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From 081af2b88972972f000593d10629f0f269a7ad41 Mon Sep 17 00:00:00 2001
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Message-Id: <081af2b88972972f000593d10629f0f269a7ad41@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Tue, 23 Jun 2020 12:23:41 +0200
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Subject: [PATCH] qemublocktest: Add 'empty' case for checkpoint deletion
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Use the new test data for checkpoint deletion testing. This test also
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requires modification of the internals to allow checking for test
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failure.
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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(cherry picked from commit 88f175d88718114c032107df102d7c8071f0a38e)
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https://bugzilla.redhat.com/show_bug.cgi?id=1804593
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Message-Id: <957325a358cad71b3002dd03c3ec656ee4f225a9.1592906423.git.pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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 tests/qemublocktest.c                               | 13 +++++++------
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 .../checkpointdelete/empty-out.json                 |  1 +
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 2 files changed, 8 insertions(+), 6 deletions(-)
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 create mode 100644 tests/qemublocktestdata/checkpointdelete/empty-out.json
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diff --git a/tests/qemublocktest.c b/tests/qemublocktest.c
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index 3ef6ccec9b..5f1c68f6de 100644
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--- a/tests/qemublocktest.c
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+++ b/tests/qemublocktest.c
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@@ -851,14 +851,13 @@ testQemuCheckpointDeleteMerge(const void *opaque)
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                                          data->parentbitmap,
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                                          actions,
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                                          "testdisk",
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-                                         &reopenimages) < 0) {
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-        VIR_TEST_VERBOSE("failed to generate checkpoint delete transaction\n");
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-        return -1;
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+                                         &reopenimages) >= 0) {
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+        if (virJSONValueToBuffer(actions, &buf, true) < 0)
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+            return -1;
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+    } else {
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+        virBufferAddLit(&buf, "NULL\n");
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     }
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-    if (virJSONValueToBuffer(actions, &buf, true) < 0)
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-        return -1;
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-
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     if (reopenimages) {
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         virBufferAddLit(&buf, "reopen nodes:\n");
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@@ -1332,6 +1331,8 @@ mymain(void)
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         ret = -1; \
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     } while (0)
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+    TEST_CHECKPOINT_DELETE_MERGE("empty", "a", NULL, "empty");
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+
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     TEST_CHECKPOINT_DELETE_MERGE("basic-noparent", "a", NULL, "basic");
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     TEST_CHECKPOINT_DELETE_MERGE("basic-intermediate1", "b", "a", "basic");
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     TEST_CHECKPOINT_DELETE_MERGE("basic-intermediate2", "c", "b", "basic");
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diff --git a/tests/qemublocktestdata/checkpointdelete/empty-out.json b/tests/qemublocktestdata/checkpointdelete/empty-out.json
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new file mode 100644
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index 0000000000..7951defec1
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--- /dev/null
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+++ b/tests/qemublocktestdata/checkpointdelete/empty-out.json
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@@ -0,0 +1 @@
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+NULL
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-- 
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2.27.0
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