1 files changed, 272 insertions, 0 deletions
diff --git a/toolkit/jetpack/method/test/common.js b/toolkit/jetpack/method/test/common.js
new file mode 100644
index 000000000..0418c3a23
--- /dev/null
+++ b/toolkit/jetpack/method/test/common.js
@@ -0,0 +1,272 @@
+"use strict";
+
+var Method = require("../core")
+
+function type(value) {
+  return Object.prototype.toString.call(value).
+    split(" ").
+    pop().
+    split("]").
+    shift().
+    toLowerCase()
+}
+
+var values = [
+  null,                   // 0
+  undefined,              // 1
+  Infinity,               // 2
+  NaN,                    // 3
+  5,                      // 4
+  {},                     // 5
+  Object.create({}),      // 6
+  Object.create(null),    // 7
+  [],                     // 8
+  /foo/,                  // 9
+  new Date(),             // 10
+  Function,               // 11
+  function() {},          // 12
+  true,                   // 13
+  false,                  // 14
+  "string"                // 15
+]
+
+function True() { return true }
+function False() { return false }
+
+var trues = values.map(True)
+var falses = values.map(False)
+
+exports["test throws if not implemented"] = function(assert) {
+  var method = Method("nope")
+
+  assert.throws(function() {
+    method({})
+  }, /not implement/i, "method throws if not implemented")
+
+  assert.throws(function() {
+    method(null)
+  }, /not implement/i, "method throws on null")
+}
+
+exports["test all types inherit from default"] = function(assert) {
+  var isImplemented = Method("isImplemented")
+  isImplemented.define(function() { return true })
+
+  values.forEach(function(value) {
+    assert.ok(isImplemented(value),
+              type(value) + " inherits deafult implementation")
+  })
+}
+
+exports["test default can be implemented later"] = function(assert) {
+  var isImplemented = Method("isImplemented")
+  isImplemented.define(function() {
+    return true
+  })
+
+  values.forEach(function(value) {
+    assert.ok(isImplemented(value),
+              type(value) + " inherits deafult implementation")
+  })
+}
+
+exports["test dispatch not-implemented"] = function(assert) {
+  var isDefault = Method("isDefault")
+  values.forEach(function(value) {
+    assert.throws(function() {
+      isDefault(value)
+    }, /not implement/, type(value) + " throws if not implemented")
+  })
+}
+
+exports["test dispatch default"] = function(assert) {
+  var isDefault = Method("isDefault")
+
+  // Implement default
+  isDefault.define(True)
+  assert.deepEqual(values.map(isDefault), trues,
+                   "all implementation inherit from default")
+
+}
+
+exports["test dispatch null"] = function(assert) {
+  var isNull = Method("isNull")
+
+  // Implement default
+  isNull.define(False)
+  isNull.define(null, True)
+  assert.deepEqual(values.map(isNull),
+                   [ true ].
+                   concat(falses.slice(1)),
+                   "only null gets methods defined for null")
+}
+
+exports["test dispatch undefined"] = function(assert) {
+  var isUndefined = Method("isUndefined")
+
+  // Implement default
+  isUndefined.define(False)
+  isUndefined.define(undefined, True)
+  assert.deepEqual(values.map(isUndefined),
+                   [ false, true ].
+                   concat(falses.slice(2)),
+                   "only undefined gets methods defined for undefined")
+}
+
+exports["test dispatch object"] = function(assert) {
+  var isObject = Method("isObject")
+
+  // Implement default
+  isObject.define(False)
+  isObject.define(Object, True)
+  assert.deepEqual(values.map(isObject),
+                   [ false, false, false, false, false ].
+                   concat(trues.slice(5, 13)).
+                   concat([false, false, false]),
+                   "all values except primitives inherit Object methods")
+
+}
+
+exports["test dispatch number"] = function(assert) {
+  var isNumber = Method("isNumber")
+  isNumber.define(False)
+  isNumber.define(Number, True)
+
+  assert.deepEqual(values.map(isNumber),
+                  falses.slice(0, 2).
+                  concat(true, true, true).
+                  concat(falses.slice(5)),
+                  "all numbers inherit from Number method")
+}
+
+exports["test dispatch string"] = function(assert) {
+  var isString = Method("isString")
+  isString.define(False)
+  isString.define(String, True)
+
+  assert.deepEqual(values.map(isString),
+                  falses.slice(0, 15).
+                  concat(true),
+                  "all strings inherit from String method")
+}
+
+exports["test dispatch function"] = function(assert) {
+  var isFunction = Method("isFunction")
+  isFunction.define(False)
+  isFunction.define(Function, True)
+
+  assert.deepEqual(values.map(isFunction),
+                  falses.slice(0, 11).
+                  concat(true, true).
+                  concat(falses.slice(13)),
+                  "all functions inherit from Function method")
+}
+
+exports["test dispatch date"] = function(assert) {
+  var isDate = Method("isDate")
+  isDate.define(False)
+  isDate.define(Date, True)
+
+  assert.deepEqual(values.map(isDate),
+                  falses.slice(0, 10).
+                  concat(true).
+                  concat(falses.slice(11)),
+                  "all dates inherit from Date method")
+}
+
+exports["test dispatch RegExp"] = function(assert) {
+  var isRegExp = Method("isRegExp")
+  isRegExp.define(False)
+  isRegExp.define(RegExp, True)
+
+  assert.deepEqual(values.map(isRegExp),
+                  falses.slice(0, 9).
+                  concat(true).
+                  concat(falses.slice(10)),
+                  "all regexps inherit from RegExp method")
+}
+
+exports["test redefine for descendant"] = function(assert) {
+  var isFoo = Method("isFoo")
+  var ancestor = {}
+  isFoo.implement(ancestor, function() { return true })
+  var descendant = Object.create(ancestor)
+  isFoo.implement(descendant, function() { return false })
+
+  assert.ok(isFoo(ancestor), "defined on ancestor")
+  assert.ok(!isFoo(descendant), "overrided for descendant")
+}
+
+exports["test on custom types"] = function(assert) {
+  function Bar() {}
+  var isBar = Method("isBar")
+
+  isBar.define(function() { return false })
+  isBar.define(Bar, function() { return true })
+
+  assert.ok(!isBar({}), "object is get's default implementation")
+  assert.ok(isBar(new Bar()), "Foo type objects get own implementation")
+
+  var isObject = Method("isObject")
+  isObject.define(function() { return false })
+  isObject.define(Object, function() { return true })
+
+  assert.ok(isObject(new Bar()), "foo inherits implementation from object")
+
+
+  isObject.define(Bar, function() { return false })
+
+  assert.ok(!isObject(new Bar()),
+            "implementation inherited form object can be overrided")
+}
+
+
+exports["test error types"] = function(assert) {
+  var isError = Method("isError")
+  isError.define(function() { return false })
+  isError.define(Error, function() { return true })
+
+  assert.ok(isError(Error("boom")), "error is error")
+  assert.ok(isError(TypeError("boom")), "type error is an error")
+  assert.ok(isError(EvalError("boom")), "eval error is an error")
+  assert.ok(isError(RangeError("boom")), "range error is an error")
+  assert.ok(isError(ReferenceError("boom")), "reference error is an error")
+  assert.ok(isError(SyntaxError("boom")), "syntax error is an error")
+  assert.ok(isError(URIError("boom")), "URI error is an error")
+}
+
+exports["test override define polymorphic method"] = function(assert) {
+  var define = Method.define
+  var implement = Method.implement
+
+  var fn = Method("fn")
+  var methods = {}
+  implement(define, fn, function(method, label, implementation) {
+    methods[label] = implementation
+  })
+
+  function foo() {}
+
+  define(fn, "foo-case", foo)
+
+  assert.equal(methods["foo-case"], foo, "define set property")
+}
+
+exports["test override define via method API"] = function(assert) {
+  var define = Method.define
+  var implement = Method.implement
+
+  var fn = Method("fn")
+  var methods = {}
+  define.implement(fn, function(method, label, implementation) {
+    methods[label] = implementation
+  })
+
+  function foo() {}
+
+  define(fn, "foo-case", foo)
+
+  assert.equal(methods["foo-case"], foo, "define set property")
+}
+
+require("test").run(exports)