{"record":{"id":"28c77f1f9c2b1fb7","repo":"crowdsecurity/crowdsec","slug":"couldn-t-generate-assertion-w","errorCode":null,"errorMessage":"couldn't generate assertion: %w","messagePattern":"couldn't generate assertion: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/hubtest/hubtest_item.go","lineNumber":536,"sourceCode":"\t\t_, err := os.Stat(t.ParserAssert.File)\n\t\tif os.IsNotExist(err) {\n\t\t\tparserAssertFile, err := os.Create(t.ParserAssert.File)\n\t\t\tif err != nil {\n\t\t\t\treturn err\n\t\t\t}\n\n\t\t\tparserAssertFile.Close()\n\t\t}\n\n\t\tassertFileStat, err := os.Stat(t.ParserAssert.File)\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"error while stats '%s': %w\", t.ParserAssert.File, err)\n\t\t}\n\n\t\tif assertFileStat.Size() == 0 {\n\t\t\tassertData, err := t.ParserAssert.AutoGenFromFile(t.ParserResultFile)\n\t\t\tif err != nil {\n\t\t\t\treturn fmt.Errorf(\"couldn't generate assertion: %w\", err)\n\t\t\t}\n\n\t\t\tt.ParserAssert.AutoGenAssertData = assertData\n\t\t\tt.ParserAssert.AutoGenAssert = true\n\t\t} else {\n\t\t\tif err := t.ParserAssert.AssertFile(t.ParserResultFile); err != nil {\n\t\t\t\t// TODO: no error - should not prevent running the other tests\n\t\t\t\treturn fmt.Errorf(\"unable to run assertion on file '%s': %w\", t.ParserResultFile, err)\n\t\t\t}\n\t\t}\n\t}\n\n\t// assert scenarios\n\tnbScenario := 0\n\n\tfor _, scenario := range t.Config.Scenarios {\n\t\tif scenario == \"\" {\n\t\t\tcontinue","sourceCodeStart":518,"sourceCodeEnd":554,"githubUrl":"https://github.com/crowdsecurity/crowdsec/blob/909b5157986a2b2c2163300fdaef5ed01289f7d2/pkg/hubtest/hubtest_item.go#L518-L554","documentation":"When the parser assert file exists but is empty (size 0), hubtest auto-generates assertions from the parser results dump (ParserResultFile). This error wraps any failure of AutoGenFromFile, typically because the results file is missing or unreadable.","triggerScenarios":"RunWithLogFile: parser_assert.yaml is 0 bytes and ParserAssert.AutoGenFromFile(t.ParserResultFile) fails — e.g. results dump absent because the parse step produced nothing or dump-data target was removed.","commonSituations":"Empty assert file committed without ever running autogen; results directory cleaned between the parse and assert steps; parse run silently produced no output so the results file was never created.","solutions":["Run the hubtest with auto-generation enabled to populate the assert file from a successful parse run","Ensure the crowdsec parse step completed and wrote t.ParserResultFile","Check permissions and path of the results directory"],"exampleFix":"// before: empty parser_assert.yaml committed\n// after: generate it\n./tests/crowdsec -c tests/test01/runtime.yaml -dump-data tests/test01/results && regenerate asserts","handlingStrategy":"validation","validationCode":"if st, err := os.Stat(parserResultFile); err != nil || st.Size() == 0 { t.Fatalf(\"parser results missing/empty at %s\", parserResultFile) }","typeGuard":null,"tryCatchPattern":"if err := t.Run(ctx); err != nil && strings.Contains(err.Error(), \"couldn't generate assertion\") { /* ensure parse ran and dump exists, retry */ }","preventionTips":["Never commit empty assert files without an autogen step in CI","Ensure the parse step completes before assertion autogen","Keep results dir intact during the test run"],"tags":["hubtest","assertion","autogen","testing"],"backgroundTag":"file-read-failed","analyzedSha":"909b5157986a2b2c2163300fdaef5ed01289f7d2","analyzedAt":"2026-09-06T12:27:26.012Z","contentChangedAt":"2026-09-06T12:27:26.012Z","schemaVersion":2},"datasetVersion":"2026-09-14T00:17:10.932Z"}