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using System.CodeDom;
using System.CodeDom.Compiler;
using System.IO;
using System.Linq;
using System.Text;
using System.Web.Razor;
using System.Web.Razor.Generator;
using Microsoft.CSharp;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.WebPages.Razor.Test
{
public class WebPageRazorEngineHostTest
{
[Fact]
public void ConstructorRequiresNonNullOrEmptyVirtualPath()
{
Assert.ThrowsArgumentNullOrEmptyString(() => new WebPageRazorHost(null), "virtualPath");
Assert.ThrowsArgumentNullOrEmptyString(() => new WebPageRazorHost(String.Empty), "virtualPath");
Assert.ThrowsArgumentNullOrEmptyString(() => new WebPageRazorHost(null, "foo"), "virtualPath");
Assert.ThrowsArgumentNullOrEmptyString(() => new WebPageRazorHost(String.Empty, "foo"), "virtualPath");
}
[Fact]
public void ConstructorWithVirtualPathUsesItToDetermineBaseClassClassNameAndLanguage()
{
// Act
WebPageRazorHost host = new WebPageRazorHost("~/Foo/Bar.cshtml");
// Assert
Assert.Equal("_Page_Foo_Bar_cshtml", host.DefaultClassName);
Assert.Equal("System.Web.WebPages.WebPage", host.DefaultBaseClass);
Assert.IsType<CSharpRazorCodeLanguage>(host.CodeLanguage);
Assert.False(host.StaticHelpers);
}
[Fact]
public void PostProcessGeneratedCodeAddsGlobalImports()
{
// Arrange
WebPageRazorHost.AddGlobalImport("Foo.Bar");
WebPageRazorHost host = new WebPageRazorHost("Foo.cshtml");
CodeGeneratorContext context = CodeGeneratorContext.Create(
host,
() => new CSharpCodeWriter(),
"TestClass",
"TestNs",
"TestFile.cshtml",
shouldGenerateLinePragmas: true);
// Act
host.PostProcessGeneratedCode(context);
// Assert
Assert.True(context.Namespace.Imports.OfType<CodeNamespaceImport>().Any(import => String.Equals("Foo.Bar", import.Namespace)));
}
[Fact]
public void PostProcessGeneratedCodeAddsApplicationInstanceProperty()
{
const string expectedPropertyCode = @"
protected Foo.Bar ApplicationInstance {
get {
return ((Foo.Bar)(Context.ApplicationInstance));
}
}
";
// Arrange
WebPageRazorHost host = new WebPageRazorHost("Foo.cshtml")
{
GlobalAsaxTypeName = "Foo.Bar"
};
CodeGeneratorContext context = CodeGeneratorContext.Create(
host,
() => new CSharpCodeWriter(),
"TestClass",
"TestNs",
"TestFile.cshtml",
shouldGenerateLinePragmas: true);
// Act
host.PostProcessGeneratedCode(context);
// Assert
CodeMemberProperty property = context.GeneratedClass.Members[0] as CodeMemberProperty;
Assert.NotNull(property);
CSharpCodeProvider provider = new CSharpCodeProvider();
StringBuilder builder = new StringBuilder();
using (StringWriter writer = new StringWriter(builder))
{
provider.GenerateCodeFromMember(property, writer, new CodeGeneratorOptions());
}
Assert.Equal(expectedPropertyCode, builder.ToString());
}
}
}
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