Add tests for stcncpy

4 files changed, 49 insertions, 0 deletions

diff --git a/tests/Makefile b/tests/Makefile
index 6722add..11718cc 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -22,6 +22,9 @@ TARGETS=test_memcpy_static_write     \
         test_strncpy_overwrite_over  \
         test_strncpy_overwrite_under \
         test_strncpy_static_write    \
+        test_stpncpy_overwrite_over  \
+        test_stpncpy_overwrite_under \
+        test_stpncpy_static_write    \
         test_getcwd                  \
 
 .SILENT:
diff --git a/tests/test_stpncpy_overwrite_over.c b/tests/test_stpncpy_overwrite_over.c
new file mode 100644
index 0000000..e66d8d3
--- /dev/null
+++ b/tests/test_stpncpy_overwrite_over.c
@@ -0,0 +1,15 @@
+#include "common.h"
+
+#include <string.h>
+
+int main(int argc, char** argv) {
+  char buffer[9] = {'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', '\0'};
+  puts(buffer);
+
+  CHK_FAIL_START
+  stpncpy(buffer+1, buffer, 5);
+  CHK_FAIL_END
+
+  puts(buffer);
+  return ret;
+}
diff --git a/tests/test_stpncpy_overwrite_under.c b/tests/test_stpncpy_overwrite_under.c
new file mode 100644
index 0000000..5625ff8
--- /dev/null
+++ b/tests/test_stpncpy_overwrite_under.c
@@ -0,0 +1,15 @@
+#include "common.h"
+
+#include <string.h>
+
+int main(int argc, char** argv) {
+  char buffer[9] = {'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', '\0'};
+  puts(buffer);
+
+  CHK_FAIL_START
+  stpncpy(buffer-1, buffer, 5);
+  CHK_FAIL_END
+
+  puts(buffer);
+  return ret;
+}
diff --git a/tests/test_stpncpy_static_write.c b/tests/test_stpncpy_static_write.c
new file mode 100644
index 0000000..4bf9092
--- /dev/null
+++ b/tests/test_stpncpy_static_write.c
@@ -0,0 +1,16 @@
+#include "common.h"
+
+#include <string.h>
+
+int main(int argc, char** argv) {
+  char buffer[8] = {0};
+  stpncpy(buffer, "1234567", 5);
+  puts(buffer);
+
+  CHK_FAIL_START
+  stpncpy(buffer, "1234567890", 10);
+  CHK_FAIL_END
+
+  puts(buffer);
+  return ret;
+}