dev/core/test/com/google/gwt/core/ext/linker/impl/SelectionScriptJavaScriptTest.java - gwt - Git at Google

 /*
  * Copyright 2010 Google Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
  * the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  * License for the specific language governing permissions and limitations under
  * the License.
  */

 package com.google.gwt.core.ext.linker.impl;

 import com.google.gwt.util.tools.Utility;

 import com.gargoylesoftware.htmlunit.AlertHandler;
 import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
 import com.gargoylesoftware.htmlunit.MockWebConnection;
 import com.gargoylesoftware.htmlunit.Page;
 import com.gargoylesoftware.htmlunit.WebClient;

 import junit.framework.TestCase;

 import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;

 /**
  * Tests the JavaScript code in the selection script test using HtmlUnit.
  */
 public class SelectionScriptJavaScriptTest extends TestCase {
   private static String TEST_MODULE_NAME = "test.Module";

   /**
    * Return script code that includes the definition of computeScriptBase(),
    * most of the variables it needs to run, and a call to the function. It
    * assumes that the metaProps variable is already in scope.
    */
   private static String loadComputeScriptBase() throws IOException {
     StringBuilder code = new StringBuilder();
     code.append("var base = \"\", $doc=document;\n");
     code.append("__gwt_getMetaProperty = function(name) { "
                  + "var value = metaProps[name];"
                  + "return (value == null) ? null : value; }");
     code.append(Utility.getFileFromClassPath(SelectionScriptLinker.COMPUTE_SCRIPT_BASE_JS));
     code.append("computeScriptBase();\n");
     return code.toString();
   }

   /**
    * Return script code that includes the definition of processMetas(), all
    * variables it needs to run, and a call to the function.
    */
   private static String loadProcessMetas() throws IOException {
     StringBuilder code = new StringBuilder();
     code.append("var metaProps = { }, propertyErrorFunc, onLoadErrorFunc;\n");
     code.append(Utility.getFileFromClassPath(SelectionScriptLinker.PROCESS_METAS_JS));
     code.append("processMetas();\n");
     return code.toString().replaceAll("__MODULE_NAME__", TEST_MODULE_NAME);
   }

   /**
    * Test a meta tag specifying a base for this module
    */
   public void testModuleSpecificMetas1() throws IOException {
     StringBuilder metas = new StringBuilder();
     metas.append("<meta name=\"" + TEST_MODULE_NAME
         + "::gwt:property\" content=\"baseUrl=http://new/base\">\n");

     StringBuilder testCode = new StringBuilder();
     testCode.append(loadProcessMetas());
     testCode.append("alert('baseUrl='+metaProps['baseUrl']);\n");

     List<String> alerts = loadPage(makeHostPage(metas), testCode);

     assertEquals(1, alerts.size());
     assertEquals("baseUrl=http://new/base", alerts.get(0));
   }

   /**
    * Test a meta tag specifying a base for a different module.
    */
   public void testModuleSpecificMetas2() throws IOException {
     StringBuilder metas = new StringBuilder();
     metas.append("<meta name=\"some.other.module::gwt:property\" content=\"baseUrl=http://new/base\">\n");

     StringBuilder testCode = new StringBuilder();
     testCode.append(loadProcessMetas());
     testCode.append("alert('baseUrl='+metaProps['baseUrl']);\n");

     List<String> alerts = loadPage(makeHostPage(metas), testCode);

     assertEquals(1, alerts.size());
     assertEquals("baseUrl=undefined", alerts.get(0));
   }

   /**
    * Test that all the meta tags are extracted.
    */
   public void testProcessMetas() throws FailingHttpStatusCodeException,
       MalformedURLException, IOException {
     StringBuilder metas = new StringBuilder();
     metas.append("<meta name=\"gwt:property\" content=\"baseUrl=http://new/base\">\n");
     metas.append("<meta name=\"gwt:property\" content=\"novalue\">\n");
     metas.append("<meta name=\"gwt:onPropertyErrorFn\" content=\"function() { alert('custom prop error called');}\"}>\n");
     metas.append("<meta name=\"gwt:onLoadErrorFn\" content=\"function() { alert('custom onLoad error called');}\">\n");

     StringBuilder testCode = new StringBuilder();
     testCode.append(loadProcessMetas());
     testCode.append("alert('baseUrl='+metaProps['baseUrl']);\n");
     testCode.append("alert('novalue='+metaProps['novalue']);\n");
     testCode.append("alert('absent='+metaProps['absent']);\n");
     testCode.append("propertyErrorFunc();\n");
     testCode.append("onLoadErrorFunc();\n");

     List<String> alerts = loadPage(makeHostPage(metas), testCode);

     assertEquals(5, alerts.size());
     Iterator<String> alertsIter = alerts.iterator();
     assertEquals("baseUrl=http://new/base", alertsIter.next());
     assertEquals("novalue=", alertsIter.next());
     assertEquals("absent=undefined", alertsIter.next());
     assertEquals("custom prop error called", alertsIter.next());
     assertEquals("custom onLoad error called", alertsIter.next());
   }

   /**
    * Test the default href
    */
   public void testDefault() throws IOException {
     StringBuilder testCode = new StringBuilder();
     testCode.append("var metaProps = { };\n");
     testCode.append("function isBodyLoaded() { return true; }\n");
     testCode.append(loadComputeScriptBase());
     testCode.append("alert('base='+base);\n");

     List<String> alerts = loadPage(makeHostPage(""), testCode);

     assertEquals(1, alerts.size());
     assertEquals("base=http://foo.test/", alerts.get(0));
   }

   /**
    * Test the script base with no meta properties.
    */
   public void testScriptBase() throws IOException {
     StringBuilder testCode = new StringBuilder();
     testCode.append("var metaProps = { };\n");
     testCode.append("function isBodyLoaded() { return false; }\n");
     testCode.append(loadComputeScriptBase());
     testCode.append("alert('base='+base);\n");

     List<String> alerts = loadPage(makeHostPage(""), testCode);

     assertEquals(1, alerts.size());
     assertEquals("base=http://foo.test/foo/", alerts.get(0));
   }

   /**
    * Test getting the base URL from a meta property with an absolute URL
    */
   public void testScriptBaseFromMetas() throws IOException {
     StringBuilder testCode = new StringBuilder();
     testCode.append("var metaProps = { baseUrl : \"http://static.test/fromMetaTag/\" };\n");
     testCode.append(loadComputeScriptBase());
     testCode.append("alert('base='+base);\n");

     List<String> alerts = loadPage(makeHostPage(""), testCode);

     assertEquals(1, alerts.size());
     assertEquals("base=http://static.test/fromMetaTag/", alerts.get(0));
   }

   /**
    * Test getting the base URL from a meta property with a relative URL
    */
   public void testRelativeScriptBaseFromMetas() throws IOException {
     StringBuilder testCode = new StringBuilder();
     testCode.append("var metaProps = { baseUrl : \"fromMeta/tag/\" };\n");
     testCode.append(loadComputeScriptBase());
     testCode.append("alert('base='+base);\n");

     List<String> alerts = loadPage(makeHostPage(""), testCode);

     assertEquals(1, alerts.size());
     assertEquals("base=http://foo.test/fromMeta/tag/", alerts.get(0));
   }

   /**
    * Test the script base logic for an inlined selection script.
    */
   public void testScriptBaseForInlined() throws IOException {
     StringBuilder hostPage = new StringBuilder();
     hostPage.append("<html><head>\n");
     hostPage.append("<script lang=\"javascript\"><!--\n");
     hostPage.append("var metaProps = { }\n");
     hostPage.append(loadComputeScriptBase());
     hostPage.append("alert('base='+base);\n");
     hostPage.append("--></script>\n");

     List<String> alerts = loadPage(hostPage.toString(), "");

     assertEquals(1, alerts.size());
     assertEquals("base=http://foo.test/", alerts.get(0));
   }

   /**
    * Test getting a the base URL from the HTML base tag
    */
   public void testScriptBaseFromBaseTag() throws IOException {
     StringBuilder hostPage = new StringBuilder();
     hostPage.append("<html><head>\n");
     hostPage.append("<base href=\"http://static.test/fromBaseTag/\">\n");
     hostPage.append("<script lang=\"javascript\"><!--\n");
     hostPage.append("var metaProps = { }\n");
     hostPage.append(loadComputeScriptBase());
     hostPage.append("alert('base='+base);\n");
     hostPage.append("--></script>\n");

     List<String> alerts = loadPage(hostPage.toString(), "");

     assertEquals(1, alerts.size());
     assertEquals("base=http://static.test/fromBaseTag/", alerts.get(0));
   }

   /**
    * Test the script base logic for an inlined selection script.
    */
   public void testNocacheJsTag() throws IOException {
     StringBuilder hostPage = new StringBuilder();
     hostPage.append("<html><head>\n");
     hostPage.append("<script lang='javascript' type='application/javascript' ");
     hostPage.append("src='from/nocache/__MODULE_NAME__.nocache.js'></script>\n");
     hostPage.append("<script lang=\"javascript\"><!--\n");
     hostPage.append("var metaProps = { }\n");
     hostPage.append(loadComputeScriptBase());
     hostPage.append("alert('base='+base);\n");
     hostPage.append("--></script>\n");

     List<String> alerts = loadPage(hostPage.toString(), "");

     assertEquals(1, alerts.size());
     assertEquals("base=http://foo.test/from/nocache/", alerts.get(0));
   }

   /**
    * Load a page and return all alerts that it generates.
    */
   private List<String> loadPage(String hostPage, CharSequence testScript)
       throws FailingHttpStatusCodeException, MalformedURLException, IOException {
     WebClient webClient = new WebClient();

     // Make a mock web connection that can return the host page and the test
     // script
     MockWebConnection webConnection = new MockWebConnection();
     webConnection.setDefaultResponse(hostPage, "text/html");
     webConnection.setResponse(new URL(
         "http://foo.test/foo/test.Module.nocache.js"), testScript.toString(),
         "application/javascript");
     webConnection.setResponse(new URL(
             "http://foo.test/from/nocache/__MODULE_NAME__.nocache.js"),
             testScript.toString(),
             "application/javascript");
     webClient.setWebConnection(webConnection);

     final List<String> alerts = new ArrayList<String>();
     webClient.setAlertHandler(new AlertHandler() {
       @Override
       public void handleAlert(Page page, String msg) {
         alerts.add(msg);
       }
     });

     webClient.getPage("http://foo.test/");
     return alerts;
   }

   private String makeHostPage(CharSequence metas) {
     StringBuilder buf = new StringBuilder();
     buf.append("<html><head>\n");
     buf.append(metas);
     buf.append("<script src=\"/foo/test.Module.nocache.js\">\n");
     buf.append("</head></html>");
     return buf.toString();
   }
 }
	/*
	* Copyright 2010 Google Inc.
	*
	* Licensed under the Apache License, Version 2.0 (the "License"); you may not
	* use this file except in compliance with the License. You may obtain a copy of
	* the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
	* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
	* License for the specific language governing permissions and limitations under
	* the License.
	*/

	package com.google.gwt.core.ext.linker.impl;

	import com.google.gwt.util.tools.Utility;

	import com.gargoylesoftware.htmlunit.AlertHandler;
	import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
	import com.gargoylesoftware.htmlunit.MockWebConnection;
	import com.gargoylesoftware.htmlunit.Page;
	import com.gargoylesoftware.htmlunit.WebClient;

	import junit.framework.TestCase;

	import java.io.IOException;
	import java.net.MalformedURLException;
	import java.net.URL;
	import java.util.ArrayList;
	import java.util.Iterator;
	import java.util.List;

	/**
	* Tests the JavaScript code in the selection script test using HtmlUnit.
	*/
	public class SelectionScriptJavaScriptTest extends TestCase {
	private static String TEST_MODULE_NAME = "test.Module";

	/**
	* Return script code that includes the definition of computeScriptBase(),
	* most of the variables it needs to run, and a call to the function. It
	* assumes that the metaProps variable is already in scope.
	*/
	private static String loadComputeScriptBase() throws IOException {
	StringBuilder code = new StringBuilder();
	code.append("var base = \"\", $doc=document;\n");
	code.append("__gwt_getMetaProperty = function(name) { "
	+ "var value = metaProps[name];"
	+ "return (value == null) ? null : value; }");
	code.append(Utility.getFileFromClassPath(SelectionScriptLinker.COMPUTE_SCRIPT_BASE_JS));
	code.append("computeScriptBase();\n");
	return code.toString();
	}

	/**
	* Return script code that includes the definition of processMetas(), all
	* variables it needs to run, and a call to the function.
	*/
	private static String loadProcessMetas() throws IOException {
	StringBuilder code = new StringBuilder();
	code.append("var metaProps = { }, propertyErrorFunc, onLoadErrorFunc;\n");
	code.append(Utility.getFileFromClassPath(SelectionScriptLinker.PROCESS_METAS_JS));
	code.append("processMetas();\n");
	return code.toString().replaceAll("__MODULE_NAME__", TEST_MODULE_NAME);
	}

	/**
	* Test a meta tag specifying a base for this module
	*/
	public void testModuleSpecificMetas1() throws IOException {
	StringBuilder metas = new StringBuilder();
	metas.append("<meta name=\"" + TEST_MODULE_NAME
	+ "::gwt:property\" content=\"baseUrl=http://new/base\">\n");

	StringBuilder testCode = new StringBuilder();
	testCode.append(loadProcessMetas());
	testCode.append("alert('baseUrl='+metaProps['baseUrl']);\n");

	List<String> alerts = loadPage(makeHostPage(metas), testCode);

	assertEquals(1, alerts.size());
	assertEquals("baseUrl=http://new/base", alerts.get(0));
	}

	/**
	* Test a meta tag specifying a base for a different module.
	*/
	public void testModuleSpecificMetas2() throws IOException {
	StringBuilder metas = new StringBuilder();
	metas.append("<meta name=\"some.other.module::gwt:property\" content=\"baseUrl=http://new/base\">\n");

	StringBuilder testCode = new StringBuilder();
	testCode.append(loadProcessMetas());
	testCode.append("alert('baseUrl='+metaProps['baseUrl']);\n");

	List<String> alerts = loadPage(makeHostPage(metas), testCode);

	assertEquals(1, alerts.size());
	assertEquals("baseUrl=undefined", alerts.get(0));
	}

	/**
	* Test that all the meta tags are extracted.
	*/
	public void testProcessMetas() throws FailingHttpStatusCodeException,
	MalformedURLException, IOException {
	StringBuilder metas = new StringBuilder();
	metas.append("<meta name=\"gwt:property\" content=\"baseUrl=http://new/base\">\n");
	metas.append("<meta name=\"gwt:property\" content=\"novalue\">\n");
	metas.append("<meta name=\"gwt:onPropertyErrorFn\" content=\"function() { alert('custom prop error called');}\"}>\n");
	metas.append("<meta name=\"gwt:onLoadErrorFn\" content=\"function() { alert('custom onLoad error called');}\">\n");

	StringBuilder testCode = new StringBuilder();
	testCode.append(loadProcessMetas());
	testCode.append("alert('baseUrl='+metaProps['baseUrl']);\n");
	testCode.append("alert('novalue='+metaProps['novalue']);\n");
	testCode.append("alert('absent='+metaProps['absent']);\n");
	testCode.append("propertyErrorFunc();\n");
	testCode.append("onLoadErrorFunc();\n");

	List<String> alerts = loadPage(makeHostPage(metas), testCode);

	assertEquals(5, alerts.size());
	Iterator<String> alertsIter = alerts.iterator();
	assertEquals("baseUrl=http://new/base", alertsIter.next());
	assertEquals("novalue=", alertsIter.next());
	assertEquals("absent=undefined", alertsIter.next());
	assertEquals("custom prop error called", alertsIter.next());
	assertEquals("custom onLoad error called", alertsIter.next());
	}

	/**
	* Test the default href
	*/
	public void testDefault() throws IOException {
	StringBuilder testCode = new StringBuilder();
	testCode.append("var metaProps = { };\n");
	testCode.append("function isBodyLoaded() { return true; }\n");
	testCode.append(loadComputeScriptBase());
	testCode.append("alert('base='+base);\n");

	List<String> alerts = loadPage(makeHostPage(""), testCode);

	assertEquals(1, alerts.size());
	assertEquals("base=http://foo.test/", alerts.get(0));
	}

	/**
	* Test the script base with no meta properties.
	*/
	public void testScriptBase() throws IOException {
	StringBuilder testCode = new StringBuilder();
	testCode.append("var metaProps = { };\n");
	testCode.append("function isBodyLoaded() { return false; }\n");
	testCode.append(loadComputeScriptBase());
	testCode.append("alert('base='+base);\n");

	List<String> alerts = loadPage(makeHostPage(""), testCode);

	assertEquals(1, alerts.size());
	assertEquals("base=http://foo.test/foo/", alerts.get(0));
	}

	/**
	* Test getting the base URL from a meta property with an absolute URL
	*/
	public void testScriptBaseFromMetas() throws IOException {
	StringBuilder testCode = new StringBuilder();
	testCode.append("var metaProps = { baseUrl : \"http://static.test/fromMetaTag/\" };\n");
	testCode.append(loadComputeScriptBase());
	testCode.append("alert('base='+base);\n");

	List<String> alerts = loadPage(makeHostPage(""), testCode);

	assertEquals(1, alerts.size());
	assertEquals("base=http://static.test/fromMetaTag/", alerts.get(0));
	}

	/**
	* Test getting the base URL from a meta property with a relative URL
	*/
	public void testRelativeScriptBaseFromMetas() throws IOException {
	StringBuilder testCode = new StringBuilder();
	testCode.append("var metaProps = { baseUrl : \"fromMeta/tag/\" };\n");
	testCode.append(loadComputeScriptBase());
	testCode.append("alert('base='+base);\n");

	List<String> alerts = loadPage(makeHostPage(""), testCode);

	assertEquals(1, alerts.size());
	assertEquals("base=http://foo.test/fromMeta/tag/", alerts.get(0));
	}

	/**
	* Test the script base logic for an inlined selection script.
	*/
	public void testScriptBaseForInlined() throws IOException {
	StringBuilder hostPage = new StringBuilder();
	hostPage.append("<html><head>\n");
	hostPage.append("<script lang=\"javascript\"><!--\n");
	hostPage.append("var metaProps = { }\n");
	hostPage.append(loadComputeScriptBase());
	hostPage.append("alert('base='+base);\n");
	hostPage.append("--></script>\n");

	List<String> alerts = loadPage(hostPage.toString(), "");

	assertEquals(1, alerts.size());
	assertEquals("base=http://foo.test/", alerts.get(0));
	}

	/**
	* Test getting a the base URL from the HTML base tag
	*/
	public void testScriptBaseFromBaseTag() throws IOException {
	StringBuilder hostPage = new StringBuilder();
	hostPage.append("<html><head>\n");
	hostPage.append("<base href=\"http://static.test/fromBaseTag/\">\n");
	hostPage.append("<script lang=\"javascript\"><!--\n");
	hostPage.append("var metaProps = { }\n");
	hostPage.append(loadComputeScriptBase());
	hostPage.append("alert('base='+base);\n");
	hostPage.append("--></script>\n");

	List<String> alerts = loadPage(hostPage.toString(), "");

	assertEquals(1, alerts.size());
	assertEquals("base=http://static.test/fromBaseTag/", alerts.get(0));
	}

	/**
	* Test the script base logic for an inlined selection script.
	*/
	public void testNocacheJsTag() throws IOException {
	StringBuilder hostPage = new StringBuilder();
	hostPage.append("<html><head>\n");
	hostPage.append("<script lang='javascript' type='application/javascript' ");
	hostPage.append("src='from/nocache/__MODULE_NAME__.nocache.js'></script>\n");
	hostPage.append("<script lang=\"javascript\"><!--\n");
	hostPage.append("var metaProps = { }\n");
	hostPage.append(loadComputeScriptBase());
	hostPage.append("alert('base='+base);\n");
	hostPage.append("--></script>\n");

	List<String> alerts = loadPage(hostPage.toString(), "");

	assertEquals(1, alerts.size());
	assertEquals("base=http://foo.test/from/nocache/", alerts.get(0));
	}

	/**
	* Load a page and return all alerts that it generates.
	*/
	private List<String> loadPage(String hostPage, CharSequence testScript)
	throws FailingHttpStatusCodeException, MalformedURLException, IOException {
	WebClient webClient = new WebClient();

	// Make a mock web connection that can return the host page and the test
	// script
	MockWebConnection webConnection = new MockWebConnection();
	webConnection.setDefaultResponse(hostPage, "text/html");
	webConnection.setResponse(new URL(
	"http://foo.test/foo/test.Module.nocache.js"), testScript.toString(),
	"application/javascript");
	webConnection.setResponse(new URL(
	"http://foo.test/from/nocache/__MODULE_NAME__.nocache.js"),
	testScript.toString(),
	"application/javascript");
	webClient.setWebConnection(webConnection);

	final List<String> alerts = new ArrayList<String>();
	webClient.setAlertHandler(new AlertHandler() {
	@Override
	public void handleAlert(Page page, String msg) {
	alerts.add(msg);
	}
	});

	webClient.getPage("http://foo.test/");
	return alerts;
	}

	private String makeHostPage(CharSequence metas) {
	StringBuilder buf = new StringBuilder();
	buf.append("<html><head>\n");
	buf.append(metas);
	buf.append("<script src=\"/foo/test.Module.nocache.js\">\n");
	buf.append("</head></html>");
	return buf.toString();
	}
	}