partial path_simplify implementation

it currently only checks if the path is valid, it's the bare minimum
needed to write tests

1 files changed, 35 insertions, 0 deletions

diff --git a/src/kernel/tests/vfs.c b/src/kernel/tests/vfs.c
new file mode 100644
index 0000000..a5a6848
--- /dev/null
+++ b/src/kernel/tests/vfs.c
@@ -0,0 +1,35 @@
+#include <kernel/tests/base.h>
+#include <kernel/util.h>
+#include <kernel/vfs/path.h>
+
+TEST(path_simplify) {
+	char buf[256];
+
+	// some easy valid cases
+	TEST_COND( path_simplify("/asdf", buf, 5));
+	TEST_COND( path_simplify("/asd/", buf, 5));
+	TEST_COND( path_simplify("/a/./", buf, 5));
+	TEST_COND( path_simplify("/a/..", buf, 5));
+	TEST_COND( path_simplify("/a//.", buf, 5));
+
+	// .. going under the root or close to it
+	TEST_COND(!path_simplify("/../123456", buf, 10));
+	TEST_COND(!path_simplify("/./a/../..", buf, 10));
+	TEST_COND( path_simplify("/a/a/../..", buf, 10));
+	TEST_COND(!path_simplify("/////../..", buf, 10));
+	TEST_COND(!path_simplify("//a//../..", buf, 10));
+
+	// relative paths aren't allowed
+	TEST_COND(!path_simplify("apath", buf, 5));
+	TEST_COND(!path_simplify("a/pth", buf, 5));
+	TEST_COND(!path_simplify("../th", buf, 5));
+
+	// this includes empty paths
+	TEST_COND(!path_simplify("", buf, 1));
+
+	// TODO test if the paths are simplified correctly
+}
+
+void tests_vfs() {
+	TEST_RUN(path_simplify);
+}