AssertContainsString asserts that a string contains a substring.

AssertEqual asserts that the expected and actual values are deeply equal.

AssertError asserts that the expected and actual errors are the same.

AssertFalse sserts that the actual value is false.

AssertNil asserts that a value is nil.

AssertNotEqual asserts that the expected and actual values are not deeply equal.

AssertNotNil asserts that a value is not nil.

AssertTrue asserts that the actual value is true.

AssertWithTimeout asserts that an operation is completed within a certain period of time.

IsNil checks if a value is nil.