Moved action to top level.

Removed old iterations of the project and moved the files from 02-usart
to the root directory since that's the sole place where the action is
and that subproject has outgrown its initial title.

1 files changed, 101 insertions, 0 deletions

diff --git a/test_harness/test_harness.h b/test_harness/test_harness.h
new file mode 100644
index 0000000..698e2da
--- /dev/null
+++ b/test_harness/test_harness.h
@@ -0,0 +1,101 @@
+#ifndef TEST_HARNESS_H_
+#define TEST_HARNESS_H_
+
+#include <stdio.h>
+#include <string.h>
+
+#define YELLOW "\x1b[00;33m"
+#define GREEN "\x1b[01;32m"
+#define RED "\x1b[01;31m"
+#define RESET "\x1b[0m"
+
+typedef struct {
+  const char* test_suite;
+  const char* test_name;
+  int (*fn_ptr)();
+  void* alignment;
+} test_t;
+
+#define GENPR(fmt, v1, v2) \
+  fprintf(stderr, fmt "\n", v1, v2)
+
+void test_printll(size_t sz, long long v1, long long v2);
+void test_printul(size_t sz, unsigned long v1, unsigned long v2);
+void test_printd(size_t sz, int v1, int v2);
+void test_printl(size_t sz, long v1, long v2);
+void test_printui(size_t sz, unsigned int v1, unsigned int v2);
+void test_prints(size_t sz, short v1, short v2);
+void test_printus(size_t sz, unsigned short v1, unsigned short v2);
+void test_printc(size_t sz, char v1, char v2);
+void test_printf(size_t sz, double v1, double v2);
+void test_printp(size_t sz, void* v1, void* v2);
+void test_printuc(size_t sz, unsigned char v1, unsigned char v2);
+
+#define FORMAT_STRING(v1, v2) \
+    _Generic((v1), \
+                long long: test_printll, \
+                unsigned long: test_printul, \
+                int: test_printd, \
+                long: test_printl, \
+                unsigned int: test_printui, \
+                short: test_prints, \
+                unsigned short: test_printus, \
+                char: test_printc, \
+                unsigned char: test_printuc, \
+                double: test_printf, \
+                default: test_printp)(sizeof(v1), v1, v2) \
+
+#define TRY_PRINT_TYPE(v1, v2, type, fmt) \
+  else if (__builtin_types_compatible_p(typeof (v1), type)) { \
+    fprintf(stderr, fmt " == " fmt "\n", v1, v2); \
+  }
+
+#define TYPE_STR(t) #t
+
+#define ASSERT_TRUE(x) \
+  do { \
+    if (!(x)) { \
+      fprintf(stderr, RED "ASSERT_TRUE FAILED!\n" RESET); \
+      fprintf(stderr, "  - " YELLOW "In expression ASSERT_TRUE(" #x ")\n"); \
+      fprintf(stderr, RESET "  - " YELLOW "At " __FILE__ ":%d\n" RESET, __LINE__); \
+      test_harness_abort(1); \
+    } \
+  } while (0)
+
+#define ASSERT_EQ(x, y) \
+  do { \
+    if ((x) != (y)) { \
+      fprintf(stderr, RED "ASSERT_EQ FAILED! " RESET "Not true that "); \
+      FORMAT_STRING((x), (y)); \
+      fprintf(stderr, "  - " YELLOW "In expression ASSERT_EQ(" #x ", " #y ")\n"); \
+      fprintf(stderr, RESET "  - " YELLOW "At " __FILE__ ":%d\n" RESET, __LINE__); \
+      test_harness_abort(1); \
+    } \
+  } while (0)
+
+#define ASSERT_EQ_STR(x, y) \
+  do { \
+    if (strcmp(x, y)) { \
+      fprintf(stderr, \
+          RED "ASSSERT_EQ_STR FAILED! " RESET "Not true that \"%s\" equals \"%s\"", \
+          x, y); \
+      fprintf(stderr, "  - " YELLOW "In expression ASSERT_EQ_STR(" #x ", " #y ")\n"); \
+      fprintf(stderr, RESET "  - " YELLOW "At " __FILE__":%d\n" RESET, __LINE__); \
+      test_harness_abort(1); \
+    } \
+  } while (0)
+
+
+#define TEST(test_suite, test_name) \
+  int test_suite ## _ ## test_name ## _fn (void); \
+  volatile test_t test_suite ## _ ## test_name ## _testing_struct__ \
+    __attribute((__section__("tests"))) __attribute((__used__)) = \
+     {#test_suite, #test_name, test_suite ## _ ## test_name ## _fn}; \
+  int test_suite ## _ ## test_name ## _fn (void)
+
+void test_harness_abort(int ec);
+
+
+void wipeout_fake_env();
+
+#endif