public void InvokesEntrypoint_Async_Exception()
{
// Arrange
var assembly = CompileToAssembly(@"
public static TaskCompletionSource<object> ContinueTcs { get; } = new TaskCompletionSource<object>();
public static async Task Main()
{
await ContinueTcs.Task;
DidMainExecute = true;
throw new InvalidTimeZoneException(""Test message"");
}", out var didMainExecute);
// Act/Assert 1: Waits for task
EntrypointInvoker.InvokeEntrypoint(assembly.FullName, new string[] { });
Assert.False(didMainExecute());
// Act/Assert 2: Continues
// As above, we can't directly observe the exception handling behavior here,
// so this is covered in E2E tests instead.
var tcs = (TaskCompletionSource <object>)assembly.GetType("SomeApp.Program").GetProperty("ContinueTcs").GetValue(null);
tcs.SetResult(null);
Assert.True(didMainExecute());
}
public void InvokesEntrypoint_Async_Success(bool hasReturnValue, bool hasParams)
{
// Arrange
var returnTypeGenericParam = hasReturnValue ? "<int>" : string.Empty;
var paramsDecl = hasParams ? "string[] args" : string.Empty;
var returnStatement = hasReturnValue ? "return 123;" : "return;";
var assembly = CompileToAssembly(@"
public static TaskCompletionSource<object> ContinueTcs { get; } = new TaskCompletionSource<object>();
static async Task" + returnTypeGenericParam + @" Main(" + paramsDecl + @")
{
await ContinueTcs.Task;
DidMainExecute = true;
" + returnStatement + @"
}", out var didMainExecute);
// Act/Assert 1: Waits for task
// The fact that we're not blocking here proves that we're not executing the
// metadata-declared entrypoint, as that would block
EntrypointInvoker.InvokeEntrypoint(assembly.FullName, new string[] { });
Assert.False(didMainExecute());
// Act/Assert 2: Continues
var tcs = (TaskCompletionSource <object>)assembly.GetType("SomeApp.Program").GetProperty("ContinueTcs").GetValue(null);
tcs.SetResult(null);
Assert.True(didMainExecute());
}
public void InvokesEntrypoint_Sync_Exception()
{
// Arrange
var assembly = CompileToAssembly(@"
public static void Main()
{
DidMainExecute = true;
throw new InvalidTimeZoneException(""Test message"");
}", out var didMainExecute);
// Act/Assert
// The fact that this doesn't throw shows that EntrypointInvoker is doing something
// to handle the exception. We can't assert about what it does here, because that
// would involve capturing console output, which isn't safe in unit tests. Instead
// we'll check this in E2E tests.
EntrypointInvoker.InvokeEntrypoint(assembly.FullName, new string[] { });
Assert.True(didMainExecute());
}
public void InvokesEntrypoint_Sync_Success(bool hasReturnValue, bool hasParams)
{
// Arrange
var returnType = hasReturnValue ? "int" : "void";
var paramsDecl = hasParams ? "string[] args" : string.Empty;
var returnStatement = hasReturnValue ? "return 123;" : "return;";
var assembly = CompileToAssembly(@"
static " + returnType + @" Main(" + paramsDecl + @")
{
DidMainExecute = true;
" + returnStatement + @"
}", out var didMainExecute);
// Act
EntrypointInvoker.InvokeEntrypoint(assembly.FullName, new string[] { });
// Assert
Assert.True(didMainExecute());
}