From 59d5e9789e6af792653c7ba7002dab2cfe28c623 Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Sat, 22 Oct 2022 12:03:10 +0200
Subject: [PATCH] Tests: Add a test for atoi()

---
 tests/libc/Makefile |  2 +-
 tests/libc/Test.c   |  5 +++++
 tests/libc/stdlib.c | 24 ++++++++++++++++++++++++
 3 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 tests/libc/stdlib.c

diff --git a/tests/libc/Makefile b/tests/libc/Makefile
index dc0dd772..1ba9da60 100644
--- a/tests/libc/Makefile
+++ b/tests/libc/Makefile
@@ -4,7 +4,7 @@ DESTDIR := $(LUNA_ROOT)/initrd/bin
 build:
 	@mkdir -p $(TESTDIR)/bin
 	$(LUNA_ROOT)/tools/sync-libc.sh
-	$(CC) $(TESTDIR)/string.c $(TESTDIR)/Test.c -I$(LUNA_ROOT)/tests -o $(TESTDIR)/bin/test-libc -Wall -Wextra -Wno-stringop-overread -Werror
+	$(CC) $(TESTDIR)/string.c $(TESTDIR)/stdlib.c $(TESTDIR)/Test.c -I$(LUNA_ROOT)/tests -o $(TESTDIR)/bin/test-libc -Wall -Wextra -Wno-stringop-overread -Werror
 
 install:
 	$(LUNA_ROOT)/tools/clean.sh
diff --git a/tests/libc/Test.c b/tests/libc/Test.c
index e62efc9c..92bf3ba9 100644
--- a/tests/libc/Test.c
+++ b/tests/libc/Test.c
@@ -4,10 +4,15 @@ DEFINE_TEST(strlen);
 DEFINE_TEST(strnlen);
 DEFINE_TEST(strcspn);
 
+DEFINE_TEST(atoi);
+
 int main()
 {
     START_TEST_CASE(string.h);
     RUN_TEST(strlen);
     RUN_TEST(strnlen);
     RUN_TEST(strcspn);
+
+    START_TEST_CASE(stdlib.h);
+    RUN_TEST(atoi);
 }
\ No newline at end of file
diff --git a/tests/libc/stdlib.c b/tests/libc/stdlib.c
new file mode 100644
index 00000000..e2ea4e52
--- /dev/null
+++ b/tests/libc/stdlib.c
@@ -0,0 +1,24 @@
+#include "Test.h"
+#include <stdlib.h>
+
+DEFINE_TEST(atoi)
+{
+    START_TEST(atoi);
+
+    const char* str = "42";
+    int num = atoi(str);
+
+    EXPECT_EQ(num, 42);
+
+    str = "-56";
+    num = atoi(str);
+
+    EXPECT_EQ(num, -56);
+
+    str = "Not a number";
+    num = atoi(str);
+
+    EXPECT_EQ(num, 0);
+
+    TEST_SUCCESS();
+}
\ No newline at end of file