February 2018
Intermediate to advanced
406 pages
9h 52m
English
Content preview from Rails 5 Test Prescriptions
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Jasmine Matchers
So far you’ve only seen toEqual as a core Jasmine matcher, but Jasmine defines quite a few. Here are the built-in matchers.
Matcher | Passes if |
|---|---|
toBe(actual) | expected === actual (JavaScript triple equal). |
toBeCloseTo(actual, precision) | The floating-point value of actual is within precision amount of the expected value. |
toBeGreaterThan(actual) | expected > actual. |
toBeFalsy() | The expected value is a JavaScript falsy value. |
toBeLessThan(actual) | expected < actual. |
toBeNull() | The expected value is null. |
toBeTruthy() | The expected value is a JavaScript truthy value. |
toBeUndefined() | The expected value is undefined; no actual argument needed. |
toContain(actual) | expected is an array that contains the actual value. |
toEqual(actual) | expected and actual are equal values. ... |