Adds metal-assertions module to packages (#215)

packages/metal-assertions/LICENSE.md

@@ -0,0 +1,30 @@
+# Software License Agreement (BSD License)
+
+Copyright (c) 2017, Liferay Inc.
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, with or without modification, are
+permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* The name of Liferay Inc. may not be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of Liferay Inc.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+

packages/metal-assertions/README.md

@@ -0,0 +1,3 @@
+# metal-assertions
+
+A collection of assertion methods for metal

packages/metal-assertions/package.json

@@ -0,0 +1,31 @@
+{
+  "name": "metal-assertions",
+  "version": "2.6.4",
+  "description": "A collection of assertion methods for metal",
+  "license": "BSD-3-Clause",
+  "repository": "https://github.com/metal/metal.js/tree/master/packages/metal-assertions",
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">=3.0.0"
+  },
+  "jsnext:main": "src/assertions.js",
+  "main": "lib/assertions.js",
+  "files": [
+    "lib",
+    "src"
+  ],
+  "scripts": {
+    "compile": "babel --presets es2015 -d lib/ src/",
+    "prepublish": "npm run compile"
+  },
+  "keywords": [
+    "metal"
+  ],
+  "dependencies": {
+    "metal": "^2.6.4"
+  },
+  "devDependencies": {
+    "babel-cli": "^6.4.5",
+    "babel-preset-es2015": "^6.0.0"
+  }
+}

packages/metal-assertions/src/assertions.js

@@ -0,0 +1,146 @@
+import {
+	isBoolean,
+	isDef,
+	isDefAndNotNull,
+	isDocument,
+	isDocumentFragment,
+	isElement,
+	isFunction,
+	isNull,
+	isNumber,
+	isObject,
+	isString,
+	isWindow,
+} from 'metal';
+
+/**
+ * Asserts value is a boolean.
+ * @param  {*} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertBoolean(value, errorMessage) {
+	if (!isBoolean(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is defined.
+ * @param  {Object} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertDef(value, errorMessage) {
+	if (!isDef(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is defined and not null.
+ * @param  {Object} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertDefAndNotNull(value, errorMessage) {
+	if (!isDefAndNotNull(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is a function.
+ * @param  {Function} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertFunction(value, errorMessage) {
+	if (!isFunction(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is not null.
+ * @param  {Object} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertNotNull(value, errorMessage) {
+	if (isNull(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is a number.
+ * @param  {Number} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertNumber(value, errorMessage) {
+	if (!isNumber(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is an object.
+ * @param  {Object} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertObject(value, errorMessage) {
+	if (!isObject(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is a string.
+ * @param  {String} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertString(value, errorMessage) {
+	if (!isString(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is a document.
+ * @param  {Document} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertDocument(value, errorMessage) {
+	if (!isDocument(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is a document fragment.
+ * @param  {DocumentFragment} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertDocumentFragment(value, errorMessage) {
+	if (!isDocumentFragment(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is an element.
+ * @param  {Element} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertElement(value, errorMessage) {
+	if (!isElement(value)) {
+		throw new Error(errorMessage);
+	}
+}
+
+/**
+ * Asserts value is a window.
+ * @param  {Window} value
+ * @param  {string} errorMessage Error message
+ */
+export function assertWindow(value, errorMessage) {
+	if (!isWindow(value)) {
+		throw new Error(errorMessage);
+	}
+}

packages/metal-assertions/test/.eslintrc.json

@@ -0,0 +1,9 @@
+{
+  "env": {
+    "mocha": true
+  },
+  "globals": {
+    "assert": true,
+    "sinon": true
+  }
+}