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use serde_yaml::Value;
use std::{
collections::BTreeMap,
path::{Path, PathBuf},
};
use crate::{error::*, fetch::find_tests, output::TestExpectation, test::*};
#[derive(Debug, PartialEq, Clone, Copy)]
pub enum ParseType {
Line,
ContinuousLines,
Whole,
}
pub struct Test {
pub name: String,
pub content: String,
pub path: PathBuf,
pub config: BTreeMap<String, Value>,
}
pub trait Namespace {
fn parse_type(&self) -> ParseType;
fn run_test(&self, test: Test) -> Result<Value, String>;
}
pub trait Runner {
fn resolve_namespace(&self, name: &str) -> Option<Box<dyn Namespace>>;
}
pub fn run_tests<T: Runner>(runner: &T, expectation_category: &str) {
let mut pass_categories = 0;
let mut pass_tests = 0;
let mut fail_tests = 0;
let mut fail_categories = Vec::new();
let mut tests = Vec::new();
let mut test_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
test_dir.push("../tests/");
let mut expectation_dir = test_dir.clone();
expectation_dir.push("expectations");
find_tests(&test_dir, &mut tests);
let filter = std::env::var("TEST_FILTER").unwrap_or_default();
let filter = filter.trim();
let mut outputs = vec![];
for (path, content) in tests.into_iter() {
if !filter.is_empty() && !path.contains(filter) {
continue;
}
let config = extract_test_config(&content);
if config.is_none() {
continue;
}
let config = config.unwrap();
let namespace = runner.resolve_namespace(&config.namespace);
if namespace.is_none() {
continue;
}
let namespace = namespace.unwrap();
let path = Path::new(&path);
let relative_path = path.strip_prefix(&test_dir).expect("path error for test");
let mut expectation_path = expectation_dir.clone();
expectation_path.push(expectation_category);
expectation_path.push(relative_path.parent().expect("no parent dir for test"));
let mut expectation_name = relative_path
.file_name()
.expect("no file name for test")
.to_str()
.unwrap()
.to_string();
expectation_name += ".out";
expectation_path.push(&expectation_name);
let test_name = relative_path
.file_stem()
.expect("no file name for test")
.to_str()
.unwrap()
.to_string();
let expectations: Option<TestExpectation> = if expectation_path.exists() {
if !std::env::var("CLEAR_LEO_TEST_EXPECTATIONS")
.unwrap_or_default()
.trim()
.is_empty()
{
None
} else {
let raw = std::fs::read_to_string(&expectation_path).expect("failed to read expectations file");
Some(serde_yaml::from_str(&raw).expect("invalid yaml in expectations file"))
}
} else {
None
};
let end_of_header = content.find("*/").expect("failed to find header block in test");
let content = &content[end_of_header + 2..];
let tests = match namespace.parse_type() {
ParseType::Line => crate::fetch::split_tests_oneline(content)
.into_iter()
.map(|x| x.to_string())
.collect(),
ParseType::ContinuousLines => crate::fetch::split_tests_twoline(content),
ParseType::Whole => vec![content.to_string()],
};
let mut errors = vec![];
if let Some(expectations) = expectations.as_ref() {
if tests.len() != expectations.outputs.len() {
errors.push(TestError::MismatchedTestExpectationLength);
}
}
let mut new_outputs = vec![];
let mut expected_output = expectations.as_ref().map(|x| x.outputs.iter());
for (i, test) in tests.into_iter().enumerate() {
let expected_output = expected_output.as_mut().map(|x| x.next()).flatten().cloned();
println!("running test {} @ '{}'", test_name, path.to_str().unwrap());
let output = namespace.run_test(Test {
name: test_name.clone(),
content: test.clone(),
path: path.into(),
config: config.extra.clone(),
});
if let Some(error) = emit_errors(
output.as_ref().map_err(|x| &**x),
&config.expectation,
expected_output,
i,
) {
fail_tests += 1;
errors.push(error);
} else {
pass_tests += 1;
new_outputs.push(
output
.as_ref()
.map(|x| serde_yaml::to_value(x).expect("serialization failed"))
.unwrap_or_else(|e| Value::String(e.clone())),
);
}
}
if errors.is_empty() {
if expectations.is_none() {
outputs.push((expectation_path, TestExpectation {
namespace: config.namespace,
expectation: config.expectation,
outputs: new_outputs,
}));
}
pass_categories += 1;
} else {
fail_categories.push(TestFailure {
path: path.to_str().unwrap().to_string(),
errors,
})
}
}
if !fail_categories.is_empty() {
for (i, fail) in fail_categories.iter().enumerate() {
println!(
"\n\n-----------------TEST #{} FAILED (and shouldn't have)-----------------",
i + 1
);
println!("File: {}", fail.path);
for error in &fail.errors {
println!("{}", error);
}
}
panic!(
"failed {}/{} tests in {}/{} categories",
pass_tests,
fail_tests + pass_tests,
fail_categories.len(),
fail_categories.len() + pass_categories
);
} else {
for (path, new_expectation) in outputs {
std::fs::create_dir_all(path.parent().unwrap()).expect("failed to make test expectation parent directory");
std::fs::write(
&path,
serde_yaml::to_string(&new_expectation).expect("failed to serialize expectation yaml"),
)
.expect("failed to write expectation file");
}
println!(
"passed {}/{} tests in {}/{} categories",
pass_tests,
fail_tests + pass_tests,
pass_categories,
pass_categories
);
}
}