public void Loadall_Should_LoadAssembliesOnlyOnce()
{
string nameOfa1 = "A1";
string nameOfa2 = "A2";
var twoAssemblyNames = new[]
{
new AssemblyName(nameOfa1),
new AssemblyName(nameOfa2),
};
var assemblyUtilMock = new Mock <IAssemblyUtils>();
IAssembly a1 = CreateAssemblyMock("L1", nameOfa1).Object;
var a2Mock = CreateAssemblyMock("L2", nameOfa2);
a2Mock.Setup(a => a.GetReferencedAssemblies()).Returns(twoAssemblyNames);
IAssembly a2 = a2Mock.Object;
assemblyUtilMock.Setup(u => u.Load(a1.FullName)).Returns(a1);
assemblyUtilMock.Setup(u => u.Load(a2.FullName)).Returns(a2);
assemblyUtilMock.Setup(u => u.FileExists("filenameOfA1")).Returns(true);
assemblyUtilMock.Setup(u => u.GetAssemblyNameInDirectory("AssemblyPath", a1.FullName)).Returns("filenameOfA1");
assemblyUtilMock.Setup(u => u.LoadFrom("filenameOfA1")).Returns(a1);
var sut = new AssemblyReader(assemblyUtilMock.Object);
sut.AssemblyPath = "AssemblyPath";
var assemblyMock = CreateAssemblyMock("Location", "Assembly");
var assembly = assemblyMock.Object;
assemblyUtilMock.Setup(a => a.LoadFrom(assembly.Location)).Returns(assemblyMock.Object);
assemblyMock.Setup(a => a.GetReferencedAssemblies()).Returns(twoAssemblyNames);
sut.Loadall(assembly);
sut.Loadall(assembly);
assemblyUtilMock.Verify(u => u.LoadFrom(assembly.Location), Times.Once);
assemblyUtilMock.Verify(u => u.Load(a1.FullName), Times.Never);
assemblyUtilMock.Verify(u => u.LoadFrom("filenameOfA1"), Times.Once);
assemblyUtilMock.Verify(u => u.Load(a2.FullName), Times.Once);
}
