[libvirt] adding tests....

In adding a couple of tests, I noticed that libvirtd --config=no-such didn't diagnose my mistake. I fixed that with the first patch below: diagnose "libvirtd --config=no-such-file" * qemud/qemud.c (remoteReadConfigFile): Don't return 0 (success) when the config file is unreadable or nonexistent Return -1, not 0, upon virConfReadFile failure. (main): If remote_config_file is not specified via --config(-f), use the default config file only if it exists. Otherwise, use /dev/null. However, that made it so libvirtd gave two diagnostics: Failed to open file 'no-such': No such file or directory libvir: Config error : failed to open no-such for reading The latter part of that patch fixes it like this: * src/conf.c (virConfReadFile): Don't diagnose virFileReadAll failure, since it already does that. Finally, I went to add the two tests, one to ensure libvirtd --config=no-such-file now fails, as I expected another to start libvirtd and then run a small pool-related test via a separate virsh invocation. But that made me see a bug in tests/Makefile.am: A missing backslash made it so the virsh-all test wasn't being run. Easy to fix. But then, I saw when virsh-all runs it generated too much output, so I did this: tests: quiet virsh-all * tests/virsh-all: For now, ignore diagnostics and exit status, when running all virsh commands. Finally, here are the two tests: add tests * tests/libvirtd-pool: New file. * tests/libvirtd-fail: New file. * tests/Makefile.am (test_scripts): Add omitted backslash, so that the virsh-all test is run. Add libvirtd-fail and libvirtd-pool. From: Jim Meyering <meyering(a)redhat.com&gt; Date: Thu, 8 Jan 2009 20:17:35 +0100 Subject: [PATCH 1/3] diagnose "libvirtd --config=no-such-file" * qemud/qemud.c (remoteReadConfigFile): Don't return 0 (success) when the config file is unreadable or nonexistent Return -1, not 0, upon virConfReadFile failure. (main): If remote_config_file is not specified via --config(-f), use the default config file only if it exists. Otherwise, use /dev/null. * src/conf.c (virConfReadFile): Don't diagnose virFileReadAll failure, since it already does that. --- qemud/qemud.c | 20 ++++++++++++-------- src/conf.c | 3 +-- 2 files changed, 13 insertions(+), 10 deletions(-) diff --git a/qemud/qemud.c b/qemud/qemud.c index c3d3c02..9835e0a 100644 --- a/qemud/qemud.c +++ b/qemud/qemud.c @@ -1,7 +1,7 @@ /* * qemud.c: daemon start of day, guest process & i/o management * - * Copyright (C) 2006, 2007, 2008 Red Hat, Inc. + * Copyright (C) 2006, 2007, 2008, 2009 Red Hat, Inc. * Copyright (C) 2006 Daniel P. Berrange * * This library is free software; you can redistribute it and/or @@ -2116,13 +2116,8 @@ remoteReadConfigFile (struct qemud_server *server, const char *filename) auth_unix_ro = REMOTE_AUTH_NONE; #endif - /* Just check the file is readable before opening it, otherwise - * libvirt emits an error. - */ - if (access (filename, R_OK) == -1) return 0; - conf = virConfReadFile (filename); - if (!conf) return 0; + if (!conf) return -1; /* * First get all the logging settings and activate them @@ -2301,7 +2296,7 @@ int main(int argc, char **argv) { struct sigaction sig_action; int sigpipe[2]; const char *pid_file = NULL; - const char *remote_config_file = SYSCONF_DIR "/libvirt/libvirtd.conf"; + const char *remote_config_file = NULL; int ret = 1; struct option opts[] = { @@ -2372,6 +2367,15 @@ int main(int argc, char **argv) { } } + if (remote_config_file == NULL) { + static const char *default_config_file + = SYSCONF_DIR "/libvirt/libvirtd.conf"; + remote_config_file = + (access(default_config_file, X_OK) == 0 + ? default_config_file + : "/dev/null"); + } + if (godaemon) { if (qemudGoDaemon() < 0) { VIR_ERROR(_("Failed to fork as daemon: %s"), strerror(errno)); diff --git a/src/conf.c b/src/conf.c index 9f0fc34..339a150 100644 --- a/src/conf.c +++ b/src/conf.c @@ -1,7 +1,7 @@ /** * conf.c: parser for a subset of the Python encoded Xen configuration files * - * Copyright (C) 2006, 2007, 2008 Red Hat, Inc. + * Copyright (C) 2006, 2007, 2008, 2009 Red Hat, Inc. * * See COPYING.LIB for the License of this software * @@ -712,7 +712,6 @@ virConfReadFile(const char *filename) } if ((len = virFileReadAll(filename, MAX_CONFIG_FILE_SIZE, &content)) < 0) { - virConfError(NULL, VIR_ERR_OPEN_FAILED, filename); return NULL; } -- 1.6.1.141.gfe98e From: Jim Meyering <meyering(a)redhat.com&gt; Date: Thu, 8 Jan 2009 19:58:19 +0100 Subject: [PATCH 2/3] tests: quiet virsh-all * tests/virsh-all: For now, ignore diagnostics and exit status, when running all virsh commands. --- tests/virsh-all | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/tests/virsh-all b/tests/virsh-all index f1c84a3..03ea466 100755 --- a/tests/virsh-all +++ b/tests/virsh-all @@ -1,7 +1,7 @@ #!/bin/sh # blindly run each and every command listed by "virsh help" -# Copyright (C) 2008 Free Software Foundation, Inc. +# Copyright (C) 2008, 2009 Free Software Foundation, Inc. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -35,7 +35,8 @@ test -n "$cmds" || framework_failure for i in $cmds; do echo testing $i... 1>&2 - virsh -c $test_url $i < /dev/null + # For now, just run the command and ignore output and exit status. + virsh -c $test_url $i < /dev/null > /dev/null 2>&1 done (exit $fail); exit $fail -- 1.6.1.141.gfe98e From: Jim Meyering <meyering(a)redhat.com&gt; Date: Thu, 8 Jan 2009 20:18:17 +0100 Subject: [PATCH 3/3] add two tests * tests/libvirtd-pool: New file. * tests/libvirtd-fail: New file. * tests/Makefile.am (test_scripts): Add omitted backslash, so that the virsh-all test is run. Add libvirtd-fail and libvirtd-pool. --- tests/Makefile.am | 24 ++++++++++++---------- tests/libvirtd-fail | 20 +++++++++++++++++++ tests/libvirtd-pool | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 86 insertions(+), 11 deletions(-) create mode 100755 tests/libvirtd-fail create mode 100755 tests/libvirtd-pool diff --git a/tests/Makefile.am b/tests/Makefile.am index d8b5e44..a3e4383 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -56,17 +56,19 @@ endif test_scripts = domainschematest if WITH_LIBVIRTD -test_scripts += \ - test_conf.sh \ - cpuset \ - daemon-conf \ - int-overflow \ - read-bufsiz \ - read-non-seekable \ - start \ - undefine \ - vcpupin - virsh-all +test_scripts += \ + cpuset \ + daemon-conf \ + int-overflow \ + libvirtd-fail \ + libvirtd-pool \ + read-bufsiz \ + read-non-seekable \ + start \ + test_conf.sh \ + undefine \ + vcpupin \ + virsh-all \ virsh-synopsis endif diff --git a/tests/libvirtd-fail b/tests/libvirtd-fail new file mode 100755 index 0000000..724d7c6 --- /dev/null +++ b/tests/libvirtd-fail @@ -0,0 +1,20 @@ +#!/bin/sh +# Ensure that libvirt fails when given nonexistent --config=FILE + +if test "$VERBOSE" = yes; then + set -x + libvirtd --version +fi + +test -z "$srcdir" && srcdir=$(pwd) +test -z "$abs_top_srcdir" && abs_top_srcdir=$(pwd)/.. +. "$srcdir/test-lib.sh" + +fail=0 + +libvirtd --config=no-such-file > log 2>&1 && fail=1 +cat <<\EOF > exp +Failed to open file 'no-such-file': No such file or directory +EOF + +compare exp log diff --git a/tests/libvirtd-pool b/tests/libvirtd-pool new file mode 100755 index 0000000..72afa12 --- /dev/null +++ b/tests/libvirtd-pool @@ -0,0 +1,53 @@ +#!/bin/sh +# Get coverage of libvirtd's config-parsing code. + +if test "$VERBOSE" = yes; then + set -x + libvirtd --version + virsh --version +fi + +test -z "$srcdir" && srcdir=$(pwd) +test -z "$abs_top_srcdir" && abs_top_srcdir=$(pwd)/.. +. "$srcdir/test-lib.sh" + +fail=0 + +libvirtd > log 2>&1 & pid=$! +sleep 1 + +virsh --connect qemu:///session \ + pool-define-as P dir src-host /src/path /src/dev S /target-path > out 2>&1 \ + || fail=1 +virsh --connect qemu:///session pool-dumpxml P >> out 2>&1 || fail=1 + +# remove random uuid +sed 's/<uuid>.*/-/' out > k && mv k out || fail=1 + +kill $pid + +cat <<EOF > exp +Pool P defined + +<pool type='dir'> + <name>P</name> + - + <capacity>0</capacity> + <allocation>0</allocation> + <available>0</available> + <source> + </source> + <target> + <path>/target-path</path> + <permissions> + <mode>0700</mode> + <owner>500</owner> + <group>500</group> + </permissions> + </target> +</pool> + +EOF + +compare exp out +compare /dev/null log -- 1.6.1.141.gfe98e