Updates for bazel on windows.

opengl/window_test.cpp

@@ -0,0 +1,22 @@
+#include <tinytest.h>
+
+#include <iostream>
+
+namespace {
+using std::cout;
+using TinyTest::TestResults;
+}  // namespace
+
+TestResults test_something() {
+  return TestResults().Pass();
+}
+
+int main(int argc, char* argv[]) {
+  TestResults results;
+
+  results += test_something();
+
+  PrintResults(cout, results);
+
+  return results.Failed() + results.Errors();
+}