UCG Testing Modules

The UCG testing modules can be imported like so let t = import "std/testing.ucg"; It has a number of helpful assertions you can use in unit testing.

The asserts modules

The asserts module exposes a number of asserts. It contains nested modules for each available assertion. You can configure the asserts module with a default description if desired.

Each of the asserts results in a result field that is a tuple with the shape that the assert statement expects.

The asserts module has one parameter.

• default_description which is optional and defaults to "TODO description"

ok assertion

The ok assertion module tests that something is true. It has two parameters.

• test which is required and is represents the expression to test.
• desc which is an optional description to output for your test. This defaults to the default_description that the asserts modules was set to.

let t = import "std/testing.ucg".asserts{};

assert t.ok{
    test=true,
};

no_ok assertion

The not_ok assertion module tests that something is not true. It has two parameters.

• test which is required and is represents the expression to test.
• desc which is an optional description to output for your test. This defaults to the default_description that the asserts modules was set to.

let t = import "std/testing.ucg".asserts{};

assert t.ok{
    test=true,
};

equal assertion

The equal assertion module tests that two items are equal. It has three parameters.

• left which is required and is the left hand side expression to compare
• right which is required is the right hand side expression to compare.
• desc which is an optional description to output for your test. This defaults to a description created from the compared values.

let t = import "std/testing.ucg".asserts{};

assert t.equal{
    left=1,
    right=1,
};

not_equal assertion

The not_equal assertion module tests that two items are not equal. It has two parameters.

• left which is required and is the left hand side expression to compare
• right which is required is the right hand side expression to compare.
• desc which is an optional description to output for your test. This defaults to a description created from the compared values.

let t = import "std/testing.ucg".asserts{};

assert t.not_equal{
    left=1,
    right=2,
};