VictoriaMetrics/lib/logstorage/pipe_replace_regexp_test.go

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2024-05-25 19:36:16 +00:00
package logstorage
import (
"regexp"
"testing"
)
func TestParsePipeReplaceRegexpSuccess(t *testing.T) {
f := func(pipeStr string) {
t.Helper()
expectParsePipeSuccess(t, pipeStr)
}
f(`replace_regexp (foo, bar)`)
f(`replace_regexp ("foo[^ ]+bar|baz", "bar${1}x$0")`)
f(`replace_regexp (" ", "") at x`)
f(`replace_regexp if (x:y) ("-", ":") at a`)
f(`replace_regexp (" ", "") at x limit 10`)
f(`replace_regexp if (x:y) (" ", "") at foo limit 10`)
}
func TestParsePipeReplaceRegexpFailure(t *testing.T) {
f := func(pipeStr string) {
t.Helper()
expectParsePipeFailure(t, pipeStr)
}
f(`replace_regexp`)
f(`replace_regexp if`)
f(`replace_regexp foo`)
f(`replace_regexp (`)
f(`replace_regexp (foo`)
f(`replace_regexp (foo,`)
f(`replace_regexp(foo,bar`)
f(`replace_regexp(foo,bar,baz)`)
f(`replace_regexp(foo,bar) abc`)
f(`replace_regexp(bar,baz) limit`)
f(`replace_regexp(bar,baz) limit N`)
f(`replace_regexp ("foo[", "bar")`)
}
func TestPipeReplaceRegexp(t *testing.T) {
f := func(pipeStr string, rows, rowsExpected [][]Field) {
t.Helper()
expectPipeResults(t, pipeStr, rows, rowsExpected)
}
// replace_regexp with placeholders
f(`replace_regexp ("foo(.+?)bar", "q-$1-x")`, [][]Field{
{
{"_msg", `abc foo a bar foobar foo b bar`},
{"bar", `cde`},
},
{
{"_msg", `1234`},
},
}, [][]Field{
{
{"_msg", `abc q- a -x q-bar foo b -x`},
{"bar", `cde`},
},
{
{"_msg", `1234`},
},
})
// replace_regexp without limits at _msg
f(`replace_regexp ("[_/]", "-")`, [][]Field{
{
{"_msg", `a_bc_d/ef`},
{"bar", `cde`},
},
{
{"_msg", `a_bc_d/ef`},
},
{
{"_msg", `1234`},
},
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{
{"_msg", `1234`},
},
}, [][]Field{
{
{"_msg", `a-bc-d-ef`},
{"bar", `cde`},
},
{
{"_msg", `a-bc-d-ef`},
},
{
{"_msg", `1234`},
},
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{
{"_msg", `1234`},
},
})
// replace_regexp with limit 1 at foo
f(`replace_regexp ("[_/]", "-") at foo limit 1`, [][]Field{
{
{"foo", `a_bc_d/ef`},
{"bar", `cde`},
},
{
{"foo", `1234`},
},
}, [][]Field{
{
{"foo", `a-bc_d/ef`},
{"bar", `cde`},
},
{
{"foo", `1234`},
},
})
// replace_regexp with limit 100 at foo
f(`replace_regexp ("[_/]", "-") at foo limit 100`, [][]Field{
{
{"foo", `a_bc_d/ef`},
{"bar", `cde`},
},
{
{"foo", `1234`},
},
}, [][]Field{
{
{"foo", `a-bc-d-ef`},
{"bar", `cde`},
},
{
{"foo", `1234`},
},
})
// conditional replace_regexp at foo
f(`replace_regexp if (bar:abc) ("[_/]", "") at foo`, [][]Field{
{
{"foo", `a_bc_d/ef`},
{"bar", `cde`},
},
{
{"foo", `123_45/6`},
{"bar", "abc"},
},
}, [][]Field{
{
{"foo", `a_bc_d/ef`},
{"bar", `cde`},
},
{
{"foo", `123456`},
{"bar", "abc"},
},
})
}
func TestPipeReplaceRegexpUpdateNeededFields(t *testing.T) {
f := func(s string, neededFields, unneededFields, neededFieldsExpected, unneededFieldsExpected string) {
t.Helper()
expectPipeNeededFields(t, s, neededFields, unneededFields, neededFieldsExpected, unneededFieldsExpected)
}
// all the needed fields
f(`replace_regexp ("a", "b") at x`, "*", "", "*", "")
f(`replace_regexp if (f1:q) ("a", "b") at x`, "*", "", "*", "")
// unneeded fields do not intersect with at field
f(`replace_regexp ("a", "b") at x`, "*", "f1,f2", "*", "f1,f2")
f(`replace_regexp if (f3:q) ("a", "b") at x`, "*", "f1,f2", "*", "f1,f2")
f(`replace_regexp if (f2:q) ("a", "b") at x`, "*", "f1,f2", "*", "f1")
// unneeded fields intersect with at field
f(`replace_regexp ("a", "b") at x`, "*", "x,y", "*", "x,y")
f(`replace_regexp if (f1:q) ("a", "b") at x`, "*", "x,y", "*", "x,y")
f(`replace_regexp if (x:q) ("a", "b") at x`, "*", "x,y", "*", "x,y")
f(`replace_regexp if (y:q) ("a", "b") at x`, "*", "x,y", "*", "x,y")
// needed fields do not intersect with at field
f(`replace_regexp ("a", "b") at x`, "f2,y", "", "f2,y", "")
f(`replace_regexp if (f1:q) ("a", "b") at x`, "f2,y", "", "f2,y", "")
// needed fields intersect with at field
f(`replace_regexp ("a", "b") at y`, "f2,y", "", "f2,y", "")
f(`replace_regexp if (f1:q) ("a", "b") at y`, "f2,y", "", "f1,f2,y", "")
}
func TestAppendReplaceRegexp(t *testing.T) {
f := func(s, reStr, replacement string, limit int, resultExpected string) {
t.Helper()
re := regexp.MustCompile(reStr)
result := appendReplaceRegexp(nil, s, re, replacement, uint64(limit))
if string(result) != resultExpected {
t.Fatalf("unexpected result for appendReplaceRegexp(%q, %q, %q, %d)\ngot\n%s\nwant\n%s", s, reStr, replacement, limit, result, resultExpected)
}
}
f("", "", "", 0, "")
f("", "foo", "bar", 0, "")
f("abc", "foo", "bar", 0, "abc")
f("foo", "fo+", "bar", 0, "bar")
f("foox", "fo+", "bar", 0, "barx")
f("afoo", "fo+", "bar", 0, "abar")
f("afoox", "fo+", "bar", 0, "abarx")
f("foo-bar/baz", "[-/]", "_", 0, "foo_bar_baz")
f("foo bar/ baz ", "[ /]", "", 2, "foobar baz ")
// placeholders
f("afoo abc barz", "a([^ ]+)", "b${1}x", 0, "bfoox bbcx bbrzx")
f("afoo abc barz", "a([^ ]+)", "b${1}x", 1, "bfoox abc barz")
}