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GMemoryOutputStream: improve seek tests

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Improve test coverage for testing seeking on fixed vs. resizable
GMemoryOutputStream.

https://bugzilla.gnome.org/show_bug.cgi?id=684842
This commit is contained in:
Ryan Lortie 2013-10-22 16:15:29 -04:00
parent fdc5cd8d9f
commit 1d1c17d9ee
1 changed files with 94 additions and 3 deletions
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97
gio/tests/memory-output-stream.c
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@ -55,7 +55,7 @@ test_truncate (void)
}
static void
test_seek (void)
test_seek_fixed (void)
{
GOutputStream *mo;
GError *error;
@ -64,19 +64,109 @@ test_seek (void)
g_assert (G_IS_SEEKABLE (mo));
g_assert (g_seekable_can_seek (G_SEEKABLE (mo)));
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 0);
error = NULL;
g_assert (!g_seekable_seek (G_SEEKABLE (mo), 222, G_SEEK_CUR, NULL, &error));
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
g_clear_error (&error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 0);
g_assert (g_seekable_seek (G_SEEKABLE (mo), 26, G_SEEK_SET, NULL, &error));
g_assert_no_error (error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 26);
g_assert (g_seekable_seek (G_SEEKABLE (mo), 20, G_SEEK_CUR, NULL, &error));
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 46);
g_assert_no_error (error);
g_assert (!g_seekable_seek (G_SEEKABLE (mo), 200, G_SEEK_CUR, NULL, &error));
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
g_error_free (error);
g_clear_error (&error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 46);
g_assert (!g_seekable_seek (G_SEEKABLE (mo), 1, G_SEEK_END, NULL, &error));
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
g_clear_error (&error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 46);
g_assert (g_seekable_seek (G_SEEKABLE (mo), 0, G_SEEK_END, NULL, &error));
g_assert_no_error (error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 100);
g_assert (g_seekable_seek (G_SEEKABLE (mo), -1, G_SEEK_END, NULL, &error));
g_assert_no_error (error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 99);
g_object_unref (mo);
}
static void
test_seek_resizable_stream (GOutputStream *mo)
{
GError *error;
g_assert (G_IS_SEEKABLE (mo));
g_assert (g_seekable_can_seek (G_SEEKABLE (mo)));
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 0);
error = NULL;
g_assert (g_seekable_seek (G_SEEKABLE (mo), 222, G_SEEK_CUR, NULL, &error));
g_assert_no_error (error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 222);
g_assert (g_seekable_seek (G_SEEKABLE (mo), 26, G_SEEK_SET, NULL, &error));
g_assert_no_error (error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 26);
g_assert (g_seekable_seek (G_SEEKABLE (mo), 20, G_SEEK_CUR, NULL, &error));
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 46);
g_assert_no_error (error);
g_assert (g_seekable_seek (G_SEEKABLE (mo), 200, G_SEEK_CUR, NULL, &error));
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 246);
g_assert_no_error (error);
g_assert (g_seekable_seek (G_SEEKABLE (mo), 1, G_SEEK_END, NULL, &error));
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 1);
g_assert_no_error (error);
g_assert (g_seekable_seek (G_SEEKABLE (mo), 0, G_SEEK_END, NULL, &error));
g_assert_no_error (error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 0);
/* The 'end' is still zero, so this should fail */
g_assert (!g_seekable_seek (G_SEEKABLE (mo), -1, G_SEEK_END, NULL, &error));
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
g_clear_error (&error);
g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 0);
}
static void
test_seek_resizable (void)
{
GOutputStream *mo;
gint i;
/* For resizable streams, the initially allocated size is purely an
* implementation detail. We should not be able to tell the
* difference based on the seek API, so make a bunch of streams with
* different sizes and subject them to the same test.
*/
for (i = 0; i < 1024; i++)
{
mo = g_memory_output_stream_new (g_malloc (i), i, g_realloc, g_free);
test_seek_resizable_stream (mo);
g_assert_cmpint (g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (mo)), ==, 0);
/* No writes = no resizes */
g_assert_cmpint (g_memory_output_stream_get_size (G_MEMORY_OUTPUT_STREAM (mo)), ==, i);
g_object_unref (mo);
}
}
static void
test_data_size (void)
{
@ -230,7 +320,8 @@ main (int argc,
g_test_bug_base ("http://bugzilla.gnome.org/");
g_test_add_func ("/memory-output-stream/truncate", test_truncate);
g_test_add_func ("/memory-output-stream/seek", test_seek);
g_test_add_func ("/memory-output-stream/seek/fixed", test_seek_fixed);
g_test_add_func ("/memory-output-stream/seek/resizable", test_seek_resizable);
g_test_add_func ("/memory-output-stream/get-data-size", test_data_size);
g_test_add_func ("/memory-output-stream/properties", test_properties);
g_test_add_func ("/memory-output-stream/write-bytes", test_write_bytes);