[Libguestfs] [PATCH nbdkit 4/4] tests: Add test of the ext2 plugin.

[Richard W.M. Jones]

---
 .gitignore        |  2 ++
 tests/Makefile.am | 26 ++++++++++++++++
 tests/test-ext2.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 120 insertions(+)

diff --git a/.gitignore b/.gitignore
index 3b7365f..f41de87 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,6 +47,7 @@ Makefile.in
 /tests/disk
 /tests/disk.gz
 /tests/disk.xz
+/tests/ext2.img
 /tests/file-data
 /tests/offset-data
 /tests/partition-disk
@@ -57,6 +58,7 @@ Makefile.in
 /tests/test-connect
 /tests/test-delay
 /tests/test-exit-with-parent
+/tests/test-ext2
 /tests/test-file
 /tests/test-gzip
 /tests/test-memory
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 1830cd3..850240b 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -244,6 +244,32 @@ disk:
 
 endif HAVE_GUESTFISH
 
+# ext2 plugin test.
+if HAVE_EXT2
+if HAVE_GUESTFISH
+
+LIBGUESTFS_TESTS += test-ext2
+check_DATA += ext2.img
+MAINTAINERCLEANFILES += ext2.img
+
+ext2.img: disk
+	rm -f $@ $@-t
+	guestfish \
+	    sparse $@-t 2G : \
+	    run : \
+	    mkfs ext4 /dev/sda : \
+	    mount /dev/sda / : \
+	    mkdir /disks : \
+	    upload $< /disks/disk.img
+	mv $@-t $@
+
+test_ext2_SOURCES = test-ext2.c test.h
+test_ext2_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_ext2_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+endif HAVE_GUESTFISH
+endif HAVE_EXT2
+
 # file plugin test.
 LIBGUESTFS_TESTS += test-file
 
diff --git a/tests/test-ext2.c b/tests/test-ext2.c
new file mode 100644
index 0000000..b222533
--- /dev/null
+++ b/tests/test-ext2.c
@@ -0,0 +1,92 @@
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+  guestfs_h *g;
+  int r;
+  char *data;
+
+  if (test_start_nbdkit ("ext2", "-r", "disk=ext2.img", "file=/disks/disk.img",
+                         NULL) == -1)
+    exit (EXIT_FAILURE);
+
+  g = guestfs_create ();
+  if (g == NULL) {
+    perror ("guestfs_create");
+    exit (EXIT_FAILURE);
+  }
+
+  r = guestfs_add_drive_opts (g, "",
+                              GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
+                              GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+                              GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+                              GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+                              -1);
+  if (r == -1)
+    exit (EXIT_FAILURE);
+
+  if (guestfs_launch (g) == -1)
+    exit (EXIT_FAILURE);
+
+  /* disk.img contains one partition and a test file called "hello.txt" */
+  if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1)
+    exit (EXIT_FAILURE);
+
+  data = guestfs_cat (g, "/hello.txt");
+  if (!data)
+    exit (EXIT_FAILURE);
+
+  if (strcmp (data, "hello,world") != 0) {
+    fprintf (stderr, "%s FAILED: unexpected content of /hello.txt file (actual: %s, expected: \"hello,world\")\n",
+             program_name, data);
+    exit (EXIT_FAILURE);
+  }
+
+  guestfs_close (g);
+  exit (EXIT_SUCCESS);
+}
-- 
2.16.2