1 files changed, 50 insertions, 0 deletions
diff --git a/tests/util/str/basic.c b/tests/util/str/basic.c
new file mode 100644
index 000000000..5d2556805
--- /dev/null
+++ b/tests/util/str/basic.c
@@ -0,0 +1,50 @@
+#include "clar_libgit2.h"
+
+static const char *test_string = "Have you seen that? Have you seeeen that??";
+
+void test_str_basic__resize(void)
+{
+	git_str buf1 = GIT_STR_INIT;
+	git_str_puts(&buf1, test_string);
+	cl_assert(git_str_oom(&buf1) == 0);
+	cl_assert_equal_s(git_str_cstr(&buf1), test_string);
+
+	git_str_puts(&buf1, test_string);
+	cl_assert(strlen(git_str_cstr(&buf1)) == strlen(test_string) * 2);
+	git_str_dispose(&buf1);
+}
+
+void test_str_basic__resize_incremental(void)
+{
+	git_str buf1 = GIT_STR_INIT;
+
+	/* Presently, asking for 6 bytes will round up to 8. */
+	cl_git_pass(git_str_puts(&buf1, "Hello"));
+	cl_assert_equal_i(5, buf1.size);
+	cl_assert_equal_i(8, buf1.asize);
+
+	/* Ensure an additional byte does not realloc. */
+	cl_git_pass(git_str_grow_by(&buf1, 1));
+	cl_assert_equal_i(5, buf1.size);
+	cl_assert_equal_i(8, buf1.asize);
+
+	/* But requesting many does. */
+	cl_git_pass(git_str_grow_by(&buf1, 16));
+	cl_assert_equal_i(5, buf1.size);
+	cl_assert(buf1.asize > 8);
+
+	git_str_dispose(&buf1);
+}
+
+void test_str_basic__printf(void)
+{
+	git_str buf2 = GIT_STR_INIT;
+	git_str_printf(&buf2, "%s %s %d ", "shoop", "da", 23);
+	cl_assert(git_str_oom(&buf2) == 0);
+	cl_assert_equal_s(git_str_cstr(&buf2), "shoop da 23 ");
+
+	git_str_printf(&buf2, "%s %d", "woop", 42);
+	cl_assert(git_str_oom(&buf2) == 0);
+	cl_assert_equal_s(git_str_cstr(&buf2), "shoop da 23 woop 42");
+	git_str_dispose(&buf2);
+}