Module assert_fn 

Assert for comparing functions.

These macros help compare functions that return anything. The macros call the functions, then compare the return values.

Compare a function with another function:

• assert_fn_eq!(a_function, b_function) ≈ a_function() = b_function()
• assert_fn_ne!(a_function, b_function) ≈ a_function() ≠ b_function()
• assert_fn_ge!(a_function, b_function) ≈ a_function() ≥ b_function()
• assert_fn_gt!(a_function, b_function) ≈ a_function() > b_function()
• assert_fn_le!(a_function, b_function) ≈ a_function() ≤ b_function()
• assert_fn_lt!(a_function, b_function) ≈ a_function() < b_function()

Compare a function with an expression:

• assert_fn_eq_x!(function, expr) ≈ function() = expr
• assert_fn_ne_x!(function, expr) ≈ function() ≠ expr
• assert_fn_ge_x!(function, expr) ≈ function() ≥ expr
• assert_fn_gt_x!(function, expr) ≈ function() > expr
• assert_fn_le_x!(function, expr) ≈ function() ≤ expr
• assert_fn_lt_x!(function, expr) ≈ function() < expr

Example

use assertables::*;

let a: i8 = -1;
let b: i8 = 1;
assert_fn_eq!(i8::abs, a, i8::abs, b);

Modules

assert_fn_eq

Assert a function output is equal to another.

assert_fn_eq_x

Assert a function output is equal to an expression.

assert_fn_ge

Assert a function output is greater than or equal to another.

assert_fn_ge_x

Assert a function output is greater than or equal to an expression.

assert_fn_gt

Assert a function output is greater than another.

assert_fn_gt_x

Assert a function output is greater than an expression.

assert_fn_le

Assert a function output is less than or equal to another.

assert_fn_le_x

Assert a function output is less than or equal to an expression.

assert_fn_lt

Assert a function output is less than another.

assert_fn_lt_x

Assert a function output is less than an expression.

assert_fn_ne

Assert a function output is not equal to another.

assert_fn_ne_x

Assert a function output is not equal to an expression.