From b630cf4c0d8446a301fd23e87c9e8d60d547b5e8 Mon Sep 17 00:00:00 2001
From: Peter Krempa <pkrempa@redhat.com>
Date: Fri, 29 May 2020 12:55:02 +0200
Subject: [PATCH] qemublocktest: Add 'snapshots' tests for backup bitmap
 handling

The 'snapshots' case has multiple layers so we need to make sure that
the bitmaps are merged with the appropriate temporary bitmaps formatted
from the allocation bitmap for any backing chain layer above.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
 tests/qemublocktest.c                         |  4 ++
 .../backupmerge/snapshots-deep-out.json       | 41 +++++++++++++++++++
 .../backupmerge/snapshots-flat-out.json       | 25 +++++++++++
 .../snapshots-intermediate-out.json           | 29 +++++++++++++
 4 files changed, 99 insertions(+)
 create mode 100644 tests/qemublocktestdata/backupmerge/snapshots-deep-out.json
 create mode 100644 tests/qemublocktestdata/backupmerge/snapshots-flat-out.json
 create mode 100644 tests/qemublocktestdata/backupmerge/snapshots-intermediate-out.json

diff --git a/tests/qemublocktest.c b/tests/qemublocktest.c
index 1300e0cbe9..fd6dff82f9 100644
--- a/tests/qemublocktest.c
+++ b/tests/qemublocktest.c
@@ -1267,6 +1267,10 @@ mymain(void)
     TEST_BACKUP_BITMAP_CALCULATE("basic-intermediate", bitmapSourceChain, "d", "basic");
     TEST_BACKUP_BITMAP_CALCULATE("basic-deep", bitmapSourceChain, "a", "basic");
 
+    TEST_BACKUP_BITMAP_CALCULATE("snapshots-flat", bitmapSourceChain, "current", "snapshots");
+    TEST_BACKUP_BITMAP_CALCULATE("snapshots-intermediate", bitmapSourceChain, "d", "snapshots");
+    TEST_BACKUP_BITMAP_CALCULATE("snapshots-deep", bitmapSourceChain, "a", "snapshots");
+
 #define TEST_CHECKPOINT_DELETE(testname, delbmp, named) \
     do { \
         checkpointdeletedata.name = testname; \
diff --git a/tests/qemublocktestdata/backupmerge/snapshots-deep-out.json b/tests/qemublocktestdata/backupmerge/snapshots-deep-out.json
new file mode 100644
index 0000000000..d678507b85
--- /dev/null
+++ b/tests/qemublocktestdata/backupmerge/snapshots-deep-out.json
@@ -0,0 +1,41 @@
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "target_node",
+      "name": "target-bitmap-name",
+      "persistent": false,
+      "disabled": true,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "target_node",
+      "target": "target-bitmap-name",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-4-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-5-format",
+          "name": "a"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/backupmerge/snapshots-flat-out.json b/tests/qemublocktestdata/backupmerge/snapshots-flat-out.json
new file mode 100644
index 0000000000..4637bbc377
--- /dev/null
+++ b/tests/qemublocktestdata/backupmerge/snapshots-flat-out.json
@@ -0,0 +1,25 @@
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "target_node",
+      "name": "target-bitmap-name",
+      "persistent": false,
+      "disabled": true,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "target_node",
+      "target": "target-bitmap-name",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "current"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/backupmerge/snapshots-intermediate-out.json b/tests/qemublocktestdata/backupmerge/snapshots-intermediate-out.json
new file mode 100644
index 0000000000..30d8bcd8b7
--- /dev/null
+++ b/tests/qemublocktestdata/backupmerge/snapshots-intermediate-out.json
@@ -0,0 +1,29 @@
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "target_node",
+      "name": "target-bitmap-name",
+      "persistent": false,
+      "disabled": true,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "target_node",
+      "target": "target-bitmap-name",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "d"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "d"
+        }
+      ]
+    }
+  }
+]