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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System;
using System.Collections.Generic;
using System.Web.Hosting;
using System.Web.WebPages.Scope;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace Microsoft.Web.Helpers.Test
{
public class ThemesTest
{
[Fact]
public void Initialize_WithBadParams_Throws()
{
// Arrange
var mockVpp = new Mock<VirtualPathProvider>().Object;
var scope = new ScopeStorageDictionary();
// Act and Assert
Assert.ThrowsArgumentNullOrEmptyString(() => new ThemesImplementation(mockVpp, scope).Initialize(null, "foo"), "themeDirectory");
Assert.ThrowsArgumentNullOrEmptyString(() => new ThemesImplementation(mockVpp, scope).Initialize("", "foo"), "themeDirectory");
Assert.ThrowsArgumentNullOrEmptyString(() => new ThemesImplementation(mockVpp, scope).Initialize("~/folder", null), "defaultTheme");
Assert.ThrowsArgumentNullOrEmptyString(() => new ThemesImplementation(mockVpp, scope).Initialize("~/folder", ""), "defaultTheme");
}
[Fact]
public void CurrentThemeThrowsIfAssignedNullOrEmpty()
{
// Arrange
var mockVpp = new Mock<VirtualPathProvider>().Object;
var scope = new ScopeStorageDictionary();
var themesImpl = new ThemesImplementation(mockVpp, scope);
// Act and Assert
Assert.ThrowsArgumentNullOrEmptyString(() => { themesImpl.CurrentTheme = null; }, "value");
Assert.ThrowsArgumentNullOrEmptyString(() => { themesImpl.CurrentTheme = String.Empty; }, "value");
}
[Fact]
public void InvokingPropertiesAndMethodsBeforeInitializationThrows()
{
// Arrange
var mockVpp = new Mock<VirtualPathProvider>().Object;
var scope = new ScopeStorageDictionary();
var themesImpl = new ThemesImplementation(mockVpp, scope);
// Act and Assert
Assert.Throws<InvalidOperationException>(() => themesImpl.CurrentTheme = "Foo",
@"You must call the ""Themes.Initialize"" method before you call any other method of the ""Themes"" class.");
Assert.Throws<InvalidOperationException>(() => { var x = themesImpl.CurrentTheme; },
@"You must call the ""Themes.Initialize"" method before you call any other method of the ""Themes"" class.");
Assert.Throws<InvalidOperationException>(() => { var x = themesImpl.AvailableThemes; },
@"You must call the ""Themes.Initialize"" method before you call any other method of the ""Themes"" class.");
Assert.Throws<InvalidOperationException>(() => { var x = themesImpl.DefaultTheme; },
@"You must call the ""Themes.Initialize"" method before you call any other method of the ""Themes"" class.");
Assert.Throws<InvalidOperationException>(() => { var x = themesImpl.GetResourcePath("baz"); },
@"You must call the ""Themes.Initialize"" method before you call any other method of the ""Themes"" class.");
Assert.Throws<InvalidOperationException>(() => { var x = themesImpl.GetResourcePath("baz", "some-file"); },
@"You must call the ""Themes.Initialize"" method before you call any other method of the ""Themes"" class.");
}
[Fact]
public void InitializeThrowsIfDefaultThemeDirectoryDoesNotExist()
{
// Arrange
var defaultTheme = "default-theme";
var themeDirectory = "theme-directory";
var scope = new ScopeStorageDictionary();
var themesImpl = new ThemesImplementation(GetVirtualPathProvider(themeDirectory, new Dir("not-default-theme")), scope);
// Act And Assert
Assert.ThrowsArgument(
() => themesImpl.Initialize(themeDirectory: themeDirectory, defaultTheme: defaultTheme),
"defaultTheme",
"Unknown theme 'default-theme'. Ensure that a directory labeled 'default-theme' exists under the theme directory.");
}
[Fact]
public void ThemesImplUsesScopeStorageToStoreProperties()
{
// Arrange
var defaultTheme = "default-theme";
var themeDirectory = "theme-directory";
var scope = new ScopeStorageDictionary();
var themesImpl = new ThemesImplementation(GetVirtualPathProvider(themeDirectory, new Dir(defaultTheme)), scope);
// Act
themesImpl.Initialize(themeDirectory: themeDirectory, defaultTheme: defaultTheme);
// Ensure Theme use scope storage to store properties
Assert.Equal(scope[ThemesImplementation.ThemesInitializedKey], true);
Assert.Equal(scope[ThemesImplementation.ThemeDirectoryKey], themeDirectory);
Assert.Equal(scope[ThemesImplementation.DefaultThemeKey], defaultTheme);
}
[Fact]
public void ThemesImplUsesDefaultThemeWhenNoCurrentThemeIsSpecified()
{
// Arrange
var defaultTheme = "default-theme";
var themeDirectory = "theme-directory";
var scope = new ScopeStorageDictionary();
var themesImpl = new ThemesImplementation(GetVirtualPathProvider(themeDirectory, new Dir(defaultTheme)), scope);
themesImpl.Initialize(themeDirectory, defaultTheme);
// Act and Assert
// CurrentTheme falls back to default theme when null
Assert.Equal(themesImpl.CurrentTheme, defaultTheme);
}
[Fact]
public void ThemesImplThrowsIfCurrentThemeIsInvalid()
{
// Arrange
var defaultTheme = "default-theme";
var themeDirectory = "theme-directory";
var themesImpl = new ThemesImplementation(GetVirtualPathProvider(themeDirectory, new Dir(defaultTheme), new Dir("not-a-random-value")), new ScopeStorageDictionary());
themesImpl.Initialize(themeDirectory, defaultTheme);
// Act and Assert
Assert.ThrowsArgument(() => themesImpl.CurrentTheme = "random-value",
"value",
"Unknown theme 'random-value'. Ensure that a directory labeled 'random-value' exists under the theme directory.");
}
[Fact]
public void ThemesImplUsesScopeStorageToStoreCurrentTheme()
{
// Arrange
var defaultTheme = "default-theme";
var themeDirectory = "theme-directory";
var currentThemeDir = "custom-theme-dir";
var scope = new ScopeStorageDictionary();
var themesImpl = new ThemesImplementation(GetVirtualPathProvider(themeDirectory, new Dir(defaultTheme), new Dir("custom-theme-dir")), scope);
// Act
themesImpl.Initialize(themeDirectory, defaultTheme);
themesImpl.CurrentTheme = currentThemeDir;
// Assert
Assert.Equal(scope[ThemesImplementation.CurrentThemeKey], currentThemeDir);
}
[Fact]
public void GetResourcePathThrowsIfCurrentDirectoryIsNull()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("mobile"), new Dir(@"mobile", "wp7.css")));
themesImpl.Initialize("themes", "default");
// Act and Assert
Assert.ThrowsArgumentNull(() => themesImpl.GetResourcePath(folder: null, fileName: "wp7.css"), "folder");
}
[Fact]
public void GetResourcePathThrowsIfFileNameIsNullOrEmpty()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("mobile"), new Dir(@"mobile", "wp7.css")));
themesImpl.Initialize("themes", "default");
// Act and Assert
Assert.ThrowsArgumentNullOrEmptyString(() => themesImpl.GetResourcePath(folder: String.Empty, fileName: null), "fileName");
Assert.ThrowsArgumentNullOrEmptyString(() => themesImpl.GetResourcePath(folder: String.Empty, fileName: String.Empty), "fileName");
}
[Fact]
public void GetResourcePathReturnsItemFromThemeRootIfAvailable()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("mobile"), new Dir(@"mobile", "wp7.css")));
themesImpl.Initialize("themes", "default");
// Act
themesImpl.CurrentTheme = "mobile";
var themePath = themesImpl.GetResourcePath(fileName: "wp7.css");
// Assert
Assert.Equal(themePath, @"themes/mobile/wp7.css");
}
[Fact]
public void GetResourcePathReturnsItemFromCurrentThemeDirectoryIfAvailable()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("mobile"), new Dir(@"mobile\styles", "wp7.css"), new Dir(@"default\styles", "main.css")));
themesImpl.Initialize("themes", "default");
// Act
themesImpl.CurrentTheme = "mobile";
var themePath = themesImpl.GetResourcePath(folder: "styles", fileName: "wp7.css");
// Assert
Assert.Equal(themePath, @"themes/mobile/styles/wp7.css");
}
[Fact]
public void GetResourcePathReturnsItemFromDefaultThemeDirectoryIfNotFoundInCurrentThemeDirectory()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("mobile"), new Dir(@"mobile\styles", "wp7.css"), new Dir(@"default\styles", "main.css")));
themesImpl.Initialize("themes", "default");
// Act
themesImpl.CurrentTheme = "mobile";
var themePath = themesImpl.GetResourcePath(folder: "styles", fileName: "main.css");
// Assert
Assert.Equal(themePath, @"themes/default/styles/main.css");
}
[Fact]
public void GetResourcePathReturnsNullIfDirectoryDoesNotExist()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("mobile"), new Dir(@"mobile\styles", "wp7.css"), new Dir(@"default\styles", "main.css")));
themesImpl.Initialize("themes", "default");
// Act
themesImpl.CurrentTheme = "mobile";
var themePath = themesImpl.GetResourcePath(folder: "does-not-exist", fileName: "main.css");
// Assert
Assert.Null(themePath);
}
[Fact]
public void GetResourcePathReturnsNullIfItemNotFoundInCurrentAndDefaultThemeDirectories()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("mobile"), new Dir(@"mobile\styles", "wp7.css"), new Dir(@"default\styles", "main.css")));
themesImpl.Initialize("themes", "default");
// Act
themesImpl.CurrentTheme = "mobile";
var themePath = themesImpl.GetResourcePath(folder: "styles", fileName: "awesome-blinking-text.css");
// Assert
Assert.Null(themePath);
}
[Fact]
public void AvaliableThemesReturnsTopLevelDirectoriesUnderThemeDirectory()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("mobile"), new Dir("rotary-phone")));
// Act
themesImpl.Initialize("themes", "default");
var themes = themesImpl.AvailableThemes;
// Assert
Assert.Equal(3, themes.Count);
Assert.Equal(themes[0], "default");
Assert.Equal(themes[1], "mobile");
Assert.Equal(themes[2], "rotary-phone");
}
/// <remarks>
/// // folder structure:
/// // /root
/// // /foo
/// // /bar.cs
/// // testing that a file specified as foo/bar in folder root will return null
/// </remarks>
[Fact]
public void FileWithSlash_ReturnsNull()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("root"), new Dir(@"root\foo", "wp7.css"), new Dir(@"default\styles", "main.css")));
// Act
var actual = themesImpl.FindMatchingFile("root", "foo/bar.cs");
// Assert
Assert.Null(actual);
}
[Fact]
public void DirectoryWithNoFilesReturnsNull()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir("default"), new Dir("empty-dir")));
// Act
var actual = themesImpl.FindMatchingFile(@"themes\empty-dir", "main.css");
// Assert
Assert.Null(actual);
}
[Fact]
public void MatchingFiles_ReturnsCorrectFile()
{
// Arrange
var themesImpl = new ThemesImplementation(scopeStorage: new ScopeStorageDictionary(),
vpp: GetVirtualPathProvider("themes", new Dir(@"nomatchingfiles", "foo.cs")));
// Act
var bar = themesImpl.FindMatchingFile(@"themes\nomatchingfiles", "bar.cs");
var foo = themesImpl.FindMatchingFile(@"themes\nomatchingfiles", "foo.cs");
// Assert
Assert.Null(bar);
Assert.Equal(@"themes/nomatchingfiles/foo.cs", foo);
}
private static VirtualPathProvider GetVirtualPathProvider(string themeRoot, params Dir[] fileSystem)
{
var mockVpp = new Mock<VirtualPathProvider>();
var dirRoot = new Mock<VirtualDirectory>(themeRoot);
var themeDirectories = new List<VirtualDirectory>();
foreach (var directory in fileSystem)
{
var dir = new Mock<VirtualDirectory>(directory.Name);
var directoryPath = themeRoot + '\\' + directory.Name;
dir.SetupGet(d => d.Name).Returns(directory.Name);
mockVpp.Setup(c => c.GetDirectory(It.Is<string>(p => p.Equals(directoryPath, StringComparison.OrdinalIgnoreCase)))).Returns(dir.Object);
var fileList = new List<VirtualFile>();
foreach (var item in directory.Files)
{
var filePath = directoryPath + '\\' + item;
var file = new Mock<VirtualFile>(filePath);
file.SetupGet(f => f.Name).Returns(item);
fileList.Add(file.Object);
}
dir.SetupGet(c => c.Files).Returns(fileList);
themeDirectories.Add(dir.Object);
}
dirRoot.SetupGet(c => c.Directories).Returns(themeDirectories);
mockVpp.Setup(c => c.GetDirectory(themeRoot)).Returns(dirRoot.Object);
return mockVpp.Object;
}
private class Dir
{
public Dir(string name, params string[] files)
{
Name = name;
Files = files;
}
public string Name { get; private set; }
public IEnumerable<string> Files { get; private set; }
}
}
}
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