public void AssemblyFileThatDoesNotExistIsGenerated()
{
var assemblyName = Guid.NewGuid().ToString("N");
var fileName = $"{assemblyName}.dll";
Assert.False(File.Exists(fileName));
#pragma warning disable S1481 // Unused local variables should be removed
var generatedCodeAssembly = new GeneratedCodeAssembly(builder =>
#pragma warning restore S1481 // Unused local variables should be removed
{
builder.WithAssemblyName(assemblyName)
.InCurrentDirectory()
.WithClass("TestClassActivator").InNamespace("PRI.Activators")
.ImplementsInterface <IActivator>()
.WithMethod("Create")
.WithReturnType(typeof(Customer))
.WithGenericParameter("T").CommitGenericParameter()
.WithGenericReturnType("T")
.WithInstruction(new UnaryInstruction(OpCodes.Newobj, typeof(Customer).GetConstructor(Type.EmptyTypes)))
.WithLocal(typeof(Customer))
.WithInstruction(new NullaryInstruction(OpCodes.Stloc_0))
.WithInstruction(new NullaryInstruction(OpCodes.Ldloc_0))
.WithInstruction(new NullaryInstruction(OpCodes.Ret))
.CommitMethod()
.CommitType().SaveAssembly();
});
Assert.True(File.Exists(fileName));
File.Delete(fileName);
}
public void GeneratedAssemblyFileCreatesInstance()
{
var assemblyName = Guid.NewGuid().ToString("N");
var fileName = $"{assemblyName}.dll";
Assert.False(File.Exists(fileName));
var generatedCodeAssembly = new GeneratedCodeAssembly(builder =>
{
builder.WithAssemblyName(assemblyName)
.InCurrentDirectory()
.WithClass("TestClassActivator").InNamespace("PRI.Activators")
.ImplementsInterface <IActivator>()
.WithMethod("Create")
.WithReturnType(typeof(Customer))
.WithGenericParameter("T").CommitGenericParameter()
.WithGenericReturnType("T")
.WithInstruction(new UnaryInstruction(OpCodes.Newobj, typeof(Customer)
.GetConstructor(Type.EmptyTypes)))
.WithLocal(typeof(Customer))
.WithInstruction(new NullaryInstruction(OpCodes.Stloc_0))
.WithInstruction(new NullaryInstruction(OpCodes.Ldloc_0))
.WithInstruction(new NullaryInstruction(OpCodes.Ret))
.CommitMethod()
.CommitType();
});
var activator = generatedCodeAssembly.CreateInstance <IActivator>("PRI.Activators.TestClassActivator");
Assert.NotNull(activator);
Assert.Equal("PRI.Activators.TestClassActivator", activator.GetType().FullName);
var testClass = activator.Create <Customer>();
Assert.NotNull(testClass);
Assert.IsType <Customer>(testClass);
Assert.True(File.Exists(fileName));
File.Delete(fileName);
}
