classnames.spec.js
2 months ago
dateUtils.spec.js
2 months ago
formatters.spec.js
2 months ago
pluginUtils.spec.js
2 months ago
transformers.spec.js
2 months ago
classnames.spec.js
38 lines
| 1 | import classnames from "../classnames"; |
| 2 | |
| 3 | describe("classnames", () => { |
| 4 | it("returns an empty string when called with no args", () => { |
| 5 | expect(classnames()).toBe(""); |
| 6 | }); |
| 7 | |
| 8 | it("joins string args with spaces", () => { |
| 9 | expect(classnames("a", "b", "c")).toBe("a b c"); |
| 10 | }); |
| 11 | |
| 12 | it("includes numeric args verbatim", () => { |
| 13 | expect(classnames("col", 4, "row")).toBe("col 4 row"); |
| 14 | }); |
| 15 | |
| 16 | it("flattens nested arrays recursively", () => { |
| 17 | expect(classnames(["a", ["b", ["c"]]], "d")).toBe("a b c d"); |
| 18 | }); |
| 19 | |
| 20 | it("includes object keys whose values are truthy", () => { |
| 21 | expect( |
| 22 | classnames({ active: true, disabled: false, primary: 1 }) |
| 23 | ).toBe("active primary"); |
| 24 | }); |
| 25 | |
| 26 | it("ignores object keys whose values are falsy", () => { |
| 27 | expect( |
| 28 | classnames({ a: false, b: null, c: undefined, d: 0, e: "" }) |
| 29 | ).toBe(""); |
| 30 | }); |
| 31 | |
| 32 | it("mixes strings, arrays, and objects in one call", () => { |
| 33 | expect( |
| 34 | classnames("base", ["foo", { bar: true, baz: false }], { qux: 1 }) |
| 35 | ).toBe("base foo bar qux"); |
| 36 | }); |
| 37 | }); |
| 38 |