Ok(Value::String("int".into())));
assert_eq!(eval("typeof(\"\")"), Ok(Value::String("string".into())));
assert_eq!(eval("typeof(true)"), Ok(Value::String("boolean".into())));
assert_eq!(eval("typeof()"), Ok(Value::String("empty".into())));
assert_eq!(eval("min(4.0, 3)"), Ok(Value::Int(3)));
assert_eq!(eval("max(4.0, 3)"), Ok(Value::Float(4.0)));
assert_eq!(eval("len(\"foobar\")"), Ok(Value::Int(6)));
assert_eq!(eval("len(\"a\", \"b\")"), Ok(Value::Int(2)));
assert_eq!(
eval("str::to_lowercase(\"FOOBAR\")"),
Ok(Value::from("foobar"))
);
assert_eq!(
eval("str::to_uppercase(\"foobar\")"),
Ok(Value::from("FOOBAR"))
);
assert_eq!(
eval("str::trim(\" foo bar \")"),
Ok(Value::from("foo bar"))
);
assert_eq!(
eval("str::from(\"a\")"),
Ok(Value::String(String::from("\"a\"")))
);
assert_eq!(eval("str::from(1.0)"), Ok(Value::String(String::from("1"))));
assert_eq!(eval("str::from(1)"), Ok(Value::String(String::from("1"))));
assert_eq!(
eval("str::from(true)"),
Ok(Value::String(String::from("true")))
);
assert_eq!(
eval("str::from(1, 2, 3)"),
Ok(Value::String(String::from("(1, 2, 3)")))
);
assert_eq!(eval("str::from()"), Ok(Value::String(String::from("()"))));
assert_eq!(eval("bitand(5, -1)"), Ok(Value::Int(5)));
assert_eq!(eval("bitand(6, 5)"), Ok(Value::Int(4)));
assert_eq!(eval("bitor(5, -1)"), Ok(Value::Int(-1)));
assert_eq!(eval("bitor(6, 5)"), Ok(Value::Int(7)));
assert_eq!(eval("bitxor(5, -1)"), Ok(Value::Int(-6)));
assert_eq!(eval("bitxor(6, 5)"), Ok(Value::Int(3)));
assert_eq!(eval("bitnot(5)"), Ok(Value::Int(-6)));
assert_eq!(eval("bitnot(-1)"), Ok(Value::Int(0)));
assert_eq!(eval("shl(5, 1)"), Ok(Value::Int(10)));
assert_eq!(eval("shl(-6, 5)"), Ok(Value::Int(-192)));
assert_eq!(eval("shr(5, 1)"), Ok(Value::Int(2)));
assert_eq!(eval("shr(-6, 5)"), Ok(Value::Int(-1)));
assert_eq!(eval("if(true, -6, 5)"), Ok(Value::Int(-6)));
assert_eq!(eval("if(false, -6, 5)"), Ok(Value::Int(5)));
assert_eq!(
eval("if(2-1==1, \"good\", 0)"),
Ok(Value::String(String::from("good")))
);
}
#[test]
fn test_errors() {
assert_eq!(
eval("-true"),
Err(EvalexprError::expected_number(Value::Boolean(true)))
);
assert_eq!(
eval("1-true"),
Err(EvalexprError::expected_number(Value::Boolean(true)))
);
assert_eq!(
eval("true-"),
Err(EvalexprError::WrongOperatorArgumentAmount {
actual: 1,
expected: 2,
})
);
assert_eq!(eval("!(()true)"), Err(EvalexprError::AppendedToLeafNode));
assert_eq!(
eval("math::is_nan(\"xxx\")"),
Err(EvalexprError::ExpectedNumber {
actual: Value::String("xxx".to_string())
})
);
}
#[test]
fn test_no_panic() {
assert!(eval(&format!(
"{} + {}",
IntType::max_value(),
IntType::max_value()
))
.is_err());
assert!(eval(&format!(
"-{} - {}",
IntType::max_value(),
IntType::max_value()
))
.is_err());
assert!(eval(&format!("-(-{} - 1)", IntType::max_value())).is_err());
assert!(eval(&format!(
"{} * {}",
IntType::max_value(),
IntType::max_value()
))
.is_err());
assert!(eval(&format!("{} / {}", IntType::max_value(), 0)).is_err());
assert!(eval(&format!("{} % {}", IntType::max_value(), 0)).is_err());
assert!(eval(&format!(
"{} ^ {}",
IntType::max_value(),
IntType::max_value()
))
.is_ok());
assert!(eval("if").is_err());
assert!(eval("if()").is_err());
assert!(eval("if(true, 1)").is_err());
assert!(eval("if(false, 2)").is_err());
assert!(eval("if(1,1,1)").is_err());
assert!(eval("if(true,1,1,1)").is_err());
}
#[test]
fn test_shortcut_functions() {
let mut context = HashMapContext::new();
context
.set_value("string".into(), Value::from("a string"))
.unwrap();
assert_eq!(eval_string("\"3.3\""), Ok("3.3".to_owned()));
assert_eq!(
eval_string("3.3"),
Err(EvalexprError::ExpectedString {
actual: Value::Float(3.3)
})
);
assert_eq!(
eval_string("3..3"),
Err(EvalexprError::VariableIdentifierNotFound("3..3".to_owned()))
);
assert_eq!(
eval_string_with_context("string", &context),
Ok("a string".to_owned())
);
assert_eq!(
eval_string_with_context("3.3", &context),
Err(EvalexprError::ExpectedString {
actual: Value::Float(3.3)
})
);
assert_eq!(
eval_string_with_context("3..3", &context),
Err(EvalexprError::VariableIdentifierNotFound("3..3".to_owned()))
);
assert_eq!(
eval_string_with_context_mut("string", &mut context),
Ok("a string".to_string())
);
assert_eq!(
eval_string_with_context_mut("3.3", &mut context),
Err(EvalexprError::ExpectedString {
actual: Value::Float(3.3)
})
);
assert_eq!(
eval_string_with_context_mut("3..3", &mut context),
Err(EvalexprError::VariableIdentifierNotFound("3..3".to_owned()))
);
assert_eq!(eval_float("3.3"), Ok(3.3));
assert_eq!(
eval_float("33"),
Err(EvalexprError::ExpectedFloat {
actual: Value::Int(33)
})
);
assert_eq!(
eval_float("asd()"),
Err(EvalexprError::FunctionIdentifierNotFound("asd".to_owned()))
);
assert_eq!(eval_float_with_context("3.3", &context), Ok(3.3));
assert_eq!(
eval_float_with_context("33", &context),
Err(EvalexprError::ExpectedFloat {
actual: Value::Int(33)
})
);
assert_eq!(
eval_float_with_context("asd)", &context),
Err(EvalexprError::UnmatchedRBrace)
);
assert_eq!(eval_float_with_context_mut("3.3", &mut context), Ok(3.3));
assert_eq!(
eval_float_with_context_mut("33", &mut context),
Err(EvalexprError::ExpectedFloat {
actual: Value::Int(33)
})
);
assert_eq!(
eval_float_with_context_mut("asd(", &mut context),
Err(EvalexprError::UnmatchedLBrace)
);
assert_eq!(eval_int("3"), Ok(3));
assert_eq!(
eval_int("3.3"),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(3.3)
})
);
assert_eq!(
eval_int("(,);."),
Err(EvalexprError::VariableIdentifierNotFound(".".to_owned()))
);
assert_eq!(eval_int_with_context("3", &context), Ok(3));
assert_eq!(
eval_int_with_context("3.3", &context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(3.3)
})
);
assert_eq!(
eval_int_with_context("(,);.", &context),
Err(EvalexprError::VariableIdentifierNotFound(".".to_owned()))
);
assert_eq!(eval_int_with_context_mut("3", &mut context), Ok(3));
assert_eq!(
eval_int_with_context_mut("3.3", &mut context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(3.3)
})
);
assert_eq!(
eval_int_with_context_mut("(,);.", &mut context),
Err(EvalexprError::VariableIdentifierNotFound(".".to_owned()))
);
assert_eq!(eval_number("3"), Ok(3.0));
assert_eq!(
eval_number("true"),
Err(EvalexprError::ExpectedNumber {
actual: Value::Boolean(true)
})
);
assert_eq!(
eval_number("abc"),
Err(EvalexprError::VariableIdentifierNotFound("abc".to_owned()))
);
assert_eq!(eval_number_with_context("3.5", &context), Ok(3.5));
assert_eq!(eval_number_with_context("3", &context), Ok(3.0));
assert_eq!(
eval_number_with_context("true", &context),
Err(EvalexprError::ExpectedNumber {
actual: Value::Boolean(true)
})
);
assert_eq!(
eval_number_with_context("abc", &context),
Err(EvalexprError::VariableIdentifierNotFound("abc".to_owned()))
);
assert_eq!(eval_number_with_context_mut("3.5", &mut context), Ok(3.5));
assert_eq!(eval_number_with_context_mut("3", &mut context), Ok(3.0));
assert_eq!(
eval_number_with_context_mut("true", &mut context),
Err(EvalexprError::ExpectedNumber {
actual: Value::Boolean(true)
})
);
assert_eq!(
eval_number_with_context_mut("abc", &mut context),
Err(EvalexprError::VariableIdentifierNotFound("abc".to_owned()))
);
assert_eq!(eval_boolean("true"), Ok(true));
assert_eq!(
eval_boolean("4"),
Err(EvalexprError::ExpectedBoolean {
actual: Value::Int(4)
})
);
assert_eq!(
eval_boolean("trueee"),
Err(EvalexprError::VariableIdentifierNotFound(
"trueee".to_owned()
))
);
assert_eq!(eval_boolean_with_context("true", &context), Ok(true));
assert_eq!(
eval_boolean_with_context("4", &context),
Err(EvalexprError::ExpectedBoolean {
actual: Value::Int(4)
})
);
assert_eq!(
eval_boolean_with_context("trueee", &context),
Err(EvalexprError::VariableIdentifierNotFound(
"trueee".to_owned()
))
);
assert_eq!(
eval_boolean_with_context_mut("true", &mut context),
Ok(true)
);
assert_eq!(
eval_boolean_with_context_mut("4", &mut context),
Err(EvalexprError::ExpectedBoolean {
actual: Value::Int(4)
})
);
assert_eq!(
eval_boolean_with_context_mut("trueee", &mut context),
Err(EvalexprError::VariableIdentifierNotFound(
"trueee".to_owned()
))
);
assert_eq!(eval_tuple("3,3"), Ok(vec![Value::Int(3), Value::Int(3)]));
assert_eq!(
eval_tuple("33"),
Err(EvalexprError::ExpectedTuple {
actual: Value::Int(33)
})
);
assert_eq!(
eval_tuple("3a3"),
Err(EvalexprError::VariableIdentifierNotFound("3a3".to_owned()))
);
assert_eq!(
eval_tuple_with_context("3,3", &context),
Ok(vec![Value::Int(3), Value::Int(3)])
);
assert_eq!(
eval_tuple_with_context("33", &context),
Err(EvalexprError::ExpectedTuple {
actual: Value::Int(33)
})
);
assert_eq!(
eval_tuple_with_context("3a3", &context),
Err(EvalexprError::VariableIdentifierNotFound("3a3".to_owned()))
);
assert_eq!(
eval_tuple_with_context_mut("3,3", &mut context),
Ok(vec![Value::Int(3), Value::Int(3)])
);
assert_eq!(
eval_tuple_with_context_mut("33", &mut context),
Err(EvalexprError::ExpectedTuple {
actual: Value::Int(33)
})
);
assert_eq!(
eval_tuple_with_context_mut("3a3", &mut context),
Err(EvalexprError::VariableIdentifierNotFound("3a3".to_owned()))
);
assert_eq!(eval_empty(""), Ok(EMPTY_VALUE));
assert_eq!(eval_empty("()"), Ok(EMPTY_VALUE));
assert_eq!(
eval_empty("(,)"),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Tuple(vec![Value::Empty, Value::Empty])
})
);
assert_eq!(
eval_empty("xaq"),
Err(EvalexprError::VariableIdentifierNotFound("xaq".to_owned()))
);
assert_eq!(eval_empty_with_context("", &context), Ok(EMPTY_VALUE));
assert_eq!(eval_empty_with_context("()", &context), Ok(EMPTY_VALUE));
assert_eq!(
eval_empty_with_context("(,)", &context),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Tuple(vec![Value::Empty, Value::Empty])
})
);
assert_eq!(
eval_empty_with_context("xaq", &context),
Err(EvalexprError::VariableIdentifierNotFound("xaq".to_owned()))
);
assert_eq!(
eval_empty_with_context_mut("", &mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(
eval_empty_with_context_mut("()", &mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(
eval_empty_with_context_mut("(,)", &mut context),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Tuple(vec![Value::Empty, Value::Empty])
})
);
assert_eq!(
eval_empty_with_context_mut("xaq", &mut context),
Err(EvalexprError::VariableIdentifierNotFound("xaq".to_owned()))
);
assert_eq!(
build_operator_tree("\"3.3\"").unwrap().eval_string(),
Ok("3.3".to_owned())
);
assert_eq!(
build_operator_tree("3.3").unwrap().eval_string(),
Err(EvalexprError::ExpectedString {
actual: Value::Float(3.3)
})
);
assert_eq!(
build_operator_tree("3..3").unwrap().eval_string(),
Err(EvalexprError::VariableIdentifierNotFound("3..3".to_owned()))
);
assert_eq!(
build_operator_tree("string")
.unwrap()
.eval_string_with_context(&context),
Ok("a string".to_owned())
);
assert_eq!(
build_operator_tree("3.3")
.unwrap()
.eval_string_with_context(&context),
Err(EvalexprError::ExpectedString {
actual: Value::Float(3.3)
})
);
assert_eq!(
build_operator_tree("3..3")
.unwrap()
.eval_string_with_context(&context),
Err(EvalexprError::VariableIdentifierNotFound("3..3".to_owned()))
);
assert_eq!(
build_operator_tree("string")
.unwrap()
.eval_string_with_context_mut(&mut context),
Ok("a string".to_string())
);
assert_eq!(
build_operator_tree("3.3")
.unwrap()
.eval_string_with_context_mut(&mut context),
Err(EvalexprError::ExpectedString {
actual: Value::Float(3.3)
})
);
assert_eq!(
build_operator_tree("3..3")
.unwrap()
.eval_string_with_context_mut(&mut context),
Err(EvalexprError::VariableIdentifierNotFound("3..3".to_owned()))
);
assert_eq!(build_operator_tree("3.3").unwrap().eval_float(), Ok(3.3));
assert_eq!(
build_operator_tree("33").unwrap().eval_float(),
Err(EvalexprError::ExpectedFloat {
actual: Value::Int(33)
})
);
assert_eq!(
build_operator_tree("asd()").unwrap().eval_float(),
Err(EvalexprError::FunctionIdentifierNotFound("asd".to_owned()))
);
assert_eq!(
build_operator_tree("3.3")
.unwrap()
.eval_float_with_context(&context),
Ok(3.3)
);
assert_eq!(
build_operator_tree("33")
.unwrap()
.eval_float_with_context(&context),
Err(EvalexprError::ExpectedFloat {
actual: Value::Int(33)
})
);
assert_eq!(
build_operator_tree("asd")
.unwrap()
.eval_float_with_context(&context),
Err(EvalexprError::VariableIdentifierNotFound("asd".to_owned()))
);
assert_eq!(
build_operator_tree("3.3")
.unwrap()
.eval_float_with_context_mut(&mut context),
Ok(3.3)
);
assert_eq!(
build_operator_tree("33")
.unwrap()
.eval_float_with_context_mut(&mut context),
Err(EvalexprError::ExpectedFloat {
actual: Value::Int(33)
})
);
assert_eq!(
build_operator_tree("asd")
.unwrap()
.eval_float_with_context_mut(&mut context),
Err(EvalexprError::VariableIdentifierNotFound("asd".to_owned()))
);
assert_eq!(build_operator_tree("3").unwrap().eval_int(), Ok(3));
assert_eq!(
build_operator_tree("3.3").unwrap().eval_int(),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(3.3)
})
);
assert_eq!(
build_operator_tree("(,);.").unwrap().eval_int(),
Err(EvalexprError::VariableIdentifierNotFound(".".to_owned()))
);
assert_eq!(
build_operator_tree("3")
.unwrap()
.eval_int_with_context(&context),
Ok(3)
);
assert_eq!(
build_operator_tree("3.3")
.unwrap()
.eval_int_with_context(&context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(3.3)
})
);
assert_eq!(
build_operator_tree("(,);.")
.unwrap()
.eval_int_with_context(&context),
Err(EvalexprError::VariableIdentifierNotFound(".".to_owned()))
);
assert_eq!(
build_operator_tree("3")
.unwrap()
.eval_int_with_context_mut(&mut context),
Ok(3)
);
assert_eq!(
build_operator_tree("3.3")
.unwrap()
.eval_int_with_context_mut(&mut context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(3.3)
})
);
assert_eq!(
build_operator_tree("(,);.")
.unwrap()
.eval_int_with_context_mut(&mut context),
Err(EvalexprError::VariableIdentifierNotFound(".".to_owned()))
);
assert_eq!(build_operator_tree("3").unwrap().eval_number(), Ok(3.0));
assert_eq!(
build_operator_tree("true").unwrap().eval_number(),
Err(EvalexprError::ExpectedNumber {
actual: Value::Boolean(true)
})
);
assert_eq!(
build_operator_tree("abc").unwrap().eval_number(),
Err(EvalexprError::VariableIdentifierNotFound("abc".to_owned()))
);
assert_eq!(
build_operator_tree("3")
.unwrap()
.eval_number_with_context(&context),
Ok(3.0)
);
assert_eq!(
build_operator_tree("true")
.unwrap()
.eval_number_with_context(&context),
Err(EvalexprError::ExpectedNumber {
actual: Value::Boolean(true)
})
);
assert_eq!(
build_operator_tree("abc")
.unwrap()
.eval_number_with_context(&context),
Err(EvalexprError::VariableIdentifierNotFound("abc".to_owned()))
);
assert_eq!(
build_operator_tree("3")
.unwrap()
.eval_number_with_context_mut(&mut context),
Ok(3.0)
);
assert_eq!(
build_operator_tree("true")
.unwrap()
.eval_number_with_context_mut(&mut context),
Err(EvalexprError::ExpectedNumber {
actual: Value::Boolean(true)
})
);
assert_eq!(
build_operator_tree("abc")
.unwrap()
.eval_number_with_context_mut(&mut context),
Err(EvalexprError::VariableIdentifierNotFound("abc".to_owned()))
);
assert_eq!(
build_operator_tree("true").unwrap().eval_boolean(),
Ok(true)
);
assert_eq!(
build_operator_tree("4").unwrap().eval_boolean(),
Err(EvalexprError::ExpectedBoolean {
actual: Value::Int(4)
})
);
assert_eq!(
build_operator_tree("trueee").unwrap().eval_boolean(),
Err(EvalexprError::VariableIdentifierNotFound(
"trueee".to_owned()
))
);
assert_eq!(
build_operator_tree("true")
.unwrap()
.eval_boolean_with_context(&context),
Ok(true)
);
assert_eq!(
build_operator_tree("4")
.unwrap()
.eval_boolean_with_context(&context),
Err(EvalexprError::ExpectedBoolean {
actual: Value::Int(4)
})
);
assert_eq!(
build_operator_tree("trueee")
.unwrap()
.eval_boolean_with_context(&context),
Err(EvalexprError::VariableIdentifierNotFound(
"trueee".to_owned()
))
);
assert_eq!(
build_operator_tree("true")
.unwrap()
.eval_boolean_with_context_mut(&mut context),
Ok(true)
);
assert_eq!(
build_operator_tree("4")
.unwrap()
.eval_boolean_with_context_mut(&mut context),
Err(EvalexprError::ExpectedBoolean {
actual: Value::Int(4)
})
);
assert_eq!(
build_operator_tree("trueee")
.unwrap()
.eval_boolean_with_context_mut(&mut context),
Err(EvalexprError::VariableIdentifierNotFound(
"trueee".to_owned()
))
);
assert_eq!(
build_operator_tree("3,3").unwrap().eval_tuple(),
Ok(vec![Value::Int(3), Value::Int(3)])
);
assert_eq!(
build_operator_tree("33").unwrap().eval_tuple(),
Err(EvalexprError::ExpectedTuple {
actual: Value::Int(33)
})
);
assert_eq!(
build_operator_tree("3a3").unwrap().eval_tuple(),
Err(EvalexprError::VariableIdentifierNotFound("3a3".to_owned()))
);
assert_eq!(
build_operator_tree("3,3")
.unwrap()
.eval_tuple_with_context(&context),
Ok(vec![Value::Int(3), Value::Int(3)])
);
assert_eq!(
build_operator_tree("33")
.unwrap()
.eval_tuple_with_context(&context),
Err(EvalexprError::ExpectedTuple {
actual: Value::Int(33)
})
);
assert_eq!(
build_operator_tree("3a3")
.unwrap()
.eval_tuple_with_context(&context),
Err(EvalexprError::VariableIdentifierNotFound("3a3".to_owned()))
);
assert_eq!(
build_operator_tree("3,3")
.unwrap()
.eval_tuple_with_context_mut(&mut context),
Ok(vec![Value::Int(3), Value::Int(3)])
);
assert_eq!(
build_operator_tree("33")
.unwrap()
.eval_tuple_with_context_mut(&mut context),
Err(EvalexprError::ExpectedTuple {
actual: Value::Int(33)
})
);
assert_eq!(
build_operator_tree("3a3")
.unwrap()
.eval_tuple_with_context_mut(&mut context),
Err(EvalexprError::VariableIdentifierNotFound("3a3".to_owned()))
);
assert_eq!(
build_operator_tree("").unwrap().eval_empty(),
Ok(EMPTY_VALUE)
);
assert_eq!(
build_operator_tree("()").unwrap().eval_empty(),
Ok(EMPTY_VALUE)
);
assert_eq!(
build_operator_tree("(,)").unwrap().eval_empty(),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Tuple(vec![Value::Empty, Value::Empty])
})
);
assert_eq!(
build_operator_tree("xaq").unwrap().eval_empty(),
Err(EvalexprError::VariableIdentifierNotFound("xaq".to_owned()))
);
assert_eq!(
build_operator_tree("")
.unwrap()
.eval_empty_with_context(&context),
Ok(EMPTY_VALUE)
);
assert_eq!(
build_operator_tree("()")
.unwrap()
.eval_empty_with_context(&context),
Ok(EMPTY_VALUE)
);
assert_eq!(
build_operator_tree("(,)")
.unwrap()
.eval_empty_with_context(&context),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Tuple(vec![Value::Empty, Value::Empty])
})
);
assert_eq!(
build_operator_tree("xaq")
.unwrap()
.eval_empty_with_context(&context),
Err(EvalexprError::VariableIdentifierNotFound("xaq".to_owned()))
);
assert_eq!(
build_operator_tree("")
.unwrap()
.eval_empty_with_context_mut(&mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(
build_operator_tree("()")
.unwrap()
.eval_empty_with_context_mut(&mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(
build_operator_tree("(,)")
.unwrap()
.eval_empty_with_context_mut(&mut context),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Tuple(vec![Value::Empty, Value::Empty])
})
);
assert_eq!(
build_operator_tree("xaq")
.unwrap()
.eval_empty_with_context_mut(&mut context),
Err(EvalexprError::VariableIdentifierNotFound("xaq".to_owned()))
);
}
#[test]
fn test_whitespace() {
assert!(eval_boolean("2 < = 3").is_err());
}
#[test]
fn test_assignment() {
let mut context = HashMapContext::new();
assert_eq!(
eval_empty_with_context_mut("int = 3", &mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(
eval_empty_with_context_mut("float = 2.0", &mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(
eval_empty_with_context_mut("tuple = (1,1)", &mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(
eval_empty_with_context_mut("empty = ()", &mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(
eval_empty_with_context_mut("boolean = false", &mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(eval_int_with_context("int", &context), Ok(3));
assert_eq!(eval_float_with_context("float", &context), Ok(2.0));
assert_eq!(
eval_tuple_with_context("tuple", &context),
Ok(vec![1.into(), 1.into()])
);
assert_eq!(eval_empty_with_context("empty", &context), Ok(EMPTY_VALUE));
assert_eq!(eval_boolean_with_context("boolean", &context), Ok(false));
assert_eq!(
eval_empty_with_context_mut("b = a = 5", &mut context),
Ok(EMPTY_VALUE)
);
assert_eq!(eval_empty_with_context("b", &context), Ok(EMPTY_VALUE));
}
#[test]
fn test_expression_chaining() {
let mut context = HashMapContext::new();
assert_eq!(
eval_int_with_context_mut("a = 5; a = a + 2; a", &mut context),
Ok(7)
);
}
#[test]
fn test_strings() {
let mut context = HashMapContext::new();
assert_eq!(eval("\"string\""), Ok(Value::from("string")));
assert_eq!(
eval_with_context_mut("a = \"a string\"", &mut context),
Ok(Value::Empty)
);
assert_eq!(
eval_boolean_with_context("a == \"a string\"", &context),
Ok(true)
);
assert_eq!(eval("\"a\" + \"b\""), Ok(Value::from("ab")));
assert_eq!(eval("\"a\" > \"b\""), Ok(Value::from(false)));
assert_eq!(eval("\"a\" < \"b\""), Ok(Value::from(true)));
assert_eq!(eval("\"a\" >= \"b\""), Ok(Value::from(false)));
assert_eq!(eval("\"a\" <= \"b\""), Ok(Value::from(true)));
assert_eq!(eval("\"a\" >= \"a\""), Ok(Value::from(true)));
assert_eq!(eval("\"a\" <= \"a\""), Ok(Value::from(true)));
assert_eq!(eval("\"xa\" > \"xb\""), Ok(Value::from(false)));
assert_eq!(eval("\"xa\" < \"xb\""), Ok(Value::from(true)));
assert_eq!(eval("\"{}\" != \"{}\""), Ok(Value::from(false)));
assert_eq!(eval("\"{}\" == \"{}\""), Ok(Value::from(true)));
}
#[test]
fn test_string_escaping() {
assert_eq!(
eval("\"\\\"str\\\\ing\\\"\""),
Ok(Value::from("\"str\\ing\""))
);
}
#[test]
fn test_tuple_definitions() {
assert_eq!(eval_empty("()"), Ok(()));
assert_eq!(eval_int("(3)"), Ok(3));
assert_eq!(
eval_tuple("(3, 4)"),
Ok(vec![Value::from(3), Value::from(4)])
);
assert_eq!(
eval_tuple("2, (5, 6)"),
Ok(vec![
Value::from(2),
Value::from(vec![Value::from(5), Value::from(6)])
])
);
assert_eq!(eval_tuple("1, 2"), Ok(vec![Value::from(1), Value::from(2)]));
assert_eq!(
eval_tuple("1, 2, 3, 4"),
Ok(vec![
Value::from(1),
Value::from(2),
Value::from(3),
Value::from(4)
])
);
assert_eq!(
eval_tuple("(1, 2, 3), 5, 6, (true, false, 0)"),
Ok(vec![
Value::from(vec![Value::from(1), Value::from(2), Value::from(3)]),
Value::from(5),
Value::from(6),
Value::from(vec![Value::from(true), Value::from(false), Value::from(0)])
])
);
assert_eq!(
eval_tuple("1, (2)"),
Ok(vec![Value::from(1), Value::from(2)])
);
assert_eq!(
eval_tuple("1, ()"),
Ok(vec![Value::from(1), Value::from(())])
);
assert_eq!(
eval_tuple("1, ((2))"),
Ok(vec![Value::from(1), Value::from(2)])
);
}
#[test]
fn test_implicit_context() {
assert_eq!(
eval("a = 2 + 4 * 2; b = -5 + 3 * 5; a == b"),
Ok(Value::from(true))
);
assert_eq!(
eval_boolean("a = 2 + 4 * 2; b = -5 + 3 * 5; a == b"),
Ok(true)
);
assert_eq!(eval_int("a = 2 + 4 * 2; b = -5 + 3 * 5; a - b"), Ok(0));
assert_eq!(
eval_float("a = 2 + 4 * 2; b = -5 + 3 * 5; a - b + 0.5"),
Ok(0.5)
);
assert_eq!(eval_number("a = 2 + 4 * 2; b = -5 + 3 * 5; a - b"), Ok(0.0));
assert_eq!(eval_empty("a = 2 + 4 * 2; b = -5 + 3 * 5;"), Ok(()));
assert_eq!(
eval_tuple("a = 2 + 4 * 2; b = -5 + 3 * 5; a, b + 0.5"),
Ok(vec![Value::from(10), Value::from(10.5)])
);
assert_eq!(
eval_string("a = \"xyz\"; b = \"abc\"; c = a + b; c"),
Ok("xyzabc".to_string())
);
}
#[test]
fn test_operator_assignments() {
let mut context = HashMapContext::new();
assert_eq!(eval_empty_with_context_mut("a = 5", &mut context), Ok(()));
assert_eq!(eval_empty_with_context_mut("a += 5", &mut context), Ok(()));
assert_eq!(eval_empty_with_context_mut("a -= 5", &mut context), Ok(()));
assert_eq!(eval_empty_with_context_mut("a *= 5", &mut context), Ok(()));
assert_eq!(eval_empty_with_context_mut("b = 5.0", &mut context), Ok(()));
assert_eq!(eval_empty_with_context_mut("b /= 5", &mut context), Ok(()));
assert_eq!(eval_empty_with_context_mut("b %= 5", &mut context), Ok(()));
assert_eq!(eval_empty_with_context_mut("b ^= 5", &mut context), Ok(()));
assert_eq!(
eval_empty_with_context_mut("c = true", &mut context),
Ok(())
);
assert_eq!(
eval_empty_with_context_mut("c &&= false", &mut context),
Ok(())
);
assert_eq!(
eval_empty_with_context_mut("c ||= true", &mut context),
Ok(())
);
let mut context = HashMapContext::new();
assert_eq!(eval_int_with_context_mut("a = 5; a", &mut context), Ok(5));
assert_eq!(eval_int_with_context_mut("a += 3; a", &mut context), Ok(8));
assert_eq!(eval_int_with_context_mut("a -= 5; a", &mut context), Ok(3));
assert_eq!(eval_int_with_context_mut("a *= 5; a", &mut context), Ok(15));
assert_eq!(
eval_float_with_context_mut("b = 5.0; b", &mut context),
Ok(5.0)
);
assert_eq!(
eval_float_with_context_mut("b /= 2; b", &mut context),
Ok(2.5)
);
assert_eq!(
eval_float_with_context_mut("b %= 2; b", &mut context),
Ok(0.5)
);
assert_eq!(
eval_float_with_context_mut("b ^= 2; b", &mut context),
Ok(0.25)
);
assert_eq!(
eval_boolean_with_context_mut("c = true; c", &mut context),
Ok(true)
);
assert_eq!(
eval_boolean_with_context_mut("c &&= false; c", &mut context),
Ok(false)
);
assert_eq!(
eval_boolean_with_context_mut("c ||= true; c", &mut context),
Ok(true)
);
}
#[test]
fn test_type_errors_in_binary_operators() {
assert_eq!(
eval("4 + \"abc\""),
Err(EvalexprError::wrong_type_combination(
Operator::Add,
vec![ValueType::Int, ValueType::String]
))
);
assert_eq!(
eval("\"abc\" + 4"),
Err(EvalexprError::wrong_type_combination(
Operator::Add,
vec![ValueType::String, ValueType::Int]
))
);
}
#[test]
fn test_empty_context() {
let context = EmptyContext;
assert_eq!(context.get_value("abc"), None);
assert_eq!(
context.call_function("abc", &Value::Empty),
Err(EvalexprError::FunctionIdentifierNotFound("abc".to_owned()))
);
}
#[test]
fn test_hashmap_context_type_safety() {
let mut context = context_map! {"a" => 5, "b" => 5.0}.unwrap();
assert_eq!(
eval_with_context_mut("a = 4", &mut context),
Ok(Value::Empty)
);
assert_eq!(
eval_with_context_mut("a = 4.0", &mut context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(4.0)
})
);
assert_eq!(
eval_with_context_mut("a += 4.0", &mut context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(8.0)
})
);
assert_eq!(
eval_with_context_mut("a -= 4.0", &mut context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(0.0)
})
);
assert_eq!(
eval_with_context_mut("a *= 4.0", &mut context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(16.0)
})
);
assert_eq!(
eval_with_context_mut("a /= 4.0", &mut context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(1.0)
})
);
assert_eq!(
eval_with_context_mut("a %= 4.0", &mut context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(0.0)
})
);
assert_eq!(
eval_with_context_mut("a ^= 4.0", &mut context),
Err(EvalexprError::ExpectedInt {
actual: Value::Float(256.0)
})
);
assert_eq!(
eval_with_context_mut("b = 4.0", &mut context),
Ok(Value::Empty)
);
assert_eq!(
eval_with_context_mut("b = 4", &mut context),
Err(EvalexprError::ExpectedFloat {
actual: Value::Int(4)
})
);
assert_eq!(
eval_with_context_mut("b += 4", &mut context),
Ok(Value::Empty)
);
assert_eq!(
eval_with_context_mut("b -= 4", &mut context),
Ok(Value::Empty)
);
assert_eq!(
eval_with_context_mut("b *= 4", &mut context),
Ok(Value::Empty)
);
assert_eq!(
eval_with_context_mut("b /= 4", &mut context),
Ok(Value::Empty)
);
assert_eq!(
eval_with_context_mut("b %= 4", &mut context),
Ok(Value::Empty)
);
assert_eq!(
eval_with_context_mut("b ^= 4", &mut context),
Ok(Value::Empty)
);
}
#[test]
fn test_hashmap_context_clone_debug() {
let mut context = HashMapContext::new();
let three = 3;
context
.set_function(
"mult_3".into(),
Function::new(move |argument| {
if let Value::Int(int) = argument {
Ok(Value::Int(int * three))
} else if let Value::Float(float) = argument {
Ok(Value::Float(float * three as f64))
} else {
Err(EvalexprError::expected_number(argument.clone()))
}
}),
)
.unwrap();
let four = 4;
context
.set_function(
"function_four".into(),
Function::new(move |_| Ok(Value::Int(four))),
)
.unwrap();
context.set_value("variable_five".into(), 5.into()).unwrap();
let context = context;
let cloned_context = context.clone();
assert_eq!(format!("{:?}", &context), format!("{:?}", &cloned_context));
assert_eq!(
cloned_context.get_value("variable_five"),
Some(&Value::from(5))
);
assert_eq!(
eval_with_context("mult_3 2", &cloned_context),
Ok(Value::Int(6))
);
assert_eq!(
eval_with_context("mult_3(3)", &cloned_context),
Ok(Value::Int(9))
);
assert_eq!(
eval_with_context("mult_3(function_four())", &cloned_context),
Ok(Value::Int(12))
);
}
#[test]
fn test_error_constructors() {
assert_eq!(
eval("a = true + \"4\""),
Err(EvalexprError::ExpectedNumberOrString {
actual: Value::Boolean(true)
})
);
assert_eq!(
eval("a = true && \"4\""),
Err(EvalexprError::ExpectedBoolean {
actual: Value::from("4")
})
);
assert_eq!(
eval_tuple("4"),
Err(EvalexprError::ExpectedTuple {
actual: Value::Int(4)
})
);
assert_eq!(
Value::Tuple(vec![Value::Int(4), Value::Int(5)]).as_fixed_len_tuple(3),
Err(EvalexprError::ExpectedFixedLenTuple {
expected_len: 3,
actual: Value::Tuple(vec![Value::Int(4), Value::Int(5)])
})
);
assert_eq!(
eval_empty("4"),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Int(4)
})
);
assert_eq!(
eval("&"),
Err(EvalexprError::UnmatchedPartialToken {
first: PartialToken::Ampersand,
second: None
})
);
assert_eq!(expect_function_argument_amount(2, 2), Ok(()));
assert_eq!(
expect_function_argument_amount(2, 3),
Err(EvalexprError::WrongFunctionArgumentAmount {
expected: 3,
actual: 2
})
);
}
#[test]
fn test_iterators() {
let tree = build_operator_tree("writevar = 5 + 3 + fun(4) + var").unwrap();
let mut iter = tree.iter_identifiers();
assert_eq!(iter.next(), Some("writevar"));
assert_eq!(iter.next(), Some("fun"));
assert_eq!(iter.next(), Some("var"));
assert_eq!(iter.next(), None);
let mut iter = tree.iter_variable_identifiers();
assert_eq!(iter.next(), Some("writevar"));
assert_eq!(iter.next(), Some("var"));
assert_eq!(iter.next(), None);
let mut iter = tree.iter_read_variable_identifiers();
assert_eq!(iter.next(), Some("var"));
assert_eq!(iter.next(), None);
let mut iter = tree.iter_write_variable_identifiers();
assert_eq!(iter.next(), Some("writevar"));
assert_eq!(iter.next(), None);
let mut iter = tree.iter_function_identifiers();
assert_eq!(iter.next(), Some("fun"));
assert_eq!(iter.next(), None);
}
#[test]
fn test_same_operator_chains() {
#![allow(clippy::eq_op)]
assert_eq!(
eval("3.0 / 3.0 / 3.0 / 3.0"),
Ok(Value::from(3.0 / 3.0 / 3.0 / 3.0))
);
assert_eq!(
eval("3.0 - 3.0 - 3.0 - 3.0"),
Ok(Value::from(3.0 - 3.0 - 3.0 - 3.0))
);
}
#[test]
fn test_long_expression_i89() {
let tree = build_operator_tree(
"x*0.2*5/4+x*2*4*1*1*1*1*1*1*1+7*math::sin(y)-z/math::sin(3.0/2.0/(1-x*4*1*1*1*1))",
)
.unwrap();
let x = 0.0;
let y: f64 = 3.0;
let z = 4.0;
let context = context_map! {
"x" => 0.0,
"y" => 3.0,
"z" => 4.0
}
.unwrap();
let expected = x * 0.2 * 5.0 / 4.0
+ x * 2.0 * 4.0 * 1.0 * 1.0 * 1.0 * 1.0 * 1.0 * 1.0 * 1.0
+ 7.0 * y.sin()
- z / (3.0 / 2.0 / (1.0 - x * 4.0 * 1.0 * 1.0 * 1.0 * 1.0)).sin();
let actual = tree.eval_float_with_context(&context).unwrap();
assert!(
(expected - actual).abs() < expected.abs().min(actual.abs()) * 1e-12,
"expected: {}, actual: {}",
expected,
actual
);
}
#[test]
fn test_value_type() {
assert_eq!(
ValueType::from(&Value::String(String::new())),
ValueType::String
);
assert_eq!(ValueType::from(&Value::Float(0.0)), ValueType::Float);
assert_eq!(ValueType::from(&Value::Int(0)), ValueType::Int);
assert_eq!(ValueType::from(&Value::Boolean(true)), ValueType::Boolean);
assert_eq!(ValueType::from(&Value::Tuple(Vec::new())), ValueType::Tuple);
assert_eq!(ValueType::from(&Value::Empty), ValueType::Empty);
assert_eq!(
ValueType::from(&mut Value::String(String::new())),
ValueType::String
);
assert_eq!(ValueType::from(&mut Value::Float(0.0)), ValueType::Float);
assert_eq!(ValueType::from(&mut Value::Int(0)), ValueType::Int);
assert_eq!(
ValueType::from(&mut Value::Boolean(true)),
ValueType::Boolean
);
assert_eq!(
ValueType::from(&mut Value::Tuple(Vec::new())),
ValueType::Tuple
);
assert_eq!(ValueType::from(&mut Value::Empty), ValueType::Empty);
assert!(!Value::String(String::new()).is_number());
assert!(Value::Float(0.0).is_number());
assert!(Value::Int(0).is_number());
assert!(!Value::Boolean(true).is_number());
assert!(!Value::Tuple(Vec::new()).is_number());
assert!(!Value::Empty.is_number());
assert!(!Value::String(String::new()).is_empty());
assert!(!Value::Float(0.0).is_empty());
assert!(!Value::Int(0).is_empty());
assert!(!Value::Boolean(true).is_empty());
assert!(!Value::Tuple(Vec::new()).is_empty());
assert!(Value::Empty.is_empty());
assert_eq!(
Value::String(String::new()).as_float(),
Err(EvalexprError::ExpectedFloat {
actual: Value::String(String::new())
})
);
assert_eq!(Value::Float(0.0).as_float(), Ok(0.0));
assert_eq!(
Value::Int(0).as_float(),
Err(EvalexprError::ExpectedFloat {
actual: Value::Int(0)
})
);
assert_eq!(
Value::Boolean(true).as_float(),
Err(EvalexprError::ExpectedFloat {
actual: Value::Boolean(true)
})
);
assert_eq!(
Value::Tuple(Vec::new()).as_float(),
Err(EvalexprError::ExpectedFloat {
actual: Value::Tuple(Vec::new())
})
);
assert_eq!(
Value::Empty.as_float(),
Err(EvalexprError::ExpectedFloat {
actual: Value::Empty
})
);
assert_eq!(
Value::String(String::new()).as_tuple(),
Err(EvalexprError::ExpectedTuple {
actual: Value::String(String::new())
})
);
assert_eq!(
Value::Float(0.0).as_tuple(),
Err(EvalexprError::ExpectedTuple {
actual: Value::Float(0.0)
})
);
assert_eq!(
Value::Int(0).as_tuple(),
Err(EvalexprError::ExpectedTuple {
actual: Value::Int(0)
})
);
assert_eq!(
Value::Boolean(true).as_tuple(),
Err(EvalexprError::ExpectedTuple {
actual: Value::Boolean(true)
})
);
assert_eq!(Value::Tuple(Vec::new()).as_tuple(), Ok(Vec::new()));
assert_eq!(
Value::Empty.as_tuple(),
Err(EvalexprError::ExpectedTuple {
actual: Value::Empty
})
);
assert_eq!(
Value::String(String::new()).as_fixed_len_tuple(0),
Err(EvalexprError::ExpectedTuple {
actual: Value::String(String::new())
})
);
assert_eq!(
Value::Float(0.0).as_fixed_len_tuple(0),
Err(EvalexprError::ExpectedTuple {
actual: Value::Float(0.0)
})
);
assert_eq!(
Value::Int(0).as_fixed_len_tuple(0),
Err(EvalexprError::ExpectedTuple {
actual: Value::Int(0)
})
);
assert_eq!(
Value::Boolean(true).as_fixed_len_tuple(0),
Err(EvalexprError::ExpectedTuple {
actual: Value::Boolean(true)
})
);
assert_eq!(
Value::Tuple(Vec::new()).as_fixed_len_tuple(0),
Ok(Vec::new())
);
assert_eq!(
Value::Empty.as_fixed_len_tuple(0),
Err(EvalexprError::ExpectedTuple {
actual: Value::Empty
})
);
assert_eq!(
Value::String(String::new()).as_empty(),
Err(EvalexprError::ExpectedEmpty {
actual: Value::String(String::new())
})
);
assert_eq!(
Value::Float(0.0).as_empty(),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Float(0.0)
})
);
assert_eq!(
Value::Int(0).as_empty(),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Int(0)
})
);
assert_eq!(
Value::Boolean(true).as_empty(),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Boolean(true)
})
);
assert_eq!(
Value::Tuple(Vec::new()).as_empty(),
Err(EvalexprError::ExpectedEmpty {
actual: Value::Tuple(Vec::new())
})
);
assert_eq!(Value::Empty.as_empty(), Ok(()));
assert_eq!(
Result::from(Value::String(String::new())),
Ok(Value::String(String::new()))
);
}
#[test]
fn test_parenthese_combinations() {
assert_eq!(
eval("123(1*2)"),
Err(EvalexprError::MissingOperatorOutsideOfBrace)
);
assert_eq!(
eval("1()"),
Err(EvalexprError::MissingOperatorOutsideOfBrace)
);
assert_eq!(
eval("1()()()()"),
Err(EvalexprError::MissingOperatorOutsideOfBrace)
);
assert_eq!(
eval("1()()()(9)()()"),
Err(EvalexprError::MissingOperatorOutsideOfBrace)
);
assert_eq!(
eval_with_context("a+100(a*2)", &context_map! {"a" => 4}.unwrap()),
Err(EvalexprError::MissingOperatorOutsideOfBrace)
);
assert_eq!(eval_int("(((1+2)*(3+4)+(5-(6)))/((7-8)))"), Ok(-20));
assert_eq!(eval_int("(((((5)))))"), Ok(5));
}
#[test]
fn test_try_from() {
#![allow(clippy::redundant_clone)]
let value = Value::String("abc".to_string());
assert_eq!(String::try_from(value.clone()), Ok("abc".to_string()));
assert_eq!(
FloatType::try_from(value.clone()),
Err(EvalexprError::ExpectedFloat {
actual: value.clone()
})
);
assert_eq!(
IntType::try_from(value.clone()),
Err(EvalexprError::ExpectedInt {
actual: value.clone()
})
);
assert_eq!(
bool::try_from(value.clone()),
Err(EvalexprError::ExpectedBoolean {
actual: value.clone()
})
);
assert_eq!(
TupleType::try_from(value.clone()),
Err(EvalexprError::ExpectedTuple {
actual: value.clone()
})
);
assert_eq!(
EmptyType::try_from(value.clone()),
Err(EvalexprError::ExpectedEmpty {
actual: value.clone()
})
);
let value = Value::Float(1.3);
assert_eq!(
String::try_from(value.clone()),
Err(EvalexprError::ExpectedString {
actual: value.clone()
})
);
assert_eq!(FloatType::try_from(value.clone()), Ok(1.3));
assert_eq!(
IntType::try_from(value.clone()),
Err(EvalexprError::ExpectedInt {
actual: value.clone()
})
);
assert_eq!(
bool::try_from(value.clone()),
Err(EvalexprError::ExpectedBoolean {
actual: value.clone()
})
);
assert_eq!(
TupleType::try_from(value.clone()),
Err(EvalexprError::ExpectedTuple {
actual: value.clone()
})
);
assert_eq!(
EmptyType::try_from(value.clone()),
Err(EvalexprError::ExpectedEmpty {
actual: value.clone()
})
);
let value = Value::Int(13);
assert_eq!(
String::try_from(value.clone()),
Err(EvalexprError::ExpectedString {
actual: value.clone()
})
);
assert_eq!(
FloatType::try_from(value.clone()),
Err(EvalexprError::ExpectedFloat {
actual: value.clone()
})
);
assert_eq!(IntType::try_from(value.clone()), Ok(13));
assert_eq!(
bool::try_from(value.clone()),
Err(EvalexprError::ExpectedBoolean {
actual: value.clone()
})
);
assert_eq!(
TupleType::try_from(value.clone()),
Err(EvalexprError::ExpectedTuple {
actual: value.clone()
})
);
assert_eq!(
EmptyType::try_from(value.clone()),
Err(EvalexprError::ExpectedEmpty {
actual: value.clone()
})
);
let value = Value::Boolean(true);
assert_eq!(
String::try_from(value.clone()),
Err(EvalexprError::ExpectedString {
actual: value.clone()
})
);
assert_eq!(
FloatType::try_from(value.clone()),
Err(EvalexprError::ExpectedFloat {
actual: value.clone()
})
);
assert_eq!(
IntType::try_from(value.clone()),
Err(EvalexprError::ExpectedInt {
actual: value.clone()
})
);
assert_eq!(bool::try_from(value.clone()), Ok(true));
assert_eq!(
TupleType::try_from(value.clone()),
Err(EvalexprError::ExpectedTuple {
actual: value.clone()
})
);
assert_eq!(
EmptyType::try_from(value.clone()),
Err(EvalexprError::ExpectedEmpty {
actual: value.clone()
})
);
let value = Value::Tuple(vec![Value::Int(1), Value::String("abc".to_string())]);
assert_eq!(
String::try_from(value.clone()),
Err(EvalexprError::ExpectedString {
actual: value.clone()
})
);
assert_eq!(
FloatType::try_from(value.clone()),
Err(EvalexprError::ExpectedFloat {
actual: value.clone()
})
);
assert_eq!(
IntType::try_from(value.clone()),
Err(EvalexprError::ExpectedInt {
actual: value.clone()
})
);
assert_eq!(
bool::try_from(value.clone()),
Err(EvalexprError::ExpectedBoolean {
actual: value.clone()
})
);
assert_eq!(
TupleType::try_from(value.clone()),
Ok(vec![Value::Int(1), Value::String("abc".to_string())])
);
assert_eq!(
EmptyType::try_from(value.clone()),
Err(EvalexprError::ExpectedEmpty {
actual: value.clone()
})
);
let value = Value::Empty;
assert_eq!(
String::try_from(value.clone()),
Err(EvalexprError::ExpectedString {
actual: value.clone()
})
);
assert_eq!(
FloatType::try_from(value.clone()),
Err(EvalexprError::ExpectedFloat {
actual: value.clone()
})
);
assert_eq!(
IntType::try_from(value.clone()),
Err(EvalexprError::ExpectedInt {
actual: value.clone()
})
);
assert_eq!(
bool::try_from(value.clone()),
Err(EvalexprError::ExpectedBoolean {
actual: value.clone()
})
);
assert_eq!(
TupleType::try_from(value.clone()),
Err(EvalexprError::ExpectedTuple {
actual: value.clone()
})
);
assert_eq!(EmptyType::try_from(value.clone()), Ok(()));
}
#[test]
fn assignment_lhs_is_identifier() {
let tree = build_operator_tree("a = 1").unwrap();
let operators: Vec<_> = tree.iter().map(|node| node.operator().clone()).collect();
let mut context = HashMapContext::new();
tree.eval_with_context_mut(&mut context).unwrap();
assert_eq!(context.get_value("a"), Some(&Value::Int(1)));
assert!(
matches!(
operators.as_slice(),
[
Operator::Assign,
Operator::VariableIdentifierWrite { identifier: value },
Operator::Const {
value: Value::Int(1)
}
] if value == "a"
),
"actual: {:#?}",
operators
);
}
#[test]
fn test_variable_assignment_and_iteration() {
let mut context = HashMapContext::new();
eval_with_context_mut("a = 5; b = 5.0", &mut context).unwrap();
let mut variables: Vec<_> = context.iter_variables().collect();
variables.sort_unstable_by(|(name_a, _), (name_b, _)| name_a.cmp(name_b));
assert_eq!(
variables,
vec![("a".to_string(), 5.into()), ("b".to_string(), 5.0.into())],
);
let mut variables: Vec<_> = context.iter_variable_names().collect();
variables.sort_unstable();
assert_eq!(variables, vec!["a".to_string(), "b".to_string()],);
}