From: Thomas Huth <thuth@redhat.com>
Date: Fri, 23 Aug 2019 13:35:52 +0000 (+0200)
Subject: iotests: Check for enabled drivers before testing them
X-Git-Tag: v4.2.0-rc0~195^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=21b43d004813ae71d964f74e59ff149bb480db73;p=thirdparty%2Fqemu.git

iotests: Check for enabled drivers before testing them

It is possible to enable only a subset of the block drivers with the
"--block-drv-rw-whitelist" option of the "configure" script. All other
drivers are marked as unusable (or only included as read-only with the
"--block-drv-ro-whitelist" option). If an iotest is now using such a
disabled block driver, it is failing - which is bad, since at least the
tests in the "auto" group should be able to deal with this situation.
Thus let's introduce a "_require_drivers" function that can be used by
the shell tests to check for the availability of certain drivers first,
and marks the test as "not run" if one of the drivers is missing.

This patch mainly targets the test in the "auto" group which should
never fail in such a case, but also improves some of the other tests
along the way. Note that we also assume that the "qcow2" and "file"
drivers are always available - otherwise it does not make sense to
run "make check-block" at all (which only tests with qcow2 by default).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 20190823133552.11680-1-thuth@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
---

diff --git a/tests/qemu-iotests/071 b/tests/qemu-iotests/071
index 1cca9233d09..fab526666b0 100755
--- a/tests/qemu-iotests/071
+++ b/tests/qemu-iotests/071
@@ -38,6 +38,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 
 _supported_fmt qcow2
 _supported_proto file
+_require_drivers blkdebug blkverify
 
 do_run_qemu()
 {
diff --git a/tests/qemu-iotests/081 b/tests/qemu-iotests/081
index c418bab0937..85acdf76d43 100755
--- a/tests/qemu-iotests/081
+++ b/tests/qemu-iotests/081
@@ -41,6 +41,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 _supported_fmt raw
 _supported_proto file
 _supported_os Linux
+_require_drivers quorum
 
 do_run_qemu()
 {
@@ -55,9 +56,6 @@ run_qemu()
                           | _filter_qemu_io | _filter_generated_node_ids
 }
 
-test_quorum=$($QEMU_IMG --help|grep quorum)
-[ "$test_quorum" = "" ] && _supported_fmt quorum
-
 quorum="driver=raw,file.driver=quorum,file.vote-threshold=2"
 quorum="$quorum,file.children.0.file.filename=$TEST_DIR/1.raw"
 quorum="$quorum,file.children.1.file.filename=$TEST_DIR/2.raw"
diff --git a/tests/qemu-iotests/099 b/tests/qemu-iotests/099
index ae02f27afe3..c3cf66798a9 100755
--- a/tests/qemu-iotests/099
+++ b/tests/qemu-iotests/099
@@ -42,6 +42,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 _supported_fmt qcow qcow2 qed vdi vhdx vmdk vpc
 _supported_proto file
 _supported_os Linux
+_require_drivers blkdebug blkverify
 _unsupported_imgopts "subformat=monolithicFlat" "subformat=twoGbMaxExtentFlat" \
     "subformat=twoGbMaxExtentSparse"
 
diff --git a/tests/qemu-iotests/120 b/tests/qemu-iotests/120
index e9b4fbb0095..2931a7550f9 100755
--- a/tests/qemu-iotests/120
+++ b/tests/qemu-iotests/120
@@ -40,6 +40,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 _supported_fmt generic
 _supported_proto file
 _unsupported_fmt luks
+_require_drivers raw
 
 _make_test_img 64M
 
diff --git a/tests/qemu-iotests/162 b/tests/qemu-iotests/162
index 4e5ed74fd58..2d719afbeda 100755
--- a/tests/qemu-iotests/162
+++ b/tests/qemu-iotests/162
@@ -39,9 +39,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 . ./common.filter
 
 _supported_fmt generic
-
-test_ssh=$($QEMU_IMG --help | grep '^Supported formats:.* ssh\( \|$\)')
-[ "$test_ssh" = "" ] && _notrun "ssh support required"
+_require_drivers ssh
 
 echo
 echo '=== NBD ==='
diff --git a/tests/qemu-iotests/184 b/tests/qemu-iotests/184
index cb0c181228b..33dd8d2a4fc 100755
--- a/tests/qemu-iotests/184
+++ b/tests/qemu-iotests/184
@@ -33,6 +33,7 @@ trap "exit \$status" 0 1 2 3 15
 . ./common.filter
 
 _supported_os Linux
+_require_drivers throttle
 
 do_run_qemu()
 {
diff --git a/tests/qemu-iotests/186 b/tests/qemu-iotests/186
index 5f6b18c150e..3ea0442d44f 100755
--- a/tests/qemu-iotests/186
+++ b/tests/qemu-iotests/186
@@ -38,6 +38,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 
 _supported_fmt qcow2
 _supported_proto file
+_require_drivers null-co
 
 if [ "$QEMU_DEFAULT_MACHINE" != "pc" ]; then
     _notrun "Requires a PC machine"
diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
index 5502c3da2f8..ee20be8920d 100644
--- a/tests/qemu-iotests/common.rc
+++ b/tests/qemu-iotests/common.rc
@@ -520,5 +520,19 @@ _require_command()
     [ -x "$c" ] || _notrun "$1 utility required, skipped this test"
 }
 
+# Check that a set of drivers has been whitelisted in the QEMU binary
+#
+_require_drivers()
+{
+    available=$($QEMU -drive format=help | \
+                sed -e '/Supported formats:/!d' -e 's/Supported formats://')
+    for driver
+    do
+        if ! echo "$available" | grep -q " $driver\( \|$\)"; then
+            _notrun "$driver not available"
+        fi
+    done
+}
+
 # make sure this script returns success
 true