1 files changed, 35 insertions, 0 deletions
diff --git a/tests/test_completion_path.c b/tests/test_completion_path.c
index 8170ee9..6615c38 100644
--- a/tests/test_completion_path.c
+++ b/tests/test_completion_path.c
@@ -1,11 +1,16 @@
+#define _POSIX_C_SOURCE 200809L
+
 #include "test_core.h"
 
 #include "completion.h"
 #include "ecex.h"
 
 #include <assert.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
 
 void test_completion_helpers(void) {
     assert(ecex_ascii_strncasecmp("Alpha", "alpha", 5) == 0);
@@ -56,4 +61,34 @@ void test_path_helpers(void) {
     assert(ecex_path_is_image("photo.PNG") == 1);
     assert(ecex_path_is_video("clip.MKV") == 1);
     assert(ecex_path_is_media("notes.txt") == 0);
+
+    char root_dir[256];
+    snprintf(root_dir, sizeof(root_dir), "/tmp/ecex-project-test-%ld", (long)getpid());
+    char src_dir[320];
+    char nested_dir[384];
+    char marker[384];
+    char source_file[448];
+    snprintf(src_dir, sizeof(src_dir), "%s/src", root_dir);
+    snprintf(nested_dir, sizeof(nested_dir), "%s/nested", src_dir);
+    snprintf(marker, sizeof(marker), "%s/.ecex-project", root_dir);
+    snprintf(source_file, sizeof(source_file), "%s/main.c", nested_dir);
+
+    assert(mkdir(root_dir, 0700) == 0);
+    assert(mkdir(src_dir, 0700) == 0);
+    assert(mkdir(nested_dir, 0700) == 0);
+    FILE *file = fopen(marker, "wb");
+    assert(file);
+    fclose(file);
+
+    char *project_root = ecex_project_root_for_file(source_file);
+    char *normal_root = ecex_path_normalize(root_dir);
+    assert(project_root && normal_root);
+    assert(strcmp(project_root, normal_root) == 0);
+    free(project_root);
+    free(normal_root);
+
+    unlink(marker);
+    rmdir(nested_dir);
+    rmdir(src_dir);
+    rmdir(root_dir);
 }