Wrote basic makefile, wrote tests, and then fixed them

src/test_suite.h

@@ -0,0 +1,17 @@
+#ifndef HAMMER_TEST_SUITE__H
+#define HAMMER_TEST_SUITE__H
+
+// Equivalent to g_assert_*, but not using g_assert...
+#define g_check_cmpint(n1, op, n2) {			\
+  typeof (n1) _n1 = (n1);				\
+  typeof (n2) _n2 = (n2);				\
+  if (!(_n1 op _n2)) {					\
+    g_test_message("Check failed: (%s): (%d %s %d)",	\
+		   #n1 " " #op " " #n2,			\
+		   _n1, #op, _n2);			\
+    g_test_fail();					\
+  }							\
+  }
+
+
+#endif // #ifndef HAMMER_TEST_SUITE__H