[Test] public void DuplicateLoad()
{
using (MockPluginLoader pluginLoader = new MockPluginLoader())
{
MockAssembly[] mockPlugins = new MockAssembly[]
{
new MockAssembly("MockDir/MockPluginA.dll", typeof(MockPlugin)),
new MockAssembly("MockDir/MockPluginB.dll", typeof(MockPlugin)),
new MockAssembly("MockDir/MockPluginC.dll", typeof(MockPlugin))
};
// Set up some mock data for available assemblies
pluginLoader.AddBaseDir("MockDir");
for (int i = 0; i < mockPlugins.Length; i++)
{
pluginLoader.AddPlugin(mockPlugins[i]);
}
// Set up a plugin manager using the mock loader
MockPluginManager pluginManager = new MockPluginManager();
pluginManager.Init(pluginLoader);
// Load and init all plugins
pluginManager.LoadPlugins();
pluginManager.InitPlugins();
// Now load them again
pluginManager.LoadPlugins();
// Assert that we do not have any duplicates and no disposed plugins
Assert.AreEqual(3, pluginManager.LoadedPlugins.Count());
Assert.IsEmpty(pluginManager.DisposedPlugins);
// Assert that we did not load any assembly twice
Assert.AreEqual(3, pluginLoader.LoadedAssemblies.Count());
// Let's try loading assembly duplicates manually
for (int i = 0; i < mockPlugins.Length; i++)
{
MockPlugin plugin = pluginManager.LoadPlugin(mockPlugins[i], mockPlugins[i].Location);
Assert.IsNotNull(plugin);
}
// Assert that we do not have any duplicates and no disposed plugins
Assert.AreEqual(3, pluginManager.LoadedPlugins.Count());
Assert.IsEmpty(pluginManager.DisposedPlugins);
// Assert that we did not load any assembly twice
Assert.AreEqual(3, pluginLoader.LoadedAssemblies.Count());
pluginManager.Terminate();
}
}
[Test] public void LockedPlugin()
{
using (MockPluginLoader pluginLoader = new MockPluginLoader())
{
// Set up some mock data for available assemblies
MockAssembly lockedAssembly = new MockAssembly("MockDir/MockPluginA.dll", typeof(MockPlugin));
pluginLoader.AddBaseDir("MockDir");
pluginLoader.AddPlugin(lockedAssembly);
pluginLoader.AddPlugin(new MockAssembly("MockDir/MockPluginB.dll", typeof(MockPlugin)));
pluginLoader.AddPlugin(new MockAssembly("MockDir/MockPluginC.dll", typeof(MockPlugin)));
// Set up a plugin manager using the mock loader
MockPluginManager pluginManager = new MockPluginManager();
pluginManager.Init(pluginLoader);
// Load and init all plugins
pluginManager.LoadPlugins();
pluginManager.InitPlugins();
// Register event handler to check if all events are fired as expected
HashSet <MockPlugin> firedPluginRemoving = new HashSet <MockPlugin>();
HashSet <MockPlugin> firedPluginRemoved = new HashSet <MockPlugin>();
pluginManager.PluginsRemoving += (sender, args) =>
{
foreach (MockPlugin plugin in args.Plugins)
{
firedPluginRemoving.Add(plugin);
}
};
pluginManager.PluginsRemoved += (sender, args) =>
{
foreach (MockPlugin plugin in args.Plugins)
{
firedPluginRemoved.Add(plugin);
}
};
// Lock the plugin we're about to reload
pluginManager.LockPlugin(lockedAssembly);
// Attempt to reload the plugin that was locked
MockPlugin reloadedPlugin = pluginManager.ReloadPlugin(lockedAssembly.Location);
// Assert that nothing has changed and the reload attempt was rejected
Assert.IsNull(reloadedPlugin);
CollectionAssert.Contains(pluginManager.LoadedPlugins.Select(p => p.PluginAssembly), lockedAssembly);
CollectionAssert.DoesNotContain(firedPluginRemoving.Select(p => p.PluginAssembly), lockedAssembly);
CollectionAssert.DoesNotContain(firedPluginRemoved.Select(p => p.PluginAssembly), lockedAssembly);
pluginManager.Terminate();
}
}
private Assembly MockPlugin_MapToAssemblyCallback(MockPlugin mockPlugin)
{
// We'll just map the newly instantiated plugin to any of the assemblies
// we're mock-providing, except the ones that are already mapped
Assembly assembly;
if (!this.pluginMap.TryGetValue(mockPlugin, out assembly))
{
assembly = this.assemblyMap
.Where(pair => !this.pluginMap.ContainsValue(pair.Value))
.Select(pair => pair.Value)
.FirstOrDefault();
this.pluginMap.Add(mockPlugin, assembly);
}
return(assembly);
}
[Test] public void ReloadPlugin()
{
using (MockPluginLoader pluginLoader = new MockPluginLoader())
{
// Set up some mock data for available assemblies
MockAssembly oldAssembly = new MockAssembly("MockDir/MockPluginA.dll", typeof(MockPlugin));
MockAssembly newAssembly = new MockAssembly("MockDir/MockPluginA.dll", typeof(MockPlugin));
pluginLoader.AddBaseDir("MockDir");
pluginLoader.AddPlugin(oldAssembly);
pluginLoader.AddPlugin(new MockAssembly("MockDir/MockPluginB.dll", typeof(MockPlugin)));
pluginLoader.AddPlugin(new MockAssembly("MockDir/MockPluginC.dll", typeof(MockPlugin)));
// Set up a plugin manager using the mock loader
MockPluginManager pluginManager = new MockPluginManager();
pluginManager.Init(pluginLoader);
// Load and init all plugins
pluginManager.LoadPlugins();
pluginManager.InitPlugins();
// Register event handler to check if all events are fired as expected
HashSet <MockPlugin> firedPluginReady = new HashSet <MockPlugin>();
HashSet <MockPlugin> firedPluginRemoving = new HashSet <MockPlugin>();
HashSet <MockPlugin> firedPluginRemoved = new HashSet <MockPlugin>();
pluginManager.PluginsReady += (sender, args) =>
{
foreach (MockPlugin plugin in args.Plugins)
{
firedPluginReady.Add(plugin);
}
};
pluginManager.PluginsRemoving += (sender, args) =>
{
foreach (MockPlugin plugin in args.Plugins)
{
firedPluginRemoving.Add(plugin);
}
};
pluginManager.PluginsRemoved += (sender, args) =>
{
foreach (MockPlugin plugin in args.Plugins)
{
firedPluginRemoved.Add(plugin);
}
};
// Silently replace one of the assemblies
pluginLoader.ReplacePlugin(oldAssembly, newAssembly);
// Reload the plugin that was replaced
MockPlugin reloadedPlugin = pluginManager.ReloadPlugin(oldAssembly.Location) as MockPlugin;
// Assert that we got back the new plugin, while the old one is now disposed
Assert.IsNotNull(reloadedPlugin);
Assert.AreSame(newAssembly, reloadedPlugin.PluginAssembly);
CollectionAssert.Contains(pluginManager.LoadedPlugins.Select(p => p.PluginAssembly), newAssembly);
CollectionAssert.Contains(pluginManager.DisposedPlugins, oldAssembly);
CollectionAssert.DoesNotContain(pluginManager.LoadedPlugins.Select(p => p.PluginAssembly), oldAssembly);
CollectionAssert.DoesNotContain(pluginManager.DisposedPlugins, newAssembly);
CollectionAssert.Contains(firedPluginRemoving.Select(p => p.PluginAssembly), oldAssembly);
CollectionAssert.Contains(firedPluginRemoved.Select(p => p.PluginAssembly), oldAssembly);
// Assert that the reloaded plugin is not yet initialized.
// That's not what the API is supposed to do.
Assert.IsFalse(reloadedPlugin.Initialized);
CollectionAssert.DoesNotContain(firedPluginReady, newAssembly);
pluginManager.Terminate();
}
}
private Assembly MockPlugin_MapToAssemblyCallback(MockPlugin mockPlugin)
{
// We'll just map the newly instantiated plugin to any of the assemblies
// we're mock-providing, except the ones that are already mapped
Assembly assembly;
if (!this.pluginMap.TryGetValue(mockPlugin, out assembly))
{
assembly = this.assemblyMap
.Where(pair => !this.pluginMap.ContainsValue(pair.Value))
.Select(pair => pair.Value)
.FirstOrDefault();
this.pluginMap.Add(mockPlugin, assembly);
}
return assembly;
}