X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Frename.c;h=3f9152dca7a5d2fb07f1eaa0b558910f040ceb2e;hb=0d54a75af25ca44411e7c4190cc2a93a390e61a2;hp=8e2d3e0bb0306daa0a541208e030a95cae38e8b0;hpb=831a440426dcd5b6da5a7d4de757ab6ea50b3b4a;p=pdclib.old

diff --git a/functions/stdio/rename.c b/functions/stdio/rename.c
index 8e2d3e0..3f9152d 100644
--- a/functions/stdio/rename.c
+++ b/functions/stdio/rename.c
@@ -22,14 +22,50 @@ int rename( const char * old, const char * new )
 #ifdef TEST
 #include <_PDCLIB_test.h>
 
+#include <stdlib.h>
+
 int main( void )
 {
+    /* TODO: Extend to internal testing (buffer etc.) */
+    char filename1[] = "touch testfile1";
+    char filename2[] = "testfile2";
+    remove( filename1 + 6 );
+    remove( filename2 );
+    /* make sure that neither file exists */
+    TESTCASE( fopen( filename1 + 6, "r" ) == NULL );
+    TESTCASE( fopen( filename2, "r" ) == NULL );
+    /* rename file 1 to file 2 - expected to fail */
+    TESTCASE( rename( filename1 + 6, filename2 ) == -1 );
+    /* create file 1 */
+    system( filename1 );
+    /* check that file 1 exists */
+    TESTCASE( fopen( filename1 + 6, "r" ) != NULL );
+    /* rename file 1 to file 2 */
+    TESTCASE( rename( filename1 + 6, filename2 ) == 0 );
+    /* check that file 2 exists, file 1 does not */
+    TESTCASE( fopen( filename1 + 6, "r" ) == NULL );
+    TESTCASE( fopen( filename2, "r" ) != NULL );
+    /* create another file 1 */
+    system( filename1 );
+    /* check that file 1 exists */
+    TESTCASE( fopen( filename1 + 6, "r" ) != NULL );
+    /* rename file 1 to file 2 - expected to fail, see comment in
+       _PDCLIB_rename() itself.
+    */
 #ifndef REGTEST
-    TESTCASE( NO_TESTDRIVER );
+    TESTCASE( rename( filename1 + 6, filename2 ) == -1 );
 #else
-    puts( "No testing of rename() - test driver does not know internals of system function." );
+    /* glibc rename() overwrites existing destination file. */
+    TESTCASE( rename( filename1 + 6, filename2 ) == 0 );
 #endif
+    /* remove both files */
+    remove( filename1 + 6 );
+    remove( filename2 );
+    /* check that they're gone */
+    TESTCASE( fopen( filename1 + 6, "r" ) == NULL );
+    TESTCASE( fopen( filename2, "r" ) == NULL );
     return TEST_RESULTS;
 }
 
 #endif
+