38 lines
1004 B
JavaScript
38 lines
1004 B
JavaScript
describe("toBeNaN", function() {
|
|
it("passes for NaN with a custom .not fail", function() {
|
|
var matcher = j$.matchers.toBeNaN(),
|
|
result;
|
|
|
|
result = matcher.compare(Number.NaN);
|
|
expect(result.pass).toBe(true);
|
|
expect(result.message).toEqual("Expected actual not to be NaN.");
|
|
});
|
|
|
|
it("fails for anything not a NaN", function() {
|
|
var matcher = j$.matchers.toBeNaN(),
|
|
result;
|
|
|
|
result = matcher.compare(1);
|
|
expect(result.pass).toBe(false);
|
|
|
|
result = matcher.compare(null);
|
|
expect(result.pass).toBe(false);
|
|
|
|
result = matcher.compare(void 0);
|
|
expect(result.pass).toBe(false);
|
|
|
|
result = matcher.compare('');
|
|
expect(result.pass).toBe(false);
|
|
|
|
result = matcher.compare(Number.POSITIVE_INFINITY);
|
|
expect(result.pass).toBe(false);
|
|
});
|
|
|
|
it("has a custom message on failure", function() {
|
|
var matcher = j$.matchers.toBeNaN(),
|
|
result = matcher.compare(0);
|
|
|
|
expect(result.message).toEqual("Expected 0 to be NaN.");
|
|
});
|
|
});
|