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path: root/tools/addon-sdk-1.4/packages/api-utils/tests/commonjs-test-adapter/asserts.js
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"use strict";

const AssertBase = require("test/assert").Assert;

/**
 * Generates custom assertion constructors that may be bundled with a test
 * suite.
 * @params {String}
 *    names of assertion function to be added to the generated Assert.
 */
function Assert() {
  let assertDescriptor = {};
  Array.forEach(arguments, function(name) {
    assertDescriptor[name] = { value: function(message) {
      this.pass(message);
    }}
  });

  return function Assert() {
    return Object.create(AssertBase.apply(null, arguments), assertDescriptor);
  };
}

exports["test suite"] = {
  Assert: Assert("foo"),
  "test that custom assertor is passed to test function": function(assert) {
    assert.ok("foo" in assert, "custom assertion function `foo` is defined");
    assert.foo("custom assertion function `foo` is called");
  },
  "test sub suite": {
    "test that `Assert` is inherited by sub suits": function(assert) {
      assert.ok("foo" in assert, "assertion function `foo` is not defined");
    },
    "test sub sub suite": {
      Assert: Assert("bar"),
      "test that custom assertor is passed to test function": function(assert) {
        assert.ok("bar" in assert,
                  "custom assertion function `bar` is defined");
        assert.bar("custom assertion function `bar` is called");
      },
      "test that `Assert` is not inherited by sub sub suits": function(assert) {
        assert.ok(!("foo" in assert),
                  "assertion function `foo` is not defined");
      }
    }
  }
};

if (module == require.main)
  require("test").run(exports);