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test: add tests for 'ceph.conf' parser and writer

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These tests attempt to cover most of Ceph's config parser's grammar,
including all of its syntax quirks [0].

Each case is tested against two testing subroutines:

  1. The parser's output is compared with the expected output.

  2. The writer's output is parsed again ant then compared with the
     expected output.

[0]: https://git.proxmox.com/?p=ceph.git;a=blob;f=ceph/src/common/ConfUtils.cc;h=2f78fd02bf9e27467275752e6f3bca0c5e3946ce;hb=e9fe820e7fffd1b7cde143a9f77653b73fcec748#l144

Signed-off-by: Max Carrara <m.carrara@proxmox.com>
Tested-by: Friedrich Weber <f.weber@proxmox.com>
This commit is contained in:
Max Carrara 2024-04-02 16:55:14 +02:00 committed by Fabian Grünbichler
parent e8dbfc506c
commit 094f3f901f
4 changed files with 808 additions and 0 deletions
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1
src/Makefile
View File

@ -15,6 +15,7 @@ install: PVE bin udev-rbd
test:
perl -I. -T -e "use PVE::CLI::pvesm; PVE::CLI::pvesm->verify_api();"
$(MAKE) -C test
$(MAKE) -C PVE test
.PHONY: clean
clean:

4
src/PVE/Makefile
View File

@ -9,4 +9,8 @@ install:
make -C API2 install
make -C CLI install
.PHONY: test
test:
$(MAKE) -C test test
clean:

9
src/PVE/test/Makefile Normal file
View File

@ -0,0 +1,9 @@
all:
.PHONY: test
test: test_ceph_conf_parse_write
.PHONY: test_ceph_conf_parse_write
test_ceph_conf_parse_write: ceph_conf_parse_write_test.pl
./ceph_conf_parse_write_test.pl

794
src/PVE/test/ceph_conf_parse_write_test.pl Executable file
View File

@ -0,0 +1,794 @@
#!/usr/bin/env perl
use strict;
use warnings;
use lib qw(../..);
use Test::More;
use PVE::CephConfig;
# An array of test cases.
# Each test case is comprised of the following keys:
# description => to identify a single test
# expected_cfg => the hash that parse_ceph_config should return
# raw => the raw content of the file to test
my $tests = [
{
description => 'empty file',
expected_cfg => {},
raw => <<~EOF,
EOF
},
{
description => 'file without section',
expected_cfg => {},
raw => <<~EOF,
While Ceph's format doesn't allow this, we do, because it makes things simpler
foo = bar
arbitrary text can go here
Rust is better than Perl
EOF
},
{
description => 'single section',
expected_cfg => {
foo => {
bar => 'baz',
},
},
raw => <<~EOF,
[foo]
bar = baz
EOF
},
{
description => 'single section, no key-value pairs',
expected_cfg => {
foo => {},
},
raw => <<~EOF,
[foo]
EOF
},
{
description => 'single section, whitespace before key',
expected_cfg => {
foo => {
bar => 'baz',
},
},
raw => <<~EOF,
[foo]
\t bar = baz
EOF
},
{
description => 'single section, section header with preceding whitespace',
expected_cfg => {
foo => {
bar => 'baz',
},
},
raw => <<~EOF,
\t [foo]
bar = baz
EOF
},
{
description => 'single section, section header with comment',
expected_cfg => {
foo => {
bar => 'baz',
},
},
raw => <<~EOF,
[foo] # some comment
bar = baz
EOF
},
{
description => 'single section, section header ' .
'with preceding whitespace and comment',
expected_cfg => {
foo => {
bar => 'baz',
},
},
raw => <<~EOF,
\t [foo] ; some comment
bar = baz
EOF
},
{
description => 'single section, arbitrary text before section',
expected_cfg => {
foo => {
bar => 'baz',
},
},
raw => <<~EOF,
Rust is better than Perl
This text is ignored by our parser, because it makes things simpler
[foo]
bar = baz
EOF
},
{
description => 'single section, invalid key-value pairs',
expected_cfg => {
foo => {
bar => 'baz',
},
},
raw => <<~EOF,
[foo]
this here will cause a warning and is ignored
bar = baz
as well as this
EOF
},
{
description => 'single section, multiple key-value pairs',
expected_cfg => {
foo => {
one => 1,
two => 2,
three => 3,
},
},
raw => <<~EOF,
[foo]
one = 1
two = 2
three = 3
EOF
},
{
description => 'multiple sections with whitespace in section headers',
expected_cfg => {
'foo bar' => {},
' quo qux ' => {},
},
raw => <<~EOF,
[foo bar]
[ quo qux ]
EOF
},
{
description => 'single section with whitespace in section header '
. 'and multiple key-value pair',
expected_cfg => {
'foo bar' => {
one => 1,
two => 2,
},
' quo ' => {
three => 3,
},
},
raw => <<~EOF,
[foo bar]
one = 1
two = 2
[ quo ]
three = 3
EOF
},
{
description => 'single section, numeric key-value pairs',
expected_cfg => {
foo => {
'0' => 0,
'1' => 1,
'2' => 0,
'3' => 1,
'3.14' => 1.414,
},
},
raw => <<~EOF,
[foo]
0 = 0
1 = 1
2 = 0
3 = 1
3.14 = 1.414
EOF
},
{
description => 'single section, keys with single-quoted values',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[foo]
bar = 'baz'
quo = 'qux'
EOF
},
{
description => 'single section, keys with double-quoted values',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[foo]
bar = "baz"
quo = "qux"
EOF
},
{
description => 'single section, keys with quoted values, '
. 'comment literals within quotes',
expected_cfg => {
foo => {},
},
raw => <<~EOF,
[foo]
one = "1;1"
two = "2#2"
three = '3;3'
four = '4#4'
EOF
},
{
description => 'single section, keys with quoted values, '
. 'escaped comment literals within quotes',
expected_cfg => {
foo => {
one => '1;1',
two => '2#2',
three => '3;3',
four => '4#4',
},
},
raw => <<~EOF,
[foo]
one = "1\\;1"
two = "2\\#2"
three = '3\\;3'
four = '4\\#4'
EOF
},
{
description => 'single section, keys with quoted values, '
. 'comments after values',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[foo]
bar = "baz" ; some comment
quo = 'qux' # another comment
EOF
},
{
description => 'single section, keys with quoted values, '
. 'continued lines after quotes',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[foo]
bar = "baz"\\
quo = 'qux'\\
EOF
},
{
description => 'single section, keys with quoted values, '
. 'continued lines with comments after quotes',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[foo]
bar = "baz"\\
# believe it or not, this is valid syntax
quo = 'qux'\\
\\
\\
\\
\t \t ; and it "supports" trailing whitespace for some reason
EOF
},
{
description => 'single section, key-value pairs with whitespace',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[foo]
\t bar \t =\t \tbaz\t
quo\t=\tqux
EOF
},
{
description => 'single section, key-value pairs without whitespace',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[foo]
bar=baz
quo=qux
EOF
},
{
description => 'single section, key-value pairs with repeated whitespace '
. 'in key names',
expected_cfg => {
foo => {
'one_space' => 1,
'two_spaces' => 2,
'three_spaces' => 3,
},
},
raw => <<~EOF,
[foo]
one space = 1
two spaces = 2
three spaces = 3
EOF
},
{
description => 'single section, key-value pairs with whitespace and '
. 'complex whitespace in key names',
expected_cfg => {
foo => {
'one_two' => 'foo',
'three_four' => 'bar',
'five_six' => 'baz',
},
},
raw => <<~EOF,
[foo]
\t one two \t =\t \tfoo\t
three \t four\t=\tbar\t
five six=baz
EOF
},
{
description => 'single section, key-value pairs with repeated whitespace '
. 'and underlines in key names',
expected_cfg => {
foo => {
'one_ul' => 2,
'two_ul' => 0,
'two__ul' => 0,
'odd___name' => 4,
},
},
raw => <<~EOF,
[foo]
# these are equivalent
one ul = 0
one_ul = 1
one ul = 2
# these are not
two ul = 0
two__ul = 0
# these are equivalent
odd _ name = 0
odd _ name = 1
odd__ name = 2
odd __name = 3
odd___name = 4
EOF
},
{
description => 'single section with line continuations, multiple key-value pairs',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[\\
f\\
o\\
o\\
]\\
bar = baz
quo = qux
EOF
},
{
description => 'single section, key-value pairs with continued lines in keys',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[foo]
bar\\
= baz
\\
quo\\
\\
\\
\\
\\
\\
\\
= qux
EOF
},
{
description => 'multiple sections with escaped comment literals, '
. 'multiple key-value pairs',
expected_cfg => {
'f;oo' => {
one => 1,
two => 2,
},
'b#ar' => {
three => 3,
four => 4,
},
'###' => {
five => 5,
},
';;;' => {
six => 6,
},
},
raw => <<~EOF,
[f\\;oo]
one = 1
two = 2
[b\\#ar]
three = 3
four = 4
[\\#\\#\\#]
five = 5
[\\;\\;\\;]
six = 6
EOF
},
{
description => 'single section, key-value pairs with comments',
expected_cfg => {
foo => {
bar => 'baz',
quo => 'qux',
},
},
raw => <<~EOF,
[foo]
; preceding comment
bar = baz # some comment
### comment inbetween
;; another one for good measure
quo = qux ; another comment
# trailing comment
EOF
},
{
description => 'single section, key-value pairs with continued lines',
expected_cfg => {
foo => {
bar => 'baz continued baz',
quo => "qux continued \tqux",
},
},
raw => <<~EOF,
[foo]
bar = baz \\
continued baz
quo =\\
qux \\
continued \\
\tqux
EOF
},
{
description => 'single section, key-value pairs with ' .
'continued lines and comments',
expected_cfg => {
foo => {
bar => 'baz continued baz',
quo => 'qux continued qux',
key => 'value',
},
},
raw => <<~EOF,
[foo]
bar = baz \\
continued baz # comments are allowed here
quo =\\
qux \\
continued \\
qux # but this continuation will be ignored, because it's in a comment: \\
key = value\\
# really weird comment
EOF
},
{
description => 'single section, key-value pairs with ' .
'escaped commment literals in values',
expected_cfg => {
foo => {
bar => 'baz#escaped',
quo => 'qux;escaped',
},
},
raw => <<~EOF,
[foo]
bar = baz\\#escaped
quo = qux\\;escaped
EOF
},
{
description => 'single section, key-value pairs with ' .
'continued lines and escaped commment literals in values',
expected_cfg => {
foo => {
bar => 'baz#escaped',
quo => 'qux;escaped continued# escaped done',
},
},
raw => <<~EOF,
[foo]
bar = baz\\#escaped
quo = qux\\;escaped\\
continued\\# escaped \\
done
EOF
},
{
description => 'single section, key-value pairs with escaped comment '
. 'literals in key names',
expected_cfg => {
foo => {
'b#a#r' => 'baz',
';q;uo' => 'qux',
'#' => 1,
'##' => 2,
'###' => 3,
';' => 1,
';;' => 2,
';;;' => 3,
},
},
raw => <<~EOF,
[foo]
b\\#a\\#r = baz
\\;q\\;uo = qux
\\# = 1
\\#\\# = 2
\\#\\#\\# = 3
\\; = 1
\\;\\; = 2
\\;\\;\\; = 3
EOF
},
{
description => 'multiple sections, multiple key-value pairs',
expected_cfg => {
foo => {
one => 1,
two => 2,
},
bar => {
three => 3,
four => 4,
},
},
raw => <<~EOF,
[foo]
one = 1
two = 2
[bar]
three = 3
four = 4
EOF
},
{
description => 'multiple sections, multiple key-value pairs, '
. 'comments inline and inbetween, escaped comment literals, '
. 'continued lines, arbitrary whitespace',
# NOTE: We don't use '/etc/pve/priv/$cluster.$name.keyring' as value for
# 'keyring' below, because `ceph-conf` will actually substitute those.
# Because we don't care for that (not the parser's or writer's job) we
# just omit the dollar signs.
expected_cfg => {
global => {
auth_client_required => 'cephx',
auth_cluster_required => 'cephx',
auth_service_required => 'cephx',
cluster_network => '172.16.65.0/24',
fsid => '0e2f72eb-ffff-ffff-ffff-f480790a5b07',
mon_allow_pool_delete => 'true',
mon_host => '172.16.65.12 172.16.65.13 172.16.65.11',
ms_bind_ipv4 => 'true',
osd_pool_default_min_size => '2',
osd_pool_default_size => '3',
public_network => '172.16.65.0/24',
},
client => {
keyring => '/etc/pve/priv/cluster.name.keyring',
},
'mon.ceph-01' => {
public_addr => '172.16.65.11',
},
'mon.ceph-02' => {
public_addr => '172.16.65.12',
},
'mon.ceph-03' => {
public_addr => '172.16.65.13',
},
'some arbitrary section' => {
some_key => 'foo;bar;baz',
},
},
raw => <<~EOF,
[global]
auth_client_required = cephx
auth_cluster_required = \\
cephx
auth_service_required = cephx
cluster_network = 172.16.65.0/24
fsid = 0e2f72eb-ffff-ffff-ffff-f480790a5b07
mon_allow_pool_delete = true
mon_host = \\
172.16.65.12 \\
172.16.65.13 \\
172.16.65.11 # why is this one last? nobody knows for sure!
ms_bind_ipv4 = true
osd_pool_default_min_size =\\
\\
\\
\\
\\
\\
\\
\\
\\
2
osd_pool_default_size =\\
3
public_network = 172.16.65.0/24 # some comment
[client] ### another comment
keyring = /etc/pve/priv/cluster.name.keyring# cheeky trailing comment
## mon config ##
[mon.ceph-01]
public_addr = 172.16.65.11 ; foo
;; another arbitrary comment ;;
[mon.ceph-02] ;; very important comment here
public_addr = "172.16.65.12" # bar
[mon.ceph-03]
public_addr = '172.16.65.13' # baz
[some arbitrary section]
some key = "foo\\;bar\\;baz" # I am a comment
EOF
},
];
sub test_parse_ceph_config {
my ($case) = @_;
my $desc = "parse_ceph_config: $case->{description}";
my $parse_result = eval { PVE::CephConfig::parse_ceph_config(undef, $case->{raw}) };
if ($@) {
fail($desc);
diag('Failed to parse config:');
diag($@);
return;
}
if (!is_deeply($parse_result, $case->{expected_cfg}, $desc)) {
diag("=== Expected ===");
diag(explain($case->{expected_cfg}));
diag("=== Got ===");
diag(explain($parse_result));
}
}
sub test_write_ceph_config {
my ($case) = @_;
my $desc = "write_ceph_config: $case->{description}";
my $write_result = eval { PVE::CephConfig::write_ceph_config(undef, $case->{expected_cfg}) };
if ($@) {
fail($desc);
diag('Failed to write config:');
diag($@);
return;
}
my $parse_result = eval { PVE::CephConfig::parse_ceph_config(undef, $write_result) };
if ($@) {
fail($desc);
diag('Failed to parse previously written config:');
diag($@);
return;
}
if (!is_deeply($parse_result, $case->{expected_cfg}, $desc)) {
diag("=== Expected ===");
diag(explain($case->{expected_cfg}));
diag("=== Got ===");
diag(explain($parse_result));
diag("=== Write Output ===");
diag($write_result);
}
}
sub main {
my $test_subs = [
\&test_parse_ceph_config,
\&test_write_ceph_config,
];
plan(tests => scalar($tests->@*) * scalar($test_subs->@*));
for my $case ($tests->@*) {
for my $test_sub ($test_subs->@*) {
eval {
# suppress warnings here to make output less noisy for certain tests
local $SIG{__WARN__} = sub {};
$test_sub->($case);
};
warn "$@\n" if $@;
};
}
done_testing();
}
main();