Boolean Assertions

Table of Contents

1. toBeTrue
2. toBeFalse

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toBeTrue

expect(item: boolean).toBeTrue(message?: string): this;

Asserts that the tested item is true.

Outputs optional message in case of a failed assertion.

Example

expect(2 + 2 === 4).toBeTrue();

expect(2 + 2 === 5).toBeTrue(); // Assertion Error

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toBeFalse

expect(item: boolean).toBeFalse(message?: string): this;

Asserts that the tested item is false.

Outputs optional message in case of a failed assertion.

Example

expect(2 + 2 === 5).toBeFalse();

expect(2 + 2 === 4).toBeFalse(); // Assertion Error