[PATCH 6/9] commandtest: Use virTestCompareToFile() in checkoutput()

[Michal Privoznik <mprivozn@xxxxxxxxxx>]

In the commandtest there is checkoutput() function which checks
the latest log of commandhelper (containing things like cmd line
arguments, env vars, FDs, CWD, etc.) and compares that against
expected output. Well, the way this function implements that is
effectively by open coding virTestCompareToFile() except for the
nice feature that the virTestCompareToFile() has:
VIR_TEST_OUTPUT_REGENERATE.

Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
 tests/commandtest.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/tests/commandtest.c b/tests/commandtest.c
index 6d45ff196f..ffc4b24ef4 100644
--- a/tests/commandtest.c
+++ b/tests/commandtest.c
@@ -58,29 +58,18 @@ static int checkoutput(const char *testname)
 {
     int ret = -1;
     g_autofree char *expectname = NULL;
-    g_autofree char *expectlog = NULL;
     g_autofree char *actualname = NULL;
     g_autofree char *actuallog = NULL;
 
     expectname = g_strdup_printf("%s/commanddata/%s.log", abs_srcdir, testname);
     actualname = g_strdup_printf("%s/commandhelper.log", abs_builddir);
 
-    if (virFileReadAll(expectname, 1024*64, &expectlog) < 0) {
-        fprintf(stderr, "cannot read %s\n", expectname);
-        goto cleanup;
-    }
-
     if (virFileReadAll(actualname, 1024*64, &actuallog) < 0) {
         fprintf(stderr, "cannot read %s\n", actualname);
         goto cleanup;
     }
 
-    if (STRNEQ(expectlog, actuallog)) {
-        virTestDifference(stderr, expectlog, actuallog);
-        goto cleanup;
-    }
-
-    ret = 0;
+    ret = virTestCompareToFile(actuallog, expectname);
 
  cleanup:
     if (actualname)
@@ -1292,6 +1281,7 @@ mymain(void)
      * since we're about to reset 'environ' */
     ignore_value(virTestGetDebug());
     ignore_value(virTestGetVerbose());
+    ignore_value(virTestGetRegenerate());
 
     /* Make sure to not leak fd's */
     virinitret = virInitialize();
-- 
2.37.4