mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-18 22:52:11 +01:00
43fc1183b9
This makes test code more clear and reduces the number of code lines by 500.
This also simplifies debugging tests. See https://itnext.io/f-tests-as-a-replacement-for-table-driven-tests-in-go-8814a8b19e9e
While at it, consistently use t.Fatal* instead of t.Error* across tests, since t.Error*
requires more boilerplate code, which can result in additional bugs inside tests.
While t.Error* allows writing logging errors for the same, this doesn't simplify fixing
broken tests most of the time.
This is a follow-up for a9525da8a4
349 lines
9.1 KiB
Go
349 lines
9.1 KiB
Go
package templates
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import (
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"math"
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"strings"
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"testing"
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textTpl "text/template"
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)
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func TestTemplateFuncs_StringConversion(t *testing.T) {
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f := func(funcName, s, resultExpected string) {
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t.Helper()
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funcs := templateFuncs()
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v := funcs[funcName]
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fLocal := v.(func(s string) string)
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result := fLocal(s)
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if result != resultExpected {
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t.Fatalf("unexpected result for %s(%q); got\n%s\nwant\n%s", funcName, s, result, resultExpected)
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}
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}
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f("title", "foo bar", "Foo Bar")
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f("toUpper", "foo", "FOO")
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f("toLower", "FOO", "foo")
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f("pathEscape", "foo/bar\n+baz", "foo%2Fbar%0A+baz")
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f("queryEscape", "foo+bar\n+baz", "foo%2Bbar%0A%2Bbaz")
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f("jsonEscape", `foo{bar="baz"}`+"\n + 1", `"foo{bar=\"baz\"}\n + 1"`)
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f("quotesEscape", `foo{bar="baz"}`+"\n + 1", `foo{bar=\"baz\"}\n + 1`)
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f("htmlEscape", "foo < 10\nabc", "foo < 10\nabc")
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f("crlfEscape", "foo\nbar\rx", `foo\nbar\rx`)
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f("stripPort", "foo", "foo")
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f("stripPort", "foo:1234", "foo")
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f("stripDomain", "foo.bar.baz", "foo")
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f("stripDomain", "foo.bar:123", "foo:123")
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}
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func TestTemplateFuncs_Match(t *testing.T) {
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funcs := templateFuncs()
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// check "match" func
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matchFunc := funcs["match"].(func(pattern, s string) (bool, error))
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if _, err := matchFunc("invalid[regexp", "abc"); err == nil {
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t.Fatalf("expecting non-nil error on invalid regexp")
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}
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ok, err := matchFunc("abc", "def")
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if err != nil {
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t.Fatalf("unexpected error")
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}
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if ok {
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t.Fatalf("unexpected match")
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}
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ok, err = matchFunc("a.+b", "acsdb")
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if err != nil {
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t.Fatalf("unexpected error")
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}
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if !ok {
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t.Fatalf("unexpected mismatch")
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}
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}
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func TestTemplateFuncs_Formatting(t *testing.T) {
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f := func(funcName string, p any, resultExpected string) {
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t.Helper()
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funcs := templateFuncs()
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v := funcs[funcName]
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fLocal := v.(func(s any) (string, error))
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result, err := fLocal(p)
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if err != nil {
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t.Fatalf("unexpected error for %s(%f): %s", funcName, p, err)
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}
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if result != resultExpected {
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t.Fatalf("unexpected result for %s(%f); got\n%s\nwant\n%s", funcName, p, result, resultExpected)
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}
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}
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f("humanize1024", float64(0), "0")
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f("humanize1024", math.Inf(0), "+Inf")
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f("humanize1024", math.NaN(), "NaN")
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f("humanize1024", float64(127087), "124.1ki")
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f("humanize1024", float64(130137088), "124.1Mi")
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f("humanize1024", float64(133260378112), "124.1Gi")
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f("humanize1024", float64(136458627186688), "124.1Ti")
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f("humanize1024", float64(139733634239168512), "124.1Pi")
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f("humanize1024", float64(143087241460908556288), "124.1Ei")
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f("humanize1024", float64(146521335255970361638912), "124.1Zi")
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f("humanize1024", float64(150037847302113650318245888), "124.1Yi")
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f("humanize1024", float64(153638755637364377925883789312), "1.271e+05Yi")
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f("humanize", float64(127087), "127.1k")
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f("humanize", float64(136458627186688), "136.5T")
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f("humanizeDuration", 1, "1s")
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f("humanizeDuration", 0.2, "200ms")
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f("humanizeDuration", 42000, "11h 40m 0s")
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f("humanizeDuration", 16790555, "194d 8h 2m 35s")
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f("humanizePercentage", 1, "100%")
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f("humanizePercentage", 0.8, "80%")
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f("humanizePercentage", 0.015, "1.5%")
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f("humanizeTimestamp", 1679055557, "2023-03-17 12:19:17 +0000 UTC")
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}
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func mkTemplate(current, replacement any) textTemplate {
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tmpl := textTemplate{}
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if current != nil {
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switch val := current.(type) {
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case string:
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tmpl.current = textTpl.Must(newTemplate().Parse(val))
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}
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}
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if replacement != nil {
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switch val := replacement.(type) {
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case string:
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tmpl.replacement = textTpl.Must(newTemplate().Parse(val))
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}
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}
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return tmpl
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}
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func equalTemplates(tmpls ...*textTpl.Template) bool {
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var cmp *textTpl.Template
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for i, tmpl := range tmpls {
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if i == 0 {
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cmp = tmpl
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} else {
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if cmp == nil || tmpl == nil {
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if cmp != tmpl {
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return false
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}
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continue
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}
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if len(tmpl.Templates()) != len(cmp.Templates()) {
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return false
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}
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for _, t := range tmpl.Templates() {
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tp := cmp.Lookup(t.Name())
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if tp == nil {
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return false
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}
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if tp.Root.String() != t.Root.String() {
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return false
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}
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}
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}
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}
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return true
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}
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func TestTemplatesLoad_Failure(t *testing.T) {
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f := func(pathPatterns []string, expectedErrStr string) {
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t.Helper()
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err := Load(pathPatterns, false)
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if err == nil {
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t.Fatalf("expecting non-nil error")
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}
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errStr := err.Error()
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if !strings.Contains(errStr, expectedErrStr) {
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t.Fatalf("the returned error %q doesn't contain %q", errStr, expectedErrStr)
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}
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}
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// load template with syntax error
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f([]string{
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"templates/other/nested/bad0-*.tpl",
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"templates/test/good0-*.tpl",
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}, "failed to parse template glob")
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}
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func TestTemplatesLoad_Success(t *testing.T) {
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f := func(initialTmpl textTemplate, pathPatterns []string, overwrite bool, expectedTmpl textTemplate) {
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t.Helper()
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masterTmplOrig := masterTmpl
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masterTmpl = initialTmpl
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defer func() {
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masterTmpl = masterTmplOrig
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}()
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if err := Load(pathPatterns, overwrite); err != nil {
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t.Fatalf("cannot load templates: %s", err)
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}
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if !equalTemplates(masterTmpl.replacement, expectedTmpl.replacement) {
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t.Fatalf("unexpected replacement template\ngot\n%+v\nwant\n%+v", masterTmpl.replacement, expectedTmpl.replacement)
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}
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if !equalTemplates(masterTmpl.current, expectedTmpl.current) {
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t.Fatalf("unexpected current template\ngot\n%+v\nwant\n%+v", masterTmpl.current, expectedTmpl.current)
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}
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}
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// non existing path undefined template override
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initialTmpl := mkTemplate(nil, nil)
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pathPatterns := []string{
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"templates/non-existing/good-*.tpl",
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"templates/absent/good-*.tpl",
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}
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overwrite := true
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expectedTmpl := mkTemplate(``, nil)
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f(initialTmpl, pathPatterns, overwrite, expectedTmpl)
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// non existing path defined template override
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initialTmpl = mkTemplate(`
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{{- define "test.1" -}}
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{{- printf "value" -}}
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{{- end -}}
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`, nil)
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pathPatterns = []string{
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"templates/non-existing/good-*.tpl",
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"templates/absent/good-*.tpl",
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}
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overwrite = true
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expectedTmpl = mkTemplate(``, nil)
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f(initialTmpl, pathPatterns, overwrite, expectedTmpl)
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// existing path undefined template override
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initialTmpl = mkTemplate(nil, nil)
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pathPatterns = []string{
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"templates/other/nested/good0-*.tpl",
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"templates/test/good0-*.tpl",
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}
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overwrite = false
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expectedTmpl = mkTemplate(`
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{{- define "good0-test.tpl" -}}{{- end -}}
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{{- define "test.0" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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{{- define "test.1" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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{{- define "test.2" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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{{- define "test.3" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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`, nil)
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f(initialTmpl, pathPatterns, overwrite, expectedTmpl)
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// existing path defined template override
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initialTmpl = mkTemplate(`
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{{- define "test.1" -}}
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{{ printf "Hello %s!" "world" }}
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{{- end -}}
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`, nil)
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pathPatterns = []string{
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"templates/other/nested/good0-*.tpl",
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"templates/test/good0-*.tpl",
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}
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overwrite = false
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expectedTmpl = mkTemplate(`
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{{- define "good0-test.tpl" -}}{{- end -}}
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{{- define "test.0" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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{{- define "test.1" -}}
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{{ printf "Hello %s!" "world" }}
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{{- end -}}
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{{- define "test.2" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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{{- define "test.3" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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`, `
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{{- define "good0-test.tpl" -}}{{- end -}}
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{{- define "test.0" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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{{- define "test.1" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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{{- define "test.2" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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{{- define "test.3" -}}
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{{ printf "Hello %s!" externalURL }}
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{{- end -}}
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`)
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f(initialTmpl, pathPatterns, overwrite, expectedTmpl)
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}
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func TestTemplatesReload(t *testing.T) {
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f := func(initialTmpl, expectedTmpl textTemplate) {
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t.Helper()
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masterTmplOrig := masterTmpl
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masterTmpl = initialTmpl
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defer func() {
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masterTmpl = masterTmplOrig
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}()
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Reload()
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if !equalTemplates(masterTmpl.replacement, expectedTmpl.replacement) {
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t.Fatalf("unexpected replacement template\ngot\n%+v\nwant\n%+v", masterTmpl.replacement, expectedTmpl.replacement)
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}
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if !equalTemplates(masterTmpl.current, expectedTmpl.current) {
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t.Fatalf("unexpected current template\ngot\n%+v\nwant\n%+v", masterTmpl.current, expectedTmpl.current)
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}
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}
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// empty current and replacement templates
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f(mkTemplate(nil, nil), mkTemplate(nil, nil))
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// empty current template only
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f(mkTemplate(`
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{{- define "test.1" -}}
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{{- printf "value" -}}
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{{- end -}}
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`, nil), mkTemplate(`
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{{- define "test.1" -}}
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{{- printf "value" -}}
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{{- end -}}
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`, nil))
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// empty replacement template only
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f(mkTemplate(nil, `
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{{- define "test.1" -}}
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{{- printf "value" -}}
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{{- end -}}
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`), mkTemplate(`
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{{- define "test.1" -}}
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{{- printf "value" -}}
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{{- end -}}
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`, nil))
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// defined both templates
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f(mkTemplate(`
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{{- define "test.0" -}}
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{{- printf "value" -}}
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{{- end -}}
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{{- define "test.1" -}}
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{{- printf "before" -}}
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{{- end -}}
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`, `
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{{- define "test.1" -}}
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{{- printf "after" -}}
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{{- end -}}
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`), mkTemplate(`
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{{- define "test.1" -}}
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{{- printf "after" -}}
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{{- end -}}
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`, nil))
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}
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