lib: migrate tests to gtest

6 files changed, 64 insertions, 65 deletions

diff --git a/lib/Makefile b/lib/Makefile
index 042eccc..dec0769 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -7,5 +7,6 @@ libk.SRCS = memcpy.c memset.c stdio/printf.c string/itoa.c
 include ../rules.mk
 
 .PHONY: test
-test: tst/test_linked_list_allocator
-	@$(foreach f,$^,./$f)
+test: tst/test_mem tst/test_string tst/test_linked_list_allocator
+	@echo $^
+	$(foreach f,$^,./$f;)
diff --git a/lib/string/itoa.c b/lib/string/itoa.c
index 3708be2..2db9768 100644
--- a/lib/string/itoa.c
+++ b/lib/string/itoa.c
@@ -4,18 +4,6 @@
 static const char *numbers = "0123456789abcdef";
 
 char *
-itoa(char *p, int x, int base)
-{
-  const bool is_negative = (x < 0);
-  if (is_negative) x = -x;
-
-  p = utoa(p, x, base);
-
-  if (is_negative) *--p = '-';
-  return p;
-}
-
-char *
 utoa(char *p, unsigned x, int base)
 {
   p += 3 * sizeof(unsigned);
@@ -28,3 +16,15 @@ utoa(char *p, unsigned x, int base)
 
   return p;
 }
+
+char *
+itoa(char *p, int x, int base)
+{
+  const bool is_negative = (x < 0);
+  if (is_negative) x = -x;
+
+  p = utoa(p, x, base);
+
+  if (is_negative) *--p = '-';
+  return p;
+}
diff --git a/lib/tst/mem.c b/lib/tst/mem.c
deleted file mode 100644
index bccb3a3..0000000
--- a/lib/tst/mem.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#include <assert.h>
-
-static const unsigned char data[] = {0xde, 0xca, 0xfa, 0xde};
-static unsigned char buffer[4];
-
-void *memset(void *s, int c, long unsigned n);
-void *memcpy(void *restrict dest, const void *restrict src, long unsigned n);
-
-int
-main(void)
-{
-  memset(buffer, 0xae, sizeof(data));
-  for (unsigned i = 0; i < sizeof(data); ++i) assert(buffer[i] == 0xae);
-
-  memcpy(buffer, data, sizeof(data));
-  for (unsigned i = 0; i < sizeof(data); ++i) assert(buffer[i] == data[i]);
-}
diff --git a/lib/tst/mem.cc b/lib/tst/mem.cc
new file mode 100644
index 0000000..b233da8
--- /dev/null
+++ b/lib/tst/mem.cc
@@ -0,0 +1,29 @@
+#include <gtest/gtest.h>
+
+#define restrict __restrict__
+
+namespace libk {
+#include "../memcpy.c"
+#include "../memset.c"
+} // namespace libk
+
+TEST(mem, memset)
+{
+  auto *buffer = new unsigned char[2048];
+
+  libk::memset(buffer, 0xae, sizeof(buffer));
+  for (unsigned i = 0; i < sizeof(buffer); ++i) EXPECT_EQ(buffer[i], 0xae);
+
+  delete[] buffer;
+}
+
+TEST(mem, memcpy)
+{
+  const unsigned char data[] = {0xde, 0xca, 0xfa, 0xde};
+  auto *buffer = new unsigned char[sizeof(data)];
+
+  memcpy(buffer, data, sizeof(data));
+  for (unsigned i = 0; i < sizeof(data); ++i) EXPECT_EQ(buffer[i], data[i]);
+
+  delete[] buffer;
+}
diff --git a/lib/tst/string.c b/lib/tst/string.c
deleted file mode 100644
index 725d547..0000000
--- a/lib/tst/string.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#include "../string.h"
-#include <assert.h>
-
-static const char *dec = "12341234";
-static const char *neg_dec = "-12341234";
-static const char *u32_hex = "decafade";
-static const char *i32_hex = "7fffffff";
-static char buffer[64];
-
-int
-main()
-{
-  { // utoa
-    char *r;
-
-    r = utoa(buffer, 12341234u, 10);
-    for (unsigned i = 0; dec[i] != '\0'; ++i) assert(r[i] == dec[i]);
-
-    r = utoa(buffer, 0xdecafade, 16);
-    for (unsigned i = 0; u32_hex[i] != '\0'; ++i) assert(r[i] == u32_hex[i]);
-  }
-  { // itoa
-    char *r;
-
-    r = itoa(buffer, 12341234, 10);
-    for (unsigned i = 0; dec[i] != '\0'; ++i) assert(r[i] == dec[i]);
-
-    r = itoa(buffer, -12341234, 10);
-    for (unsigned i = 0; neg_dec[i] != '\0'; ++i) assert(r[i] == neg_dec[i]);
-
-    r = itoa(buffer, 0x7fffffff, 16);
-    for (unsigned i = 0; i32_hex[i] != '\0'; ++i) assert(r[i] == i32_hex[i]);
-  }
-}
diff --git a/lib/tst/string.cc b/lib/tst/string.cc
new file mode 100644
index 0000000..8dec190
--- /dev/null
+++ b/lib/tst/string.cc
@@ -0,0 +1,20 @@
+#include <gtest/gtest.h>
+
+namespace libk {
+#include "../string/itoa.c"
+}
+
+char buffer[64];
+
+TEST(itoa, itoa)
+{
+  EXPECT_STREQ(libk::itoa(buffer, 12341234, 10), "12341234");
+  EXPECT_STREQ(libk::itoa(buffer, -12341234, 10), "-12341234");
+  EXPECT_STREQ(libk::itoa(buffer, 0x7fffffff, 16), "7fffffff");
+}
+
+TEST(itoa, utoa)
+{
+  EXPECT_STREQ(libk::utoa(buffer, 12341234u, 10), "12341234");
+  EXPECT_STREQ(libk::utoa(buffer, 0xdecafade, 16), "decafade");
+}