Added a few tests

test/src/test/java/hudson/PluginManagerInstalledGUITest.java

+/*
+ * The MIT License
+ *
+ * Copyright (c) 2015, CloudBees, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package hudson;
+
+import com.gargoylesoftware.htmlunit.html.DomElement;
+import com.gargoylesoftware.htmlunit.html.HtmlElement;
+import com.gargoylesoftware.htmlunit.html.HtmlElementUtil;
+import com.gargoylesoftware.htmlunit.html.HtmlInput;
+import com.gargoylesoftware.htmlunit.html.HtmlPage;
+import com.gargoylesoftware.htmlunit.html.HtmlTableRow;
+import org.junit.Assert;
+import org.junit.Rule;
+import org.junit.Test;
+import org.jvnet.hudson.test.JenkinsRule;
+import org.jvnet.hudson.test.recipes.WithPlugin;
+import org.xml.sax.SAXException;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * @author <a href="mailto:tom.fennelly@gmail.com">tom.fennelly@gmail.com</a>
+ */
+public class PluginManagerInstalledGUITest {
+
+    @Rule
+    public JenkinsRule jenkinsRule = new JenkinsRule();
+    
+    @Test
+    @WithPlugin("tasks.jpi")
+    public void test_enable_disable_uninstall() throws IOException, SAXException {
+        InstalledPlugins installedPlugins = new InstalledPlugins();
+        
+        InstalledPlugin tasksPlugin = installedPlugins.get("tasks");
+        InstalledPlugin cvsPlugin = installedPlugins.get("cvs");
+
+        tasksPlugin.assertHasNoDependants();
+        cvsPlugin.assertHasDependants();
+        
+        // Tasks plugin should be enabled and it should be possible to disable it
+        // because no other plugins depend on it.
+        tasksPlugin.assertEnabled();
+        tasksPlugin.assertEnabledStateChangeable();
+        tasksPlugin.assertUninstallable();
+        
+        // CVS plugin should be enabled, but it should not be possible to disable or uninstall it
+        // because the tasks plugin depends on it.
+        cvsPlugin.assertEnabled();
+        cvsPlugin.assertEnabledStateNotChangeable();
+        cvsPlugin.assertNotUninstallable();
+        
+        // Disable the tasks plugin
+        tasksPlugin.clickEnabledWidget();
+                
+        // Now the tasks plugin should be disabled, but it should be possible to re-enable it 
+        // and it should still be uninstallable.
+        tasksPlugin.assertNotEnabled(); // this is different to earlier
+        tasksPlugin.assertEnabledStateChangeable();
+        tasksPlugin.assertUninstallable();
+                
+        // The CVS plugin should still be enabled, but it should now be possible to disable it because
+        // the tasks plugin is no longer enabled. Should still not be possible to uninstall it.
+        cvsPlugin.assertEnabled();
+        cvsPlugin.assertEnabledStateChangeable(); // this is different to earlier
+        cvsPlugin.assertNotUninstallable();
+        
+        // Disable the cvs plugin
+        cvsPlugin.clickEnabledWidget();
+        
+        // Now it should NOT be possible to change the enable state of the tasks plugin because one
+        // of the plugins it depends on (the CVS plugin) is not enabled.
+        tasksPlugin.assertNotEnabled();
+        tasksPlugin.assertEnabledStateNotChangeable();  // this is different to earlier
+        tasksPlugin.assertUninstallable();
+    }
+    
+    private class InstalledPlugins {
+        
+        private final List<InstalledPlugin> installedPlugins;
+
+        private InstalledPlugins () throws IOException, SAXException {
+            JenkinsRule.WebClient webClient = jenkinsRule.createWebClient();
+            HtmlPage installedPage = webClient.goTo("pluginManager/installed");
+//            System.out.println(installedPage);
+//            try {
+//                Thread.sleep(10000000000L);
+//            } catch (InterruptedException e) { e.printStackTrace(); }
+
+            DomElement pluginsTable = installedPage.getElementById("plugins");
+            HtmlElement tbody = pluginsTable.getElementsByTagName("TBODY").get(0);
+            
+            installedPlugins = new ArrayList<>();
+            for (DomElement htmlTableRow : tbody.getChildElements()) {
+                installedPlugins.add(new InstalledPlugin((HtmlTableRow) htmlTableRow));
+            }
+        }
+
+        public InstalledPlugin get(String pluginId) {
+            for (InstalledPlugin plugin : installedPlugins) {
+                if (plugin.isPlugin(pluginId)) {
+                    return plugin;
+                }
+            }
+            Assert.fail("Now pluginManager/installed row for plugin " + pluginId);
+            return null;
+        }
+
+    }
+
+    private class InstalledPlugin {
+
+        private final HtmlTableRow pluginRow;
+
+        public InstalledPlugin(HtmlTableRow pluginRow) {
+            this.pluginRow = pluginRow;
+        }
+        
+        public String getId() {
+            return pluginRow.getAttribute("data-plugin-id");
+        }
+        
+        public boolean isPlugin(String pluginId) {
+            return pluginId.equals(getId());
+        }
+        
+        private HtmlInput getEnableWidget() {
+            HtmlElement input = pluginRow.getCells().get(0).getElementsByTagName("input").get(0);
+            return (HtmlInput) input;
+        }
+
+        public void assertEnabled() {
+            HtmlInput enableWidget = getEnableWidget();
+            Assert.assertTrue("Plugin '" + getId() + "' is expected to be enabled.", enableWidget.isChecked());
+        }
+
+        public void assertNotEnabled() {
+            HtmlInput enableWidget = getEnableWidget();
+            Assert.assertFalse("Plugin '" + getId() + "' is not expected to be enabled.", enableWidget.isChecked());
+        }
+
+        public void clickEnabledWidget() throws IOException {
+            HtmlInput enableWidget = getEnableWidget();
+            HtmlElementUtil.click(enableWidget);
+        }
+
+        public void assertEnabledStateChangeable() {
+            if (!hasDependants() && !hasDisabledDependency() && !allDependantsDisabled()) {
+                return;
+            }
+            if (allDependantsDisabled() && !hasDisabledDependency()) {
+                return;
+            }
+            
+            Assert.fail("The enable/disable state of plugin '" + getId() + "' cannot be changed.");
+        }
+
+        public void assertEnabledStateNotChangeable() {
+            if (hasDependants() && !hasDisabledDependency() && !allDependantsDisabled()) {
+                return;
+            }
+            if (!hasDependants() && hasDisabledDependency()) {
+                return;
+            }
+            
+            Assert.fail("The enable/disable state of plugin '" + getId() + "' cannot be changed.");
+        }
+
+        public void assertUninstallable() {
+            Assert.assertFalse("Plugin '" + getId() + "' cannot be uninstalled.", hasDependants());
+        }
+
+        public void assertNotUninstallable() {
+            Assert.assertTrue("Plugin '" + getId() + "' can be uninstalled.", hasDependants());
+        }
+
+        public void assertHasDependants() {
+            Assert.assertTrue(hasDependants());
+        }
+
+        public void assertHasNoDependants() {
+            Assert.assertFalse(hasDependants());
+        }
+
+        private boolean hasClassName(String className) {
+            String classAttribute = pluginRow.getAttribute("class");
+            Set<String> classes = new HashSet<>(Arrays.asList(classAttribute.split(" ")));
+            return classes.contains(className);
+        }
+
+        private boolean hasDisabledDependency() {
+            return hasClassName("has-disabled-dependency");
+        }
+
+        private boolean allDependantsDisabled() {
+            return hasClassName("all-dependants-disabled");
+        }
+
+        private boolean hasDependants() {
+            return hasClassName("has-dependants");
+        }
+    }
+}