Add apr_file_trunc test case. It currently fails for APR_FOPEN_BUFFERED because write buffer is flushed after ftruncate call

git-svn-id: http://svn.apache.org/repos/asf/apr/apr/trunk@1044432 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 57 insertions, 0 deletions

diff --git a/test/testfile.c b/test/testfile.c
index 2b4658669..dad214e35 100644
--- a/test/testfile.c
+++ b/test/testfile.c
@@ -810,6 +810,62 @@ static void test_truncate(abts_case *tc, void *data)
     ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
 }
 
+static void test_file_trunc(abts_case *tc, void *data)
+{
+    apr_status_t rv;
+    apr_file_t *f;
+    const char *fname = "data/testtruncate.dat";
+    const char *s;
+    apr_size_t nbytes;
+    apr_finfo_t finfo;
+
+    apr_file_remove(fname, p);
+
+    /* Test unbuffered */
+    rv = apr_file_open(&f, fname,
+                        APR_FOPEN_CREATE | APR_FOPEN_READ |
+                        APR_FOPEN_WRITE,
+                        APR_UREAD | APR_UWRITE, p);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+
+    s = "some data";
+    nbytes = strlen(s);
+    rv = apr_file_write(f, s, &nbytes);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+    ABTS_SIZE_EQUAL(tc, strlen(s), nbytes);
+    rv = apr_file_trunc(f, 4);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+    rv = apr_file_close(f);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+    rv = apr_stat(&finfo, fname, APR_FINFO_SIZE, p);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+    ABTS_ASSERT(tc, "File size mismatch, expected 4", finfo.size == 4);
+
+    rv = apr_file_remove(fname, p);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+    /* Test buffered */
+    rv = apr_file_open(&f, fname,
+                        APR_FOPEN_CREATE | APR_FOPEN_READ |
+                        APR_FOPEN_WRITE | APR_FOPEN_BUFFERED,
+                        APR_UREAD | APR_UWRITE, p);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+
+    nbytes = strlen(s);
+    rv = apr_file_write(f, s, &nbytes);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+    ABTS_SIZE_EQUAL(tc, strlen(s), nbytes);
+    rv = apr_file_trunc(f, 4);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+    rv = apr_file_close(f);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+    rv = apr_stat(&finfo, fname, APR_FINFO_SIZE, p);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+    ABTS_ASSERT(tc, "File size mismatch, expected 4", finfo.size == 4);
+
+    rv = apr_file_remove(fname, p);
+    ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
+}
+
 static void test_bigfprintf(abts_case *tc, void *data)
 {
     apr_file_t *f;
@@ -1003,6 +1059,7 @@ abts_suite *testfile(abts_suite *suite)
     abts_run_test(suite, test_bigread, NULL);
     abts_run_test(suite, test_mod_neg, NULL);
     abts_run_test(suite, test_truncate, NULL);
+    abts_run_test(suite, test_file_trunc, NULL);
     abts_run_test(suite, test_bigfprintf, NULL);
     abts_run_test(suite, test_fail_write_flush, NULL);
     abts_run_test(suite, test_fail_read_flush, NULL);