test: Clean up files created in a few tests

test-fgets-eof, test-ungetc-ftell and test-wchar all created test
files but failed to remove them afterwards. posix-io wasn't using
the per-target test filename provided by meson.

Signed-off-by: Keith Packard <[email protected]>

Author: keith-packard

test/posix-io.c

@@ -38,7 +38,11 @@
 #include <stdlib.h>
 #include <string.h>
 
-static const char file_name[] = "posix-io-test-file";
+#ifndef TEST_FILE_NAME
+#define TEST_FILE_NAME "posix-io-test-file"
+#endif
+
+static const char file_name[] = TEST_FILE_NAME;
 static const char test_string[] = "hello, world\n";
 
 static void test_cleanup(void)

test/test-fgets-eof.c

@@ -35,6 +35,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 #ifndef TEST_FILE_NAME
 #define TEST_FILE_NAME "FGETSEOF.TXT"
@@ -56,7 +57,10 @@ int main(void)
     fclose(file);
 
     file = fopen( TEST_FILE_NAME, "r" );
-    if(file == NULL) return 1;
+    if(file == NULL) {
+        unlink( TEST_FILE_NAME );
+        return 1;
+    }
 
     /*Calling fgets to reach EOF and check on the returned value*/
     pchar = fgets( line, 12, file);
@@ -76,6 +80,7 @@ int main(void)
     }
 
     fclose( file );
+    unlink( TEST_FILE_NAME );
 
     return ret;
 }

test/test-ungetc-ftell.c

@@ -35,6 +35,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 #ifndef TEST_FILE_NAME
 #define TEST_FILE_NAME "UNGETCFTELL.DAT"
@@ -54,7 +55,10 @@ int main(void) {
     fclose(file);
 
     file = fopen( TEST_FILE_NAME, "rb" );
-    if(file == NULL) return 1;
+    if(file == NULL) {
+        unlink(TEST_FILE_NAME);
+        return 1;
+    }
 
     first = fgetc(file);
     printf("First character read: %c\n", first);
@@ -71,9 +75,11 @@ int main(void) {
 
     if (position == 0) {
         printf("Test passed: ungetc and ftell working as expected.\n");
+        unlink(TEST_FILE_NAME);
         return 0;
     } else {
         printf("Test failed: Incorrect position after ungetc.\n");
+        unlink(TEST_FILE_NAME);
         return 1;
     }
 }

test/test-wchar.c

@@ -1,6 +1,6 @@
 /*
 * SPDX-License-Identifier: BSD-3-Clause
-* 
+*
 * Copyright © 2024, Synopsys Inc.
 * Copyright © 2024, Solid Sands B.V.
 *
@@ -36,7 +36,11 @@
 
 #include <stdio.h>
 #include <wchar.h>
+#include <unistd.h>
 
+#ifndef TEST_FILE_NAME
+#define TEST_FILE_NAME "WCHAR.DAT"
+#endif
 
 const wchar_t *string = L"Hello\n";
 
@@ -47,31 +51,34 @@ int main (void)
 	wint_t res;
 
     /* Create testfile.dat in write mode */
-    file = fopen("testfile.dat", "w");
+    file = fopen(TEST_FILE_NAME, "w");
     if (file == NULL) return 1;
-    
+
     /* Write wide characters to the file */
     fputws(string, file);
-	fclose(file);
-    
+    fclose(file);
+
     /* Open testfile.dat in read mode */
-    file = fopen("testfile.dat", "r");
+    file = fopen(TEST_FILE_NAME, "r");
+
+    for (ref = string; *ref != L'\0'; ref++) {
 
-	for (ref = string; *ref != L'\0'; ref++) {
-        
         /* Read wide-char by wide-char from the file */
-		res = fgetwc(file);
+        res = fgetwc(file);
         if((wchar_t) res != *ref) {
             printf("Test Failed: Failed to read wide character from file\n");
+            unlink(TEST_FILE_NAME);
             return 1;
         }
-	}
+    }
 
     if(fgetwc(file) != WEOF) {
         printf("Test Failed: Failed to check if end-of-file reached\n");
-        return 1;    
+        unlink(TEST_FILE_NAME);
+        return 1;
     }
-    
+
     printf("Test Passed: Wide characters were written & read successfuly\n");
+    unlink(TEST_FILE_NAME);
     return 0;
 }