1 files changed, 335 insertions, 0 deletions
diff --git a/tools/addon-sdk-1.7/packages/api-utils/tests/traits/descriptor-tests.js b/tools/addon-sdk-1.7/packages/api-utils/tests/traits/descriptor-tests.js
new file mode 100644
index 0000000..b775ff4
--- /dev/null
+++ b/tools/addon-sdk-1.7/packages/api-utils/tests/traits/descriptor-tests.js
@@ -0,0 +1,335 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+var Trait = require("light-traits").Trait;
+var utils = require("./utils");
+var Data = utils.Data;
+var Method = utils.Method;
+var Accessor = utils.Accessor;
+var Required = utils.Required;
+var Conflict = utils.Conflict;
+
+function method() {}
+
+exports.Assert = require("./assert").Assert
+exports["test simple composition"] = function(assert) {
+  var actual = Trait.compose(
+    Trait({ a: 0, b: 1 }),
+    { c: { value: 2 }, d: { value: method, enumerable: true } }
+  );
+
+  var expected = {
+    a: Data(0),
+    b: Data(1),
+    c: Data(2, false, false, false),
+    d: Method(method, true, false, false)
+  };
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test composition with conflict"] = function(assert) {
+  var actual = Trait.compose(
+    Trait({ a: 0, b: 1 }),
+    {
+      a: {
+        value: 2,
+        writable: true,
+        configurable: true,
+        enumerable: true
+      },
+      c: {
+        value: method,
+        configurable: true
+      }
+    }
+  );
+
+  var expected = {
+    a: Conflict("a"),
+    b: Data(1),
+    c: Method(method, false, true, false)
+  };
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test identical props does not cause conflict"] = function(assert) {
+  var actual = Trait.compose(
+    {
+      a: {
+        value: 0,
+        writable: true,
+        configurable: true,
+        enumerable: true
+      },
+      b: {
+        value: 1
+      }
+    },
+    Trait({
+      a: 0,
+      c: method
+    })
+  );
+
+  var expected = {
+    a: Data(0),
+    b: Data(1, false, false, false),
+    c: Method(method)
+  }
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test composition with identical required props"] = function(assert) {
+  var actual = Trait.compose(
+    Trait({ a: Trait.required, b: 1 }),
+    { a: { required: true }, c: { value: method } }
+  );
+
+  var expected = {
+    a: Required(),
+    b: Data(1),
+    c: Method(method, false, false, false)
+  };
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test composition satisfying a required prop"] = function(assert) {
+  var actual = Trait.compose(
+    Trait({ a: Trait.required, b: 1 }),
+    { a: { value: method, enumerable: true } }
+  );
+
+  var expected = {
+    a: Method(method, true, false, false),
+    b: Data(1)
+  };
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test compose is neutral wrt conflicts"] = function(assert) {
+  var actual = Trait.compose(
+    Trait({ a: { value: 1 } }, Trait({ a: 2 })),
+    { b: { value: 0, writable: true, configurable: true, enumerable: false } }
+  );
+
+  var expected = { a: Conflict("a"), b: Data(0, false) };
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test conflicting prop overrides Trait.required"] = function(assert) {
+  var actual = Trait.compose(
+    Trait.compose(
+      Trait({ a: 1 }),
+      { a: { value: 2 } }
+    ),
+    { a: { value: Trait.required } }
+  );
+
+  var expected = { a: Conflict("a") };
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test compose is commutative"] = function(assert) {
+  var actual = Trait.compose(
+    Trait({ a: 0, b: 1 }),
+    { c: { value: 2 }, d: { value: method } }
+  );
+
+  var expected = Trait.compose(
+    { c: { value: 2 }, d: { value: method } },
+    Trait({ a: 0, b: 1 })
+  );
+
+  assert.equalTraits(actual, expected);
+}
+
+exports["test compose is commutative, also for required/conflicting props"] = function(assert) {
+  var actual = Trait.compose(
+    {
+      a: { value: 0 },
+      b: { value: 1 },
+      c: { value: 3 },
+      e: { value: Trait.required }
+    },
+    {
+      c: { value: 2 },
+      d: { get: method }
+    }
+  );
+
+  var expected = Trait.compose(
+    Trait({ c: 3 }),
+    {
+      c: { value: 2 },
+      d: { get: method },
+      a: { value: 0 },
+      b: { value: 1 },
+      e: { value: Trait.required },
+    }
+  );
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test compose is associative"] = function(assert) {
+  var actual = Trait.compose(
+    {
+      a: { value: 0 },
+      b: { value: 1 },
+      c: { value: 3 },
+      d: { value: Trait.required }
+    },
+    Trait.compose(
+      { c: { value: 3 }, d: { value: Trait.required } },
+      { c: { value: 2 }, d: { value: method }, e: { value: "foo" } }
+    )
+  );
+
+  var expected = Trait.compose(
+    Trait.compose(
+      {
+        a: { value: 0 },
+        b: { value: 1 },
+        c: { value: 3 },
+        d: { value: Trait.required }
+      },
+      {
+        c: { value: 3 },
+        d: { value: Trait.required }
+      }
+    ),
+    {
+      c: { value: 2 },
+      d: { value: method },
+      e: { value: "foo" }
+    }
+  );
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test diamond import of same prop do not conflict"] = function(assert) {
+  var actual = Trait.compose(
+    Trait.compose(
+      { b: { value: 2 } },
+      { a: { value: 1, enumerable: true, configurable: true, writable: true } }
+    ),
+    Trait.compose(
+      { c: { value: 3 } },
+      Trait({ a: 1 })
+    ),
+    Trait({ d: 4 })
+  );
+
+  var expected = {
+    a: Data(1),
+    b: Data(2, false, false, false),
+    c: Data(3, false, false, false),
+    d: Data(4)
+  };
+
+  assert.equalTraits(actual, expected);
+};
+
+exports["test create simple"] = function(assert) {
+  var o1 = Trait.compose(
+    Trait({ a: 1 }),
+    {
+      b: {
+        value: function() {
+          return this.a;
+        }
+      }
+    }
+  ).create(Object.prototype);
+
+  assert.equal(Object.getPrototypeOf(o1), Object.prototype, "o1 prototype");
+  assert.equal(1, o1.a, "o1.a");
+  assert.equal(1, o1.b(), "o1.b()");
+  assert.equal(Object.keys(o1).length, 1, "Object.keys(o1).length === 2");
+};
+
+exports["test create with Array.prototype"] = function(assert) {
+  var o2 = Trait.compose({}, {}).create(Array.prototype);
+  assert.equal(Object.getPrototypeOf(o2), Array.prototype, "o2 prototype");
+};
+
+exports["test exception for incomplete required properties"] = function(assert) {
+  assert.throws(function() {
+    Trait({ foo: Trait.required }).create(Object.prototype)
+  }, /Missing required property: `foo`/, "required prop error");
+}
+
+exports["test exception for unresolved conflicts"] = function(assert) {
+  assert.throws(function() {
+    Trait(Trait({ a: 0 }), Trait({ a: 1 })).create({})
+  }, /Remaining conflicting property: `a`/, "conflicting prop error");
+}
+
+exports["test conflicting properties are present"] = function(assert) {
+  var o5 = Object.create(Object.prototype, Trait.compose(
+    { a: { value: 0 } },
+    { a: { value: 1 } }
+  ));
+
+  assert.ok("a" in o5, "conflicting property present");
+  assert.throws(function() {
+    o5.a
+  }, /Remaining conflicting property: `a`/, "conflicting prop access error");
+};
+
+exports["test diamond with conflicts"] = function(assert) {
+  function makeT1(x) {
+    return {
+      m: {
+        value: function() {
+          return x
+        }
+      }
+    };
+  };
+
+  function makeT2(x) {
+    return Trait.compose(
+      Trait({ t2: "foo" }),
+      makeT1(x)
+    );
+  };
+
+  function makeT3(x) {
+    return Trait.compose(
+      {
+        t3: { value: "bar" }
+      },
+      makeT1(x)
+    );
+  };
+
+  var T4 = Trait.compose(makeT2(5), makeT3(5));
+
+  assert.throws(function() {
+    T4.create(Object.prototype);
+  }, /Remaining conflicting property: `m`/, "diamond prop conflict");
+};
+
+exports["test providing requirements through proto"] = function(assert) {
+  var t = Trait.compose(
+    {},
+    { required: { required: true } }
+  ).create({ required: "test" });
+
+  assert.equal(t.required, "test", "property from proto is inherited");
+};
+
+if (module == require.main)
+  require("test").run(exports);