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Versions: 30
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Stored size: 1.97 KB
Contents
"use strict";
var assert = require("chai").assert
, isFunction = require("../../function/is")
, arrowFunctionIfSupported = require("../_lib/arrow-function-if-supported")
, classIfSupported = require("../_lib/class-if-supported");
describe("function/is", function () {
it("Should return true on function", function () {
assert.equal(isFunction(function () { return true; }), true);
});
if (arrowFunctionIfSupported) {
it("Should return true on arrow function", function () {
assert.equal(isFunction(arrowFunctionIfSupported), true);
});
}
if (classIfSupported) {
it("Should return true on class", function () {
assert.equal(isFunction(classIfSupported), true);
});
}
it("Should return false on reg-exp", function () { assert.equal(isFunction(/foo/), false); });
it("Should return false on plain object", function () { assert.equal(isFunction({}), false); });
it("Should return false on array", function () { assert.equal(isFunction([]), false); });
if (typeof Object.create === "function") {
it("Should return false on object with no prototype", function () {
assert.equal(isFunction(Object.create(null)), false);
});
}
it("Should return false on string", function () { assert.equal(isFunction("foo"), false); });
it("Should return false on empty string", function () { assert.equal(isFunction(""), false); });
it("Should return false on number", function () { assert.equal(isFunction(123), false); });
it("Should return false on NaN", function () { assert.equal(isFunction(NaN), false); });
it("Should return false on boolean", function () { assert.equal(isFunction(true), false); });
if (typeof Symbol === "function") {
it("Should return false on symbol", function () {
assert.equal(isFunction(Symbol("foo")), false);
});
}
it("Should return false on null", function () { assert.equal(isFunction(null), false); });
it("Should return false on undefined", function () {
assert.equal(isFunction(void 0), false);
});
});
Version data entries
30 entries across 29 versions & 2 rubygems