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[Qemu-block] [PATCH v4 17/25] iotests: Add quorum case to test 110


From: Max Reitz
Subject: [Qemu-block] [PATCH v4 17/25] iotests: Add quorum case to test 110
Date: Mon, 16 Jan 2017 21:49:13 +0100

Test 110 tests relative backing filenames for complex BDS trees. Add
quorum as an example that can never work automatically (without
special-casing if all child nodes have the same base directory), and an
example on how to make it work manually (using the base-directory
option).

Signed-off-by: Max Reitz <address@hidden>
---
 tests/qemu-iotests/110     | 48 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/110.out | 12 ++++++++++++
 2 files changed, 60 insertions(+)

diff --git a/tests/qemu-iotests/110 b/tests/qemu-iotests/110
index ba1b3c6c7d..d96b656b6b 100755
--- a/tests/qemu-iotests/110
+++ b/tests/qemu-iotests/110
@@ -30,6 +30,7 @@ status=1      # failure is the default!
 _cleanup()
 {
        _cleanup_test_img
+        rm -f "$TEST_IMG.copy"
 }
 trap "_cleanup; exit \$status" 0 1 2 3 15
 
@@ -87,6 +88,53 @@ echo
 # omit the image size; it should work anyway
 _make_test_img -b "$TEST_IMG_REL.base"
 
+echo
+echo '=== Nodes without a common directory ==='
+echo
+
+cp "$TEST_IMG" "$TEST_IMG.copy"
+
+# Should inform us that the actual path of the backing file cannot be 
determined
+TEST_IMG="json:{
+    'driver': '$IMGFMT',
+    'file': {
+        'driver': 'quorum',
+        'vote-threshold': 1,
+        'children': [
+            {
+                'driver': 'file',
+                'filename': '$TEST_IMG'
+            },
+            {
+                'driver': 'file',
+                'filename': '$TEST_IMG.copy'
+            }
+        ]
+    }
+}" _img_info | _filter_img_info
+
+echo
+
+# Should work fine
+TEST_IMG="json:{
+    'driver': '$IMGFMT',
+    'file': {
+        'driver': 'quorum',
+        'base-directory': '$TEST_DIR/',
+        'vote-threshold': 1,
+        'children': [
+            {
+                'driver': 'file',
+                'filename': '$TEST_IMG'
+            },
+            {
+                'driver': 'file',
+                'filename': '$TEST_IMG.copy'
+            }
+        ]
+    }
+}" _img_info | _filter_img_info
+
 
 # success, all done
 echo '*** done'
diff --git a/tests/qemu-iotests/110.out b/tests/qemu-iotests/110.out
index 5370bc1d26..e1845d8026 100644
--- a/tests/qemu-iotests/110.out
+++ b/tests/qemu-iotests/110.out
@@ -19,4 +19,16 @@ backing file: t.IMGFMT.base (actual path: 
TEST_DIR/t.IMGFMT.base)
 === Backing name is always relative to the backed image ===
 
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
backing_file=t.IMGFMT.base
+
+=== Nodes without a common directory ===
+
+image: json:{"driver": "IMGFMT", "file": {"children": [{"driver": "file", 
"filename": "TEST_DIR/t.IMGFMT"}, {"driver": "file", "filename": 
"TEST_DIR/t.IMGFMT.copy"}], "driver": "quorum", "blkverify": false, 
"rewrite-corrupted": false, "vote-threshold": 1}}
+file format: IMGFMT
+virtual size: 64M (67108864 bytes)
+backing file: t.IMGFMT.base (cannot determine actual path)
+
+image: json:{"driver": "IMGFMT", "file": {"children": [{"driver": "file", 
"filename": "TEST_DIR/t.IMGFMT"}, {"driver": "file", "filename": 
"TEST_DIR/t.IMGFMT.copy"}], "driver": "quorum", "blkverify": false, 
"rewrite-corrupted": false, "vote-threshold": 1}}
+file format: IMGFMT
+virtual size: 64M (67108864 bytes)
+backing file: t.IMGFMT.base (actual path: TEST_DIR/t.IMGFMT.base)
 *** done
-- 
2.11.0




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