test: Add an idl testcase

test/idltest.c

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2020 Martin Storsjo
+ *
+ * This file is part of llvm-mingw.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <windows.h>
+#include <initguid.h>
+#define COBJMACROS
+#include "idltest.h"
+
+int main(int argc, char *argv[]) {
+    if (argc <= 1)
+        return 0;
+
+    ITestClass *obj;
+    CoInitializeEx(NULL, COINIT_MULTITHREADED);
+    if (CoCreateInstance(&CLSID_TestClassImplementation, 0, CLSCTX_INPROC, &IID_ITestClass, (void*)&obj))
+        return 0;
+    ITestClass_DoSomething(obj, 0);
+    ITestClass_Release(obj);
+    return 0;
+}