Files
jasmine/spec/core/matchers/toBeNegativeInfinitySpec.js
Steve Gravrock 1f23f1e4d2 Inject a per-runable pretty printer into MatchersUtil
This will allow us to add support for custom object formatters, which
will be a per-runable resource like custom matchers, by injecting them
into the pretty-printer.
2020-02-10 17:26:00 -08:00

34 lines
1004 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({
pp: jasmineUnderTest.makePrettyPrinter()
}),
result = matcher.compare(0);
expect(result.message()).toEqual("Expected 0 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 not to be -Infinity.")
});
});