[PATCH 5/9] tests/virtio-9p: check file names of READDIR response

[Christian Schoenebeck <qemu_oss@crudebyte.com>]

Additionally to the already existing check for expected amount
of directory entries returned by R_readdir response, also check
whether all entries have the expected file names, ignoring
their precise order in result list though.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
---
 tests/virtio-9p-test.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/tests/virtio-9p-test.c b/tests/virtio-9p-test.c
index ab5926527a..dafea1ae61 100644
--- a/tests/virtio-9p-test.c
+++ b/tests/virtio-9p-test.c
@@ -563,6 +563,15 @@ static void fs_walk(void *obj, void *data, QGuestAllocator *t_alloc)
     g_free(wqid);
 }
 
+static bool fs_dirents_contain_name(struct v9fs_dirent *e, const char* name) {
+    for (; e; e = e->next) {
+        if (!strcmp(e->name, name)) {
+            return true;
+        }
+    }
+    return false;
+}
+
 static void fs_readdir(void *obj, void *data, QGuestAllocator *t_alloc)
 {
     QVirtio9P *v9p = obj;
@@ -600,6 +609,18 @@ static void fs_readdir(void *obj, void *data, QGuestAllocator *t_alloc)
         QTEST_V9FS_SYNTH_READDIR_NFILES + 2 /* "." and ".." */
     );
 
+    /*
+     * Check all file names exist in returned entries, ignore their order
+     * though.
+     */
+    g_assert_cmpint(fs_dirents_contain_name(entries, "."), ==, true);
+    g_assert_cmpint(fs_dirents_contain_name(entries, ".."), ==, true);
+    for (int i = 0; i < QTEST_V9FS_SYNTH_READDIR_NFILES; ++i) {
+        char *name = g_strdup_printf(QTEST_V9FS_SYNTH_READDIR_FILE, i);
+        g_assert_cmpint(fs_dirents_contain_name(entries, name), ==, true);
+        g_free(name);
+    }
+
     v9fs_free_dirents(entries);
     g_free(wnames[0]);
 }
-- 
2.20.1