Add some sample test codes to allow unit testing.

Author: karalabe

tests/embedded_c/main.go

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+// Go cross compiler (xgo): Test file for embedded C snippets.
+// Copyright (c) 2015 Péter Szilágyi. All rights reserved.
+//
+// Released under the MIT license.
+
+package main
+
+// #include <stdio.h>
+//
+// void sayHi() {
+//   printf("Hello, embedded C!\n");
+// }
+import "C"
+
+func main() {
+	C.sayHi()
+}

tests/embedded_cpp/main.go

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+// Go cross compiler (xgo): Test file for embedded C++ snippets.
+// Copyright (c) 2015 Péter Szilágyi. All rights reserved.
+//
+// Released under the MIT license.
+
+package main
+
+// #include "snippet.h"
+import "C"
+
+func main() {
+	C.sayHi()
+}

tests/embedded_cpp/snippet.cpp

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+// Go cross compiler (xgo): Test implementation for embedded C++ snippets.
+// Copyright (c) 2015 Péter Szilágyi. All rights reserved.
+//
+// Released under the MIT license.
+
+#include <iostream>
+#include "snippet.h"
+
+void sayHi() {
+  std::cout << "Hello, embedded C++!" << std::endl;
+}

tests/embedded_cpp/snippet.h

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+// Go cross compiler (xgo): Test header for embedded C++ snippets.
+// Copyright (c) 2015 Péter Szilágyi. All rights reserved.
+//
+// Released under the MIT license.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void sayHi();
+
+#ifdef __cplusplus
+}
+#endif