Files
jasmine/spec/core/matchers/toBeNegativeInfinitySpec.js
2017-03-27 00:04:43 +02:00

32 lines
946 B
JavaScript

describe("toBeNegativeInfinity", function() {
it("fails for anything that isn't -Infinity", function() {
var matcher = jasmineUnderTest.matchers.toBeNegativeInfinity(),
result;
result = matcher.compare(1);
expect(result.pass).toBe(false);
result = matcher.compare(Number.NaN);
expect(result.pass).toBe(false);
result = matcher.compare(null);
expect(result.pass).toBe(false);
});
it("has a custom message on failure", function() {
var matcher = jasmineUnderTest.matchers.toBeNegativeInfinity(),
result = matcher.compare(0);
expect(result.message()).toEqual("Expected 0 not to be -Infinity.")
});
it("succeeds for -Infinity", function() {
var matcher = jasmineUnderTest.matchers.toBeNegativeInfinity(),
result = matcher.compare(Number.NEGATIVE_INFINITY);
expect(result.pass).toBe(true);
expect(result.message).toEqual("Expected actual to be -Infinity.")
});
});