Files
acceptance-tests
data
debian
docs
external
Newtonsoft.Json
api-doc-tools
api-snapshot
aspnetwebstack
packages
src
test
Microsoft.TestCommon
Microsoft.Web.Helpers.Test
Microsoft.Web.Http.Data.Test
Microsoft.Web.Mvc.Test
Microsoft.Web.WebPages.OAuth.Test
SPA.Test
System.Json.Test.Integration
System.Json.Test.Unit
System.Net.Http.Formatting.Test.Integration
System.Net.Http.Formatting.Test.Unit
System.Web.Helpers.Test
System.Web.Http.Integration.Test
System.Web.Http.SelfHost.Test
System.Web.Http.Test
System.Web.Http.WebHost.Test
System.Web.Mvc.Test
Ajax
Async
ExpressionUtil
Test
BinaryExpressionFingerprintTest.cs
CachedExpressionCompilerTest.cs
ConditionalExpressionFingerprintTest.cs
ConstantExpressionFingerprintTest.cs
DefaultExpressionFingerprintTest.cs
DummyExpressionFingerprint.cs
ExpressionFingerprintTest.cs
FingerprintingExpressionVisitorTest.cs
HoistingExpressionVisitorTest.cs
IndexExpressionFingerprintTest.cs
LambdaExpressionFingerprintTest.cs
MemberExpressionFingerprintTest.cs
MethodCallExpressionFingerprintTest.cs
ParameterExpressionFingerprintTest.cs
TypeBinaryExpressionFingerprintTest.cs
UnaryExpressionFingerprintTest.cs
Html
Properties
Razor
Test
Util
System.Web.Mvc.Test.csproj
packages.config
System.Web.Razor.Test
System.Web.WebPages.Administration.Test
System.Web.WebPages.Deployment.Test
System.Web.WebPages.Razor.Test
System.Web.WebPages.Test
WebMatrix.Data.Test
WebMatrix.WebData.Test
Settings.StyleCop
tools
.gitattributes
.gitignore
License.txt
README.md
Runtime.msbuild
Runtime.sln
Runtime.xunit
Settings.StyleCop
build.cmd
binary-reference-assemblies
bockbuild
boringssl
cecil
cecil-legacy
corefx
corert
ikdasm
ikvm
linker
nuget-buildtasks
nunit-lite
roslyn-binaries
rx
xunit-binaries
ikvm-native
libgc
llvm
m4
man
mcs
mk
mono
msvc
po
runtime
samples
scripts
support
tools
COPYING.LIB
LICENSE
Makefile.am
Makefile.in
NEWS
README.md
acinclude.m4
aclocal.m4
autogen.sh
code_of_conduct.md
compile
config.guess
config.h.in
config.rpath
config.sub
configure.REMOVED.git-id
configure.ac.REMOVED.git-id
depcomp
install-sh
ltmain.sh.REMOVED.git-id
missing
mkinstalldirs
mono-uninstalled.pc.in
test-driver
winconfig.h
linux-packaging-mono/external/aspnetwebstack/test/System.Web.Mvc.Test/ExpressionUtil/Test/CachedExpressionCompilerTest.cs
Jo Shields a575963da9 Imported Upstream version 3.6.0
Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14
2014-08-13 10:39:27 +01:00

144 lines
4.5 KiB
C#

// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Linq.Expressions;
using System.Reflection;
using System.Text;
using Xunit;
namespace System.Web.Mvc.ExpressionUtil.Test
{
public class CachedExpressionCompilerTest
{
private delegate Func<TIn, TOut> Compiler<TIn, TOut>(Expression<Func<TIn, TOut>> expr);
[Fact]
public void Compiler_CompileFromConstLookup()
{
// Arrange
Expression<Func<string, int>> expr = model => 42;
var compiler = GetCompilerMethod<string, int>("CompileFromConstLookup");
// Act
var func = compiler(expr);
int result = func("any model");
// Assert
Assert.Equal(42, result);
}
[Fact]
public void Compiler_CompileFromFingerprint()
{
// Arrange
Expression<Func<string, int>> expr = s => 20 * s.Length;
var compiler = GetCompilerMethod<string, int>("CompileFromFingerprint");
// Act
var func = compiler(expr);
int result = func("hello");
// Assert
Assert.Equal(100, result);
}
[Fact]
public void Compiler_CompileFromIdentityFunc()
{
// Arrange
Expression<Func<string, string>> expr = model => model;
var compiler = GetCompilerMethod<string, string>("CompileFromIdentityFunc");
// Act
var func = compiler(expr);
string result = func("hello");
// Assert
Assert.Equal("hello", result);
}
[Fact]
public void Compiler_CompileFromMemberAccess_CapturedLocal()
{
// Arrange
string capturedLocal = "goodbye";
Expression<Func<string, string>> expr = _ => capturedLocal;
var compiler = GetCompilerMethod<string, string>("CompileFromMemberAccess");
// Act
var func = compiler(expr);
string result = func("hello");
// Assert
Assert.Equal("goodbye", result);
}
[Fact]
public void Compiler_CompileFromMemberAccess_ParameterInstanceMember()
{
// Arrange
Expression<Func<string, int>> expr = s => s.Length;
var compiler = GetCompilerMethod<string, int>("CompileFromMemberAccess");
// Act
var func = compiler(expr);
int result = func("hello");
// Assert
Assert.Equal(5, result);
}
[Fact]
public void Compiler_CompileFromMemberAccess_StaticMember()
{
// Arrange
Expression<Func<string, string>> expr = _ => String.Empty;
var compiler = GetCompilerMethod<string, string>("CompileFromMemberAccess");
// Act
var func = compiler(expr);
string result = func("hello");
// Assert
Assert.Equal("", result);
}
[Fact]
public void Compiler_CompileSlow()
{
// Arrange
Expression<Func<string, string>> expr = s => new StringBuilder(s).ToString();
var compiler = GetCompilerMethod<string, string>("CompileSlow");
// Act
var func = compiler(expr);
string result = func("hello");
// Assert
Assert.Equal("hello", result);
}
[Fact]
public void Process()
{
// Arrange
Expression<Func<string, string>> expr = s => new StringBuilder(s).ToString();
// Act
var func = CachedExpressionCompiler.Process(expr);
string result = func("hello");
// Assert
Assert.Equal("hello", result);
}
// helper to create a delegate to a private method on the compiler
private static Compiler<TIn, TOut> GetCompilerMethod<TIn, TOut>(string methodName)
{
Type openCompilerType = typeof(CachedExpressionCompiler).GetNestedType("Compiler`2", BindingFlags.NonPublic);
Type closedCompilerType = openCompilerType.MakeGenericType(typeof(TIn), typeof(TOut));
MethodInfo targetMethod = closedCompilerType.GetMethod(methodName, BindingFlags.Static | BindingFlags.NonPublic);
return (Compiler<TIn, TOut>)Delegate.CreateDelegate(typeof(Compiler<TIn, TOut>), targetMethod);
}
}
}