[gtksourceview/wip/loader-saver: 6/6] Unit tests for the buffer input stream

[Sébastien Wilmet <swilmet src gnome org>]

commit 40f89f91c507ec4a2b3d1cd1b99a0b4d8c976ffa
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Dec 8 16:10:24 2013 +0100

    Unit tests for the buffer input stream

 tests/Makefile.am                |    8 ++
 tests/test-buffer-input-stream.c |  154 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 162 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 09d99aa..b2835fe 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -62,6 +62,14 @@ test_buffer_LDADD =          \
        $(DEP_LIBS)                     \
        $(TESTS_LIBS)
 
+UNIT_TEST_PROGS += test-buffer-input-stream
+test_buffer_input_stream_SOURCES = test-buffer-input-stream.c
+test_buffer_input_stream_LDADD =                                       \
+       $(top_builddir)/gtksourceview/libgtksourceview-private.la       \
+       $(top_builddir)/gtksourceview/libgtksourceview-3.0.la           \
+       $(DEP_LIBS)                                                     \
+       $(TESTS_LIBS)
+
 UNIT_TEST_PROGS += test-completion-model
 test_completion_model_SOURCES =        test-completion-model.c
 test_completion_model_LDADD =                                  \
diff --git a/tests/test-buffer-input-stream.c b/tests/test-buffer-input-stream.c
new file mode 100644
index 0000000..4f71466
--- /dev/null
+++ b/tests/test-buffer-input-stream.c
@@ -0,0 +1,154 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; coding: utf-8 -*- */
+/* test-buffer-input-stream.c
+ * This file is part of GtkSourceView
+ *
+ * Copyright (C) 2010 - Ignacio Casal Quinteiro
+ *
+ * GtkSourceView is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * GtkSourceView is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <gio/gio.h>
+#include <gtk/gtk.h>
+#include <string.h>
+#include <gtksourceview/gtksource.h>
+#include "gtksourceview/gtksourcebufferinputstream.h"
+
+static void
+test_consecutive_read (const gchar          *inbuf,
+                      const gchar          *outbuf,
+                      GtkSourceNewlineType  type,
+                      gsize                 read_chunk_len)
+{
+       GtkTextBuffer *buf;
+       GInputStream *in;
+       gsize outlen;
+       gssize n, r;
+       GError *err = NULL;
+       gchar *b;
+       gboolean close;
+
+       buf = gtk_text_buffer_new (NULL);
+       gtk_text_buffer_set_text (buf, inbuf, -1);
+
+       b = g_malloc (200);
+       in = _gtk_source_buffer_input_stream_new (buf, type, TRUE);
+
+       outlen = strlen (outbuf);
+       n = 0;
+
+       do
+       {
+               r = g_input_stream_read (in, b + n, read_chunk_len, NULL, &err);
+               g_assert_cmpint (r, >=, 0);
+               g_assert_no_error (err);
+
+               n += r;
+       } while (r != 0);
+
+       g_assert_cmpint (n, ==, outlen);
+
+       b[n] = '\0';
+
+       g_assert_cmpstr (b, ==, outbuf);
+
+       close = g_input_stream_close (in, NULL, &err);
+       g_assert (close);
+       g_assert_no_error (err);
+
+       g_object_unref (buf);
+       g_object_unref (in);
+       g_free (b);
+}
+
+static void
+test_empty (void)
+{
+       /* empty file should not have a trailing newline */
+       test_consecutive_read ("", "", GTK_SOURCE_NEWLINE_TYPE_CR_LF, 10);
+}
+
+static void
+test_consecutive_cut_char (void)
+{
+       /* first \n is read then fo and then is added \r but not \n */
+       test_consecutive_read ("\nfo\nbar\n\nblah\n", "\r\nfo\r\nbar\r\n\r\nblah\r\n\r\n", 
GTK_SOURCE_NEWLINE_TYPE_CR_LF, 8);
+       test_consecutive_read ("\nfo\nbar\n\nblah", "\r\nfo\r\nbar\r\n\r\nblah\r\n", 
GTK_SOURCE_NEWLINE_TYPE_CR_LF, 8);
+}
+
+static void
+test_consecutive_big_read (void)
+{
+       test_consecutive_read ("\nfo\nbar\n\nblah\n", "\rfo\rbar\r\rblah\r\r", GTK_SOURCE_NEWLINE_TYPE_CR, 
200);
+       test_consecutive_read ("\nfo\nbar\n\nblah", "\rfo\rbar\r\rblah\r", GTK_SOURCE_NEWLINE_TYPE_CR, 200);
+
+       test_consecutive_read ("\rfo\rbar\r\rblah\r", "\nfo\nbar\n\nblah\n\n", GTK_SOURCE_NEWLINE_TYPE_LF, 
200);
+       test_consecutive_read ("\rfo\rbar\r\rblah", "\nfo\nbar\n\nblah\n", GTK_SOURCE_NEWLINE_TYPE_LF, 200);
+
+       test_consecutive_read ("\r\nfo\r\nbar\r\n\r\nblah\r\n", "\nfo\nbar\n\nblah\n\n", 
GTK_SOURCE_NEWLINE_TYPE_LF, 200);
+       test_consecutive_read ("\r\nfo\r\nbar\r\n\r\nblah", "\nfo\nbar\n\nblah\n", 
GTK_SOURCE_NEWLINE_TYPE_LF, 200);
+
+       test_consecutive_read ("\nfo\nbar\n\nblah\n", "\r\nfo\r\nbar\r\n\r\nblah\r\n\r\n", 
GTK_SOURCE_NEWLINE_TYPE_CR_LF, 200);
+       test_consecutive_read ("\nfo\nbar\n\nblah", "\r\nfo\r\nbar\r\n\r\nblah\r\n", 
GTK_SOURCE_NEWLINE_TYPE_CR_LF, 200);
+}
+
+static void
+test_consecutive_middle_read (void)
+{
+       test_consecutive_read ("\nfo\nbar\n\nblah\n", "\rfo\rbar\r\rblah\r\r", GTK_SOURCE_NEWLINE_TYPE_CR, 6);
+       test_consecutive_read ("\nfo\nbar\n\nblah", "\rfo\rbar\r\rblah\r", GTK_SOURCE_NEWLINE_TYPE_CR, 6);
+
+       test_consecutive_read ("\rfo\rbar\r\rblah\r", "\nfo\nbar\n\nblah\n\n", GTK_SOURCE_NEWLINE_TYPE_LF, 6);
+       test_consecutive_read ("\rfo\rbar\r\rblah", "\nfo\nbar\n\nblah\n", GTK_SOURCE_NEWLINE_TYPE_LF, 6);
+
+       test_consecutive_read ("\r\nfo\r\nbar\r\n\r\nblah\r\n", "\nfo\nbar\n\nblah\n\n", 
GTK_SOURCE_NEWLINE_TYPE_LF, 6);
+       test_consecutive_read ("\r\nfo\r\nbar\r\n\r\nblah", "\nfo\nbar\n\nblah\n", 
GTK_SOURCE_NEWLINE_TYPE_LF, 6);
+
+       test_consecutive_read ("\nfo\nbar\n\nblah\n", "\r\nfo\r\nbar\r\n\r\nblah\r\n\r\n", 
GTK_SOURCE_NEWLINE_TYPE_CR_LF, 6);
+       test_consecutive_read ("\nfo\nbar\n\nblah", "\r\nfo\r\nbar\r\n\r\nblah\r\n", 
GTK_SOURCE_NEWLINE_TYPE_CR_LF, 6);
+}
+
+static void
+test_consecutive_multibyte_cut (void)
+{
+       test_consecutive_read ("hello\nhello\xe6\x96\x87\nworld\n", "hello\rhello\xe6\x96\x87\rworld\r\r", 
GTK_SOURCE_NEWLINE_TYPE_CR, 6);
+       test_consecutive_read ("hello\rhello\xe6\x96\x87\rworld\r", "hello\rhello\xe6\x96\x87\rworld\r\r", 
GTK_SOURCE_NEWLINE_TYPE_CR, 6);
+       test_consecutive_read ("hello\nhello\xe6\x96\x87\nworld\n", "hello\nhello\xe6\x96\x87\nworld\n\n", 
GTK_SOURCE_NEWLINE_TYPE_LF, 6);
+}
+
+static void
+test_consecutive_multibyte_big_read (void)
+{
+       test_consecutive_read ("hello\nhello\xe6\x96\x87\nworld\n", "hello\rhello\xe6\x96\x87\rworld\r\r", 
GTK_SOURCE_NEWLINE_TYPE_CR, 200);
+       test_consecutive_read ("hello\rhello\xe6\x96\x87\rworld\r", "hello\rhello\xe6\x96\x87\rworld\r\r", 
GTK_SOURCE_NEWLINE_TYPE_CR, 200);
+       test_consecutive_read ("hello\nhello\xe6\x96\x87\nworld\n", "hello\nhello\xe6\x96\x87\nworld\n\n", 
GTK_SOURCE_NEWLINE_TYPE_LF, 200);
+}
+
+gint
+main (gint   argc,
+      gchar *argv[])
+{
+       g_test_init (&argc, &argv, NULL);
+
+       g_test_add_func ("/buffer-input-stream/empty", test_empty);
+
+       g_test_add_func ("/buffer-input-stream/consecutive_cut_char", test_consecutive_cut_char);
+       g_test_add_func ("/buffer-input-stream/consecutive_big_read", test_consecutive_big_read);
+       g_test_add_func ("/buffer-input-stream/consecutive_middle_read", test_consecutive_middle_read);
+
+       g_test_add_func ("/buffer-input-stream/consecutive_multibyte_cut", test_consecutive_multibyte_cut);
+       g_test_add_func ("/buffer-input-stream/consecutive_multibyte_big_read", 
test_consecutive_multibyte_big_read);
+
+       return g_test_run ();
+}