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ast_test.go
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ast_test.go
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package syntax
import (
"fmt"
"testing"
"time"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/promql"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/grafana/loki/v3/pkg/logql/log"
)
var labelBar, _ = ParseLabels("{app=\"bar\"}")
func Test_logSelectorExpr_String(t *testing.T) {
t.Parallel()
tests := []struct {
selector string
expectFilter bool
}{
{`{foo="bar"}`, false},
{`{foo="bar", bar!="baz"}`, false},
{`{foo="bar", bar!="baz"} != "bip" !~ ".+bop"`, true},
{`{foo="bar"} |= "baz" |~ "blip" |> "qux" !> "waldo" != "flip" !~ "flap"`, true},
{`{foo="bar", bar!="baz"} |= ""`, false},
{`{foo="bar", bar!="baz"} |= "" |= ip("::1")`, true},
{`{foo="bar", bar!="baz"} |= "" != ip("127.0.0.1")`, true},
{`{foo="bar", bar!="baz"} |~ ""`, false},
{`{foo="bar", bar!="baz"} |~ ".*"`, false},
{`{foo="bar", bar!="baz"} |= "" |= ""`, false},
{`{foo="bar", bar!="baz"} |~ "" |= "" |~ ".*"`, false},
{`{foo="bar", bar!="baz"} |> ""`, true},
{`{foo="bar", bar!="baz"} |> "<_>"`, true},
{`{foo="bar", bar!="baz"} |> "<_>" !> "<_> <_>"`, true},
{`{foo="bar", bar!="baz"} != "bip" !~ ".+bop" |> "<_> bop <_>" | json`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | logfmt`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | logfmt --strict`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | logfmt --strict --keep-empty`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | unpack | foo>5`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | pattern "<foo> bar <buzz>" | foo>5`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | logfmt | b>=10GB`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | logfmt | b=ip("127.0.0.1")`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | logfmt | b=ip("127.0.0.1") | level="error"`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | logfmt --strict b="foo" | b=ip("127.0.0.1") | level="error"`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | logfmt --strict --keep-empty b="foo" | b=ip("127.0.0.1") | level="error"`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | logfmt | b=ip("127.0.0.1") | level="error" | c=ip("::1")`, true}, // chain inside label filters.
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | regexp "(?P<foo>foo|bar)"`, true},
{`{foo="bar"} |= "baz" |~ "blip" != "flip" !~ "flap" | regexp "(?P<foo>foo|bar)" | ( ( foo<5.01 , bar>20ms ) or foo="bar" ) | line_format "blip{{.boop}}bap" | label_format foo=bar,bar="blip{{.blop}}"`, true},
{`{foo="bar"} | logfmt | counter>-1 | counter>=-1 | counter<-1 | counter<=-1 | counter!=-1 | counter==-1`, true},
}
for _, tt := range tests {
tt := tt
t.Run(tt.selector, func(t *testing.T) {
t.Parallel()
expr, err := ParseLogSelector(tt.selector, true)
if err != nil {
t.Fatalf("failed to parse log selector: %s", err)
}
p, err := expr.Pipeline()
if err != nil {
t.Fatalf("failed to get filter: %s", err)
}
if !tt.expectFilter {
require.Equal(t, log.NewNoopPipeline(), p)
}
if expr.String() != tt.selector {
t.Fatalf("error expected: %s got: %s", tt.selector, expr.String())
}
})
}
}
func Test_SampleExpr_String(t *testing.T) {
t.Parallel()
for _, tc := range []string{
`rate( ( {job="mysql"} |="error" !="timeout" ) [10s] )>-1`,
`rate( ( {job="mysql"} |="error" !="timeout" ) [10s] )`,
`absent_over_time( ( {job="mysql"} |="error" !="timeout" ) [10s] )`,
`absent_over_time( ( {job="mysql"} |="error" !="timeout" ) [10s] offset 10d )`,
`vector(123)`,
`sort(sum by(a) (rate( ( {job="mysql"} |="error" !="timeout" ) [10s] ) ))`,
`sort_desc(sum by(a) (rate( ( {job="mysql"} |="error" !="timeout" ) [10s] ) ))`,
`sum without(a) ( rate ( ( {job="mysql"} |="error" !="timeout" ) [10s] ) )`,
`sum by(a) (rate( ( {job="mysql"} |="error" !="timeout" ) [10s] ) )`,
`sum(count_over_time({job="mysql"}[5m]))`,
`sum(count_over_time({job="mysql"}[5m] offset 10m))`,
`sum(count_over_time({job="mysql"} | json [5m]))`,
`sum(count_over_time({job="mysql"} | json [5m] offset 10m))`,
`sum(count_over_time({job="mysql"} | logfmt [5m]))`,
`sum(count_over_time({job="mysql"} | logfmt --strict [5m] offset 10m))`,
`sum(count_over_time({job="mysql"} | pattern "<foo> bar <buzz>" | json [5m]))`,
`sum(count_over_time({job="mysql"} | unpack | json [5m]))`,
`sum(count_over_time({job="mysql"} | regexp "(?P<foo>foo|bar)" [5m]))`,
`sum(count_over_time({job="mysql"} | regexp "(?P<foo>foo|bar)" [5m] offset 10y))`,
`topk(10,sum(rate({region="us-east1"}[5m])) by (name))`,
`topk by (name)(10,sum(rate({region="us-east1"}[5m])))`,
`avg( rate( ( {job="nginx"} |= "GET" ) [10s] ) ) by (region)`,
`avg(min_over_time({job="nginx"} |= "GET" | unwrap foo[10s])) by (region)`,
`avg(min_over_time({job="nginx"} |= "GET" | unwrap foo[10s] offset 10m)) by (region)`,
`sum by (cluster) (count_over_time({job="mysql"}[5m]))`,
`sum by (cluster) (count_over_time({job="mysql"}[5m] offset 10m))`,
`sum by (cluster) (count_over_time({job="mysql"}[5m])) / sum by (cluster) (count_over_time({job="postgres"}[5m])) `,
`sum by (cluster) (count_over_time({job="mysql"}[5m] offset 10m)) / sum by (cluster) (count_over_time({job="postgres"}[5m] offset 10m)) `,
`
sum by (cluster) (count_over_time({job="postgres"}[5m])) /
sum by (cluster) (count_over_time({job="postgres"}[5m])) /
sum by (cluster) (count_over_time({job="postgres"}[5m]))
`,
`sum by (cluster) (count_over_time({job="mysql"}[5m])) / min(count_over_time({job="mysql"}[5m])) `,
`sum by (job) (
count_over_time({namespace="tns"} |= "level=error"[5m])
/
count_over_time({namespace="tns"}[5m])
)`,
`stdvar_over_time({app="foo"} |= "bar" | json | latency >= 250ms or ( status_code < 500 and status_code > 200)
| line_format "blip{{ .foo }}blop {{.status_code}}" | label_format foo=bar,status_code="buzz{{.bar}}" | unwrap foo [5m])`,
`stdvar_over_time({app="foo"} |= "bar" | json | latency >= 250ms or ( status_code < 500 and status_code > 200)
| line_format "blip{{ .foo }}blop {{.status_code}}" | label_format foo=bar,status_code="buzz{{.bar}}" | unwrap foo [5m] offset 10m)`,
`sum_over_time({namespace="tns"} |= "level=error" | json |foo>=5,bar<25ms|unwrap latency [5m])`,
`sum by (job) (
sum_over_time({namespace="tns"} |= "level=error" | json | foo=5 and bar<25ms | unwrap latency[5m])
/
count_over_time({namespace="tns"} | logfmt | label_format foo=bar[5m])
)`,
`sum by (job) (
sum_over_time({namespace="tns"} |= "level=error" | json | foo=5 and bar<25ms | unwrap bytes(latency)[5m])
/
count_over_time({namespace="tns"} | logfmt | label_format foo=bar[5m])
)`,
`sum by (job) (
sum_over_time(
{namespace="tns"} |= "level=error" | json | avg=5 and bar<25ms | unwrap duration(latency) [5m]
)
/
count_over_time({namespace="tns"} | logfmt | label_format foo=bar[5m])
)`,
`sum_over_time({namespace="tns"} |= "level=error" | json |foo>=5,bar<25ms | unwrap latency | __error__!~".*" | foo >5[5m])`,
`last_over_time({namespace="tns"} |= "level=error" | json |foo>=5,bar<25ms | unwrap latency | __error__!~".*" | foo >5[5m])`,
`first_over_time({namespace="tns"} |= "level=error" | json |foo>=5,bar<25ms | unwrap latency | __error__!~".*" | foo >5[5m])`,
`absent_over_time({namespace="tns"} |= "level=error" | json |foo>=5,bar<25ms | unwrap latency | __error__!~".*" | foo >5[5m])`,
`sum by (job) (
sum_over_time(
{namespace="tns"} |= "level=error" | json | avg=5 and bar<25ms | unwrap duration(latency) | __error__!~".*" [5m]
)
/
count_over_time({namespace="tns"} | logfmt | label_format foo=bar[5m])
)`,
`label_replace(
sum by (job) (
sum_over_time(
{namespace="tns"} |= "level=error" | json | avg=5 and bar<25ms | unwrap duration(latency) | __error__!~".*" [5m]
)
/
count_over_time({namespace="tns"} | logfmt | label_format foo=bar[5m])
),
"foo",
"$1",
"service",
"(.*):.*"
)
`,
`10 / (5/2)`,
`(count_over_time({job="postgres"}[5m])/2) or vector(2)`,
`10 / (count_over_time({job="postgres"}[5m])/2)`,
`{app="foo"} | json response_status="response.status.code", first_param="request.params[0]"`,
`label_replace(
sum by (job) (
sum_over_time(
{namespace="tns"} |= "level=error" | json | avg=5 and bar<25ms | unwrap duration(latency) | __error__!~".*" [5m] offset 1h
)
/
count_over_time({namespace="tns"} | logfmt | label_format foo=bar[5m] offset 1h)
),
"foo",
"$1",
"service",
"(.*):.*"
)
`,
`(((
sum by(typename,pool,commandname,colo)(sum_over_time({_namespace_="appspace", _schema_="appspace-1min", pool=~"r1testlvs", colo=~"slc|lvs|rno", env!~"(pre-production|sandbox)"} | logfmt | status!="0" | ( ( type=~"(?i)^(Error|Exception|Fatal|ERRPAGE|ValidationError)$" or typename=~"(?i)^(Error|Exception|Fatal|ERRPAGE|ValidationError)$" ) or status=~"(?i)^(Error|Exception|Fatal|ERRPAGE|ValidationError)$" ) | commandname=~"(?i).*|UNSET" | unwrap sumcount[5m])) / 60)
or on ()
((sum by(typename,pool,commandname,colo)(sum_over_time({_namespace_="appspace", _schema_="appspace-15min", pool=~"r1testlvs", colo=~"slc|lvs|rno", env!~"(pre-production|sandbox)"} | logfmt | status!="0" | ( ( type=~"(?i)^(Error|Exception|Fatal|ERRPAGE|ValidationError)$" or typename=~"(?i)^(Error|Exception|Fatal|ERRPAGE|ValidationError)$" ) or status=~"(?i)^(Error|Exception|Fatal|ERRPAGE|ValidationError)$" ) | commandname=~"(?i).*|UNSET" | unwrap sumcount[5m])) / 15) / 60))
or on ()
((sum by(typename,pool,commandname,colo) (sum_over_time({_namespace_="appspace", _schema_="appspace-1h", pool=~"r1testlvs", colo=~"slc|lvs|rno", env!~"(pre-production|sandbox)"} | logfmt | status!="0" | ( ( type=~"(?i)^(Error|Exception|Fatal|ERRPAGE|ValidationError)$" or typename=~"(?i)^(Error|Exception|Fatal|ERRPAGE|ValidationError)$" ) or status=~"(?i)^(Error|Exception|Fatal|ERRPAGE|ValidationError)$" ) | commandname=~"(?i).*|UNSET" | unwrap sumcount[5m])) / 60) / 60))`,
`{app="foo"} | logfmt code="response.code", IPAddress="host"`,
} {
t.Run(tc, func(t *testing.T) {
expr, err := ParseExpr(tc)
require.Nil(t, err)
expr2, err := ParseExpr(expr.String())
require.Nil(t, err)
AssertExpressions(t, expr, expr2)
})
}
}
func Test_SampleExpr_String_Fail(t *testing.T) {
t.Parallel()
for _, tc := range []string{
`topk(0, sum(rate({region="us-east1"}[5m])) by (name))`,
`topk by (name)(0,sum(rate({region="us-east1"}[5m])))`,
`bottomk(0, sum(rate({region="us-east1"}[5m])) by (name))`,
`bottomk by (name)(0,sum(rate({region="us-east1"}[5m])))`,
} {
t.Run(tc, func(t *testing.T) {
_, err := ParseExpr(tc)
require.ErrorContains(t, err, "parse error : invalid parameter (must be greater than 0)")
})
}
}
func Test_SampleExpr_Sort_Fail(t *testing.T) {
t.Parallel()
for _, tc := range []string{
`sort(sum by(a) (rate( ( {job="mysql"} |="error" !="timeout" ) [10s] ) )) by (app)`,
`sort_desc(sum by(a) (rate( ( {job="mysql"} |="error" !="timeout" ) [10s] ) )) by (app)`,
} {
t.Run(tc, func(t *testing.T) {
_, err := ParseExpr(tc)
require.ErrorContains(t, err, "sort and sort_desc doesn't allow grouping by")
})
}
}
func TestMatcherGroups(t *testing.T) {
for i, tc := range []struct {
query string
exp []MatcherRange
}{
{
query: `{job="foo"}`,
exp: []MatcherRange{
{
Matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "foo"),
},
},
},
},
{
query: `count_over_time({job="foo"}[5m]) / count_over_time({job="bar"}[5m] offset 10m)`,
exp: []MatcherRange{
{
Interval: 5 * time.Minute,
Matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "foo"),
},
},
{
Interval: 5 * time.Minute,
Offset: 10 * time.Minute,
Matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "bar"),
},
},
},
},
} {
t.Run(fmt.Sprint(i), func(t *testing.T) {
expr, err := ParseExpr(tc.query)
require.Nil(t, err)
out, err := MatcherGroups(expr)
require.Nil(t, err)
require.Equal(t, tc.exp, out)
})
}
}
func Test_NilFilterDoesntPanic(t *testing.T) {
t.Parallel()
for _, tc := range []string{
`{namespace="dev", container_name="cart"} |= "" |= "bloop"`,
`{namespace="dev", container_name="cart"} |= "bleep" |= ""`,
`{namespace="dev", container_name="cart"} |= "bleep" |= "" |= "bloop"`,
`{namespace="dev", container_name="cart"} |= "bleep" |= "" |= "bloop"`,
`{namespace="dev", container_name="cart"} |= "bleep" |= "bloop" |= ""`,
`{namespace="dev", container_name="cart"} !> ""`,
} {
t.Run(tc, func(t *testing.T) {
expr, err := ParseLogSelector(tc, true)
require.Nil(t, err)
p, err := expr.Pipeline()
require.Nil(t, err)
_, _, matches := p.ForStream(labelBar).Process(0, []byte("bleepbloop"))
require.True(t, matches)
})
}
}
type linecheck struct {
l string
e bool
}
func Test_FilterMatcher(t *testing.T) {
t.Parallel()
for _, tt := range []struct {
q string
expectedMatchers []*labels.Matcher
// test line against the resulting filter, if empty filter should also be nil
lines []linecheck
}{
{
`{app="foo",cluster=~".+bar"}`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
mustNewMatcher(labels.MatchRegexp, "cluster", ".+bar"),
},
nil,
},
{
`{app!="foo",cluster=~".+bar",bar!~".?boo"}`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchNotEqual, "app", "foo"),
mustNewMatcher(labels.MatchRegexp, "cluster", ".+bar"),
mustNewMatcher(labels.MatchNotRegexp, "bar", ".?boo"),
},
nil,
},
{
`{app="foo"} |= "foo"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foobar", true}, {"bar", false}},
},
{
`{app="foo"} |= "foo" != "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foobuzz", true}, {"bar", false}},
},
{
`{app="foo"} |= "foo" !~ "f.*b"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", true}, {"bar", false}, {"foobar", false}},
},
{
`{app="foo"} |= "foo" |~ "f.*b"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", false}, {"bar", false}, {"foobar", true}},
},
{
`{app="foo"} |~ "foo"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", true}, {"bar", false}, {"foobar", true}},
},
{
`{app="foo"} |> "foo <_>"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo bar", true}, {"foo", false}},
},
{
`{app="foo"} !> "foo <_>"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo bar", false}, {"foo", true}},
},
{
`{app="foo"} |~ "foo\\.bar\\.baz"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", false}, {"bar", false}, {"foo.bar.baz", true}},
},
{
"{app=\"foo\"} | logfmt | field =~ `foo\\.bar`",
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"field=foo", false}, {"field=bar", false}, {"field=foo.bar", true}},
},
{
`{app="foo"} | logfmt | duration > 1s and total_bytes < 1GB`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"duration=5m total_bytes=5kB", true}, {"duration=1s total_bytes=256B", false}, {"duration=0s", false}},
},
{
`{app="foo"} |= "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", true}, {"bar", true}, {"none", false}},
},
{
`{app="foo"} |= "test" |= "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test foo", true}, {"test bar", true}, {"none", false}},
},
{
`{app="foo"} |= "test" |= "foo" or "bar" or "baz"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test foo", true}, {"test bar", true}, {"test baz", true}, {"baz", false}, {"bar", false}, {"foo", false}, {"none", false}},
},
{
`{app="foo"} |= "test" |= "foo" or "bar" or "baz" |= "car"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"car test foo", true}, {"car test bar", true}, {"car test baz", true}, {"baz", false}, {"bar", false}, {"test", false}, {"foo", false}, {"car", false}, {"none", false}},
},
{
`{app="foo"} |= "test" |= "foo" or "bar" or "baz"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test foo", true}, {"test bar", true}, {"test baz", true}, {"none", false}},
},
{
`{app="foo"} |= "foo" or "bar" |= "buzz" or "fizz"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo buzz", true}, {"bar fizz", true}, {"foo", false}, {"bar", false}, {"none", false}},
},
{
`{app="foo"} |~ "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", true}, {"bar", true}, {"none", false}},
},
{
`{app="foo"} |~ "test" |~ "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test foo", true}, {"test bar", true}, {"none", false}},
},
{
`{app="foo"} |~ "test" |~ "foo" or "bar" or "baz"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test foo", true}, {"test bar", true}, {"test baz", true}, {"baz", false}, {"bar", false}, {"foo", false}, {"none", false}},
},
{
`{app="foo"} |~ "test" |~ "foo" or "bar" or "baz" |~ "car"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"car test foo", true}, {"car test bar", true}, {"car test baz", true}, {"baz", false}, {"bar", false}, {"test", false}, {"foo", false}, {"car", false}, {"none", false}},
},
{
`{app="foo"} != "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", false}, {"bar", false}, {"none", true}},
},
{
`{app="foo"} != "test" != "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test", false}, {"foo", false}, {"bar", false}, {"none", true}},
},
{
`{app="foo"} != "test" != "foo" or "bar" or "baz"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test", false}, {"foo", false}, {"bar", false}, {"baz", false}, {"none", true}},
},
{
`{app="foo"} != "test" != "foo" or "bar" or "baz" != "car"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test", false}, {"foo", false}, {"bar", false}, {"baz", false}, {"car", false}, {"none", true}},
},
{
`{app="foo"} |~ "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", true}, {"bar", true}, {"none", false}},
},
{
`{app="foo"} !~ "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", false}, {"bar", false}, {"none", true}},
},
{
`{app="foo"} !~ "test" !~ "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test", false}, {"foo", false}, {"bar", false}, {"none", true}},
},
{
`{app="foo"} !~ "test" !~ "foo" or "bar" or "baz"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test", false}, {"foo", false}, {"bar", false}, {"baz", false}, {"none", true}},
},
{
`{app="foo"} !~ "test" !~ "foo" or "bar" or "baz" !~ "car"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test", false}, {"foo", false}, {"bar", false}, {"baz", false}, {"car", false}, {"none", true}},
},
{
`{app="foo"} |= ip("127.0.0.1") or "foo"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", true}, {"bar", false}, {"127.0.0.2", false}, {"127.0.0.1", true}},
},
{
`{app="foo"} != ip("127.0.0.1") or "foo"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", false}, {"bar", true}, {"127.0.0.2", true}, {"127.0.0.1", false}},
},
{
`{app="foo"} |> "<_>foo<_>" or "<_>bar<_>"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test foo test", true}, {"test bar test", true}, {"none", false}},
},
{
`{app="foo"} |> "<_>foo<_>" or "<_>bar<_>" or "<_>baz<_>"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"test foo test", true}, {"test bar test", true}, {"test baz test", true}, {"none", false}},
},
{
`{app="foo"} !> "foo" or "bar"`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"foo", false}, {"bar", false}, {"none", true}},
},
{
`{app="foo"} | logfmt | duration > -1s`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"duration=5m", true}, {"duration=1s", true}, {"duration=0s", true}, {"duration=-5m", false}},
},
{
`{app="foo"} | logfmt | count > -1`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"count=5", true}, {"count=1", true}, {"count=0", true}, {"count=-5", false}},
},
{
`{app="foo"} | logfmt | counter <= -1`,
[]*labels.Matcher{
mustNewMatcher(labels.MatchEqual, "app", "foo"),
},
[]linecheck{{"counter=1", false}, {"counter=0", false}, {"counter=-1", true}, {"counter=-2", true}},
},
} {
tt := tt
t.Run(tt.q, func(t *testing.T) {
t.Parallel()
expr, err := ParseLogSelector(tt.q, true)
assert.Nil(t, err)
AssertMatchers(t, tt.expectedMatchers, expr.Matchers())
p, err := expr.Pipeline()
assert.Nil(t, err)
if tt.lines == nil {
assert.Equal(t, p, log.NewNoopPipeline())
} else {
sp := p.ForStream(labelBar)
for _, lc := range tt.lines {
_, _, matches := sp.Process(0, []byte(lc.l))
assert.Equalf(t, lc.e, matches, "query for line '%s' was %v and not %v", lc.l, matches, lc.e)
}
}
})
}
}
func TestOrLineFilterTypes(t *testing.T) {
for _, tt := range []struct {
ty log.LineMatchType
}{
{log.LineMatchEqual},
{log.LineMatchNotEqual},
{log.LineMatchRegexp},
{log.LineMatchNotRegexp},
{log.LineMatchPattern},
{log.LineMatchNotPattern},
} {
t.Run("right inherits left's type", func(t *testing.T) {
left := &LineFilterExpr{LineFilter: LineFilter{Ty: tt.ty, Match: "something"}}
right := &LineFilterExpr{LineFilter: LineFilter{Ty: log.LineMatchEqual, Match: "something"}}
_ = newOrLineFilter(left, right)
require.Equal(t, tt.ty, right.Ty)
require.Equal(t, tt.ty, left.Ty)
})
t.Run("right inherits left's type with multiple or filters", func(t *testing.T) {
f1 := &LineFilterExpr{LineFilter: LineFilter{Ty: tt.ty, Match: "something"}}
f2 := &LineFilterExpr{LineFilter: LineFilter{Ty: log.LineMatchEqual, Match: "something"}}
f3 := &LineFilterExpr{LineFilter: LineFilter{Ty: log.LineMatchEqual, Match: "something"}}
_ = newOrLineFilter(f1, newOrLineFilter(f2, f3))
require.Equal(t, tt.ty, f1.Ty)
require.Equal(t, tt.ty, f2.Ty)
require.Equal(t, tt.ty, f3.Ty)
})
}
}
func TestStringer(t *testing.T) {
for _, tc := range []struct {
in string
out string
}{
{
in: `1 > 1 > 1`,
out: `0`,
},
{
in: `1.6`,
out: `1.6`,
},
{
in: `1 > 1 > bool 1`,
out: `0`,
},
{
in: `1 > bool 1 > count_over_time({foo="bar"}[1m])`,
out: `(0 > count_over_time({foo="bar"}[1m]))`,
},
{
in: `1 > bool 1 > bool count_over_time({foo="bar"}[1m])`,
out: `(0 > bool count_over_time({foo="bar"}[1m]))`,
},
{
in: `0 > count_over_time({foo="bar"}[1m])`,
out: `(0 > count_over_time({foo="bar"}[1m]))`,
},
{
in: `{app="foo"} |= "foo" or "bar"`,
out: `{app="foo"} |= "foo" or "bar"`,
},
{
in: `{app="foo"} |= "foo" or "bar" or "baz"`,
out: `{app="foo"} |= "foo" or "bar" or "baz"`,
},
{
in: `{app="foo"} |= "foo" or "bar" or "baz" |= "car"`,
out: `{app="foo"} |= "foo" or "bar" or "baz" |= "car"`,
},
{
in: `{app="foo"} |= "foo" or "bar" or "baz" |= "car" |= "a" or "b" or "c"`,
out: `{app="foo"} |= "foo" or "bar" or "baz" |= "car" |= "a" or "b" or "c"`,
},
{
in: `{app="foo"} |~ "foo" or "bar" or "baz"`,
out: `{app="foo"} |~ "foo" or "bar" or "baz"`,
},
{
in: `{app="foo"} |= "foo" or "bar" |= "buzz" or "fizz"`,
out: `{app="foo"} |= "foo" or "bar" |= "buzz" or "fizz"`,
},
{
out: `{app="foo"} |= "foo" or "bar" |~ "buzz|fizz"`,
in: `{app="foo"} |= "foo" or "bar" |~ "buzz|fizz"`,
},
{
in: `{app="foo"} |= ip("127.0.0.1") or "foo"`,
out: `{app="foo"} |= ip("127.0.0.1") or "foo"`,
},
{
in: `{app="foo"} |= "foo" or ip("127.0.0.1")`,
out: `{app="foo"} |= "foo" or ip("127.0.0.1")`,
},
{
in: `{app="foo"} |~ ip("127.0.0.1") or "foo"`,
out: `{app="foo"} |~ ip("127.0.0.1") or "foo"`,
},
{
in: `{app="foo"} |> "foo <_> baz" or "foo <_>"`,
out: `{app="foo"} |> "foo <_> baz" or "foo <_>"`,
},
{
in: `{app="foo"} |> "foo <_> baz" or "foo <_>" |> "foo <_> baz"`,
out: `{app="foo"} |> "foo <_> baz" or "foo <_>" |> "foo <_> baz"`,
},
{ // !(A || B) == !A && !B
in: `{app="foo"} != "foo" or "bar"`,
out: `{app="foo"} != "foo" != "bar"`,
},
{
in: `{app="foo"} != "test" != "foo" or "bar"`,
out: `{app="foo"} != "test" != "foo" != "bar"`,
},
{
in: `{app="foo"} != "test" != "foo" or "bar" or "baz"`,
out: `{app="foo"} != "test" != "foo" != "bar" != "baz"`,
},
{
in: `{app="foo"} != "foo" or "bar" or "baz" != "car"`,
out: `{app="foo"} != "foo" != "bar" != "baz" != "car"`,
},
{
in: `{app="foo"} != "foo" or "bar" or "baz" != "car" != "a" or "b" or "c"`,
out: `{app="foo"} != "foo" != "bar" != "baz" != "car" != "a" != "b" != "c"`,
},
{
// Mix of != and |=
in: `{app="foo"} |= "foo" or "bar" or "baz" != "car" != "a" or "b" or "c"`,
out: `{app="foo"} |= "foo" or "bar" or "baz" != "car" != "a" != "b" != "c"`,
},
{
in: `{app="foo"} !~ "foo" or "bar"`,
out: `{app="foo"} !~ "foo" !~ "bar"`,
},
{
in: `{app="foo"} !~ "test" !~ "foo" or "bar"`,
out: `{app="foo"} !~ "test" !~ "foo" !~ "bar"`,
},
{
in: `{app="foo"} !~ "test" !~ "foo" or "bar" or "baz"`,
out: `{app="foo"} !~ "test" !~ "foo" !~ "bar" !~ "baz"`,
},
{
in: `{app="foo"} !~ "foo" or "bar" or "baz" !~ "car"`,
out: `{app="foo"} !~ "foo" !~ "bar" !~ "baz" !~ "car"`,
},
{
in: `{app="foo"} !~ "foo" or "bar" or "baz" !~ "car" !~ "a" or "b" or "c"`,
out: `{app="foo"} !~ "foo" !~ "bar" !~ "baz" !~ "car" !~ "a" !~ "b" !~ "c"`,
},
{
// Mix of !~ and |~
in: `{app="foo"} |~ "foo" or "bar" or "baz" !~ "car" !~ "a" or "b" or "c"`,
out: `{app="foo"} |~ "foo" or "bar" or "baz" !~ "car" !~ "a" !~ "b" !~ "c"`,
},
{
in: `{app="foo"} != ip("127.0.0.1") or "foo"`,
out: `{app="foo"} != ip("127.0.0.1") != "foo"`,
},
{
in: `{app="foo"} !~ ip("127.0.0.1") or "foo"`,
out: `{app="foo"} !~ ip("127.0.0.1") !~ "foo"`,
},
{
in: `{app="foo"} !> "<_> foo <_>" or "foo <_>" !> "foo <_> baz"`,
out: `{app="foo"} !> "<_> foo <_>" !> "foo <_>" !> "foo <_> baz"`,
},
} {
t.Run(tc.in, func(t *testing.T) {
expr, err := ParseExpr(tc.in)
require.Nil(t, err)
require.Equal(t, tc.out, expr.String())
})
}
}
func BenchmarkContainsFilter(b *testing.B) {
lines := [][]byte{
[]byte("hello world foo bar"),
[]byte("bar hello world for"),
[]byte("hello world foobar and the bar and more bar until the end"),
[]byte("hello world foobar and the bar and more bar and more than one hundred characters for sure until the end"),
[]byte("hello world foobar and the bar and more bar and more than one hundred characters for sure until the end and yes bar"),
}
benchmarks := []struct {
name string
expr string
}{
{
"AllMatches",
`{app="foo"} |= "foo" |= "hello" |= "world" |= "bar" |> "<_> world <_>"`,
},
{
"OneMatches",
`{app="foo"} |= "foo" |= "not" |= "in" |= "there" |> "yet"`,
},
{
"MixedFiltersTrue",
`{app="foo"} |= "foo" != "not" |~ "hello.*bar" != "there" |= "world" |> "<_> more than one <_>"`,
},
{
"MixedFiltersFalse",
`{app="foo"} |= "baz" != "not" |~ "hello.*bar" != "there" |= "world" !> "<_> more than one"`,
},
{
"GreedyRegex",
`{app="foo"} |~ "hello.*bar.*"`,
},
{
"NonGreedyRegex",
`{app="foo"} |~ "hello.*?bar.*?"`,
},
{
"ReorderedRegex",
`{app="foo"} |~ "hello.*?bar.*?" |= "not"`,
},
}
for _, bm := range benchmarks {
b.Run(bm.name, func(b *testing.B) {
expr, err := ParseLogSelector(bm.expr, false)
if err != nil {
b.Fatal(err)
}
p, err := expr.Pipeline()
if err != nil {
b.Fatal(err)
}
b.ResetTimer()
sp := p.ForStream(labelBar)
for i := 0; i < b.N; i++ {
for _, line := range lines {
sp.Process(0, line)
}
}
})
}
}
func Test_parserExpr_Parser(t *testing.T) {
tests := []struct {
name string
op string
param string
want log.Stage
wantErr bool
wantPanic bool
}{
{"json", OpParserTypeJSON, "", log.NewJSONParser(), false, false},
{"unpack", OpParserTypeUnpack, "", log.NewUnpackParser(), false, false},
{"pattern", OpParserTypePattern, "<foo> bar <buzz>", mustNewPatternParser("<foo> bar <buzz>"), false, false},
{"pattern err", OpParserTypePattern, "bar", nil, true, true},
{"regexp", OpParserTypeRegexp, "(?P<foo>foo)", mustNewRegexParser("(?P<foo>foo)"), false, false},
{"regexp err ", OpParserTypeRegexp, "foo", nil, true, true},
{"unknown op", "DummyOp", "", nil, true, false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var e *LabelParserExpr
if tt.wantPanic {
require.Panics(t, func() { e = newLabelParserExpr(tt.op, tt.param) })
return
}
e = newLabelParserExpr(tt.op, tt.param)
got, err := e.Stage()
if (err != nil) != tt.wantErr {
t.Errorf("parserExpr.Parser() error = %v, wantErr %v", err, tt.wantErr)
return
}
if tt.wantErr {
require.Nil(t, got)
} else {
require.Equal(t, tt.want, got)
}
})
}
}
func Test_parserExpr_String(t *testing.T) {
tests := []struct {
name string
op string
param string
want string
}{
{"valid regexp", OpParserTypeRegexp, "foo", `| regexp "foo"`},
{"empty regexp", OpParserTypeRegexp, "", `| regexp ""`},
{"valid pattern", OpParserTypePattern, "buzz", `| pattern "buzz"`},
{"empty pattern", OpParserTypePattern, "", `| pattern ""`},
{"valid json", OpParserTypeJSON, "", `| json`},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
l := LabelParserExpr{
Op: tt.op,
Param: tt.param,
}
require.Equal(t, tt.want, l.String())
})
}
}
func mustNewRegexParser(re string) log.Stage {
r, err := log.NewRegexpParser(re)
if err != nil {
panic(err)
}
return r
}
func mustNewPatternParser(p string) log.Stage {
r, err := log.NewPatternParser(p)
if err != nil {
panic(err)
}
return r
}
func Test_canInjectVectorGrouping(t *testing.T) {
tests := []struct {
vecOp string
rangeOp string
want bool
}{
{OpTypeSum, OpRangeTypeBytes, true},
{OpTypeSum, OpRangeTypeBytesRate, true},
{OpTypeSum, OpRangeTypeSum, true},
{OpTypeSum, OpRangeTypeRate, true},
{OpTypeSum, OpRangeTypeCount, true},
{OpTypeSum, OpRangeTypeAvg, false},
{OpTypeSum, OpRangeTypeMax, false},
{OpTypeSum, OpRangeTypeQuantile, false},
{OpTypeSum, OpRangeTypeStddev, false},
{OpTypeSum, OpRangeTypeStdvar, false},
{OpTypeSum, OpRangeTypeMin, false},
{OpTypeSum, OpRangeTypeMax, false},
{OpTypeAvg, OpRangeTypeBytes, false},
{OpTypeCount, OpRangeTypeBytesRate, false},
{OpTypeBottomK, OpRangeTypeSum, false},
{OpTypeMax, OpRangeTypeRate, false},
{OpTypeMin, OpRangeTypeCount, false},
{OpTypeTopK, OpRangeTypeCount, false},
}
for _, tt := range tests {
t.Run(tt.vecOp+"_"+tt.rangeOp, func(t *testing.T) {
if got := canInjectVectorGrouping(tt.vecOp, tt.rangeOp); got != tt.want {
t.Errorf("canInjectVectorGrouping() = %v, want %v", got, tt.want)
}
})
}
}
func Test_MergeBinOpVectors_Filter(t *testing.T) {
res, err := MergeBinOp(
OpTypeGT,
&promql.Sample{F: 2},
&promql.Sample{F: 0},
false,
true,
true,
)
require.NoError(t, err)
// ensure we return the left hand side's value (2) instead of the
// comparison operator's result (1: the truthy answer)
require.Equal(t, &promql.Sample{F: 2}, res)
}
func TestFilterReordering(t *testing.T) {
t.Run("it makes sure line filters are as early in the pipeline stages as possible", func(t *testing.T) {
logExpr := `{container_name="app"} |= "foo" |= "next" | logfmt |="bar" |="baz" | line_format "{{.foo}}" |="1" |="2" | logfmt |="3"`
l, err := ParseExpr(logExpr)
require.NoError(t, err)
stages := l.(*PipelineExpr).MultiStages.reorderStages()
require.Len(t, stages, 5)
require.Equal(t, `|= "foo" |= "next" |= "bar" |= "baz" | logfmt | line_format "{{.foo}}" |= "1" |= "2" |= "3" | logfmt`, MultiStageExpr(stages).String())
})