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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
// logfilter buffer go test output and make sure to limit the output to only the error-related stuff.
package main
import (
"bufio"
"fmt"
"io"
"os"
"strings"
)
type test struct {
name string
outputBuffer string
}
func logFilter(inFile io.Reader, outFile io.Writer) int {
scanner := bufio.NewScanner(inFile)
tests := make(map[string]test)
currentTestName := ""
incomingFails := false
// packageOutputBuffer is used to buffer messages that are package-oriented. i.e. TestMain() generated messages,
// which are called before any test starts to run.
packageOutputBuffer := ""
for scanner.Scan() {
line := scanner.Text()
if len(line) == 0 {
continue
}
if strings.HasPrefix(line, "=== RUN") {
var testName string
fmt.Sscanf(line, "=== RUN %s", &testName)
currentTestName = testName
if _, have := tests[currentTestName]; !have {
tests[currentTestName] = test{name: currentTestName}
}
continue
}
if strings.HasPrefix(line, "=== CONT") {
var testName string
fmt.Sscanf(line, "=== CONT %s", &testName)
currentTestName = testName
if _, have := tests[currentTestName]; !have {
panic(fmt.Errorf("test %s is missing", currentTestName))
}
continue
}
if strings.HasPrefix(line, "=== PAUSE") {
var testName string
fmt.Sscanf(line, "=== PAUSE %s", &testName)
currentTestName = ""
if _, have := tests[testName]; !have {
panic(fmt.Errorf("test %s is missing", testName))
}
continue
}
if idx := strings.Index(line, "--- PASS:"); idx >= 0 {
var testName string
fmt.Sscanf(line[idx:], "--- PASS: %s", &testName)
if _, have := tests[testName]; !have {
fmt.Fprintf(outFile, "%s\r\n%s\r\n", line, packageOutputBuffer)
packageOutputBuffer = ""
} else {
fmt.Fprintf(outFile, line+"\r\n")
delete(tests, testName)
currentTestName = ""
}
continue
}
if idx := strings.Index(line, "--- FAIL:"); idx >= 0 {
incomingFails = true
var testName string
fmt.Sscanf(line[idx:], "--- FAIL: %s", &testName)
test, have := tests[testName]
if !have {
fmt.Fprintf(outFile, "%s\r\n%s\r\n", line, packageOutputBuffer)
packageOutputBuffer = ""
} else {
fmt.Fprintf(outFile, test.outputBuffer+"\r\n")
fmt.Fprintf(outFile, line+"\r\n")
test.outputBuffer = ""
tests[testName] = test
currentTestName = ""
}
continue
}
// otherwise, add the line to the current test ( if there is such )
currentTest, have := tests[currentTestName]
if have {
currentTest.outputBuffer += "\r\n" + line
tests[currentTestName] = currentTest
continue
}
// no current test is only legit if we're PASS, FAIL or package test line summary.
if line == "PASS" || line == "FAIL" {
continue
}
if strings.HasPrefix(line, "ok ") {
fmt.Fprintf(outFile, line+"\r\n")
packageOutputBuffer = ""
continue
}
if strings.HasPrefix(line, "FAIL ") {
incomingFails = true
if len(packageOutputBuffer) > 0 {
fmt.Fprintf(outFile, line+"...\r\n%s\r\n", packageOutputBuffer)
}
packageOutputBuffer = ""
fmt.Fprintf(outFile, line+"\r\n")
continue
}
// this is package-oriented output
packageOutputBuffer += line + "\r\n"
}
scannerErr := scanner.Err()
if scannerErr != nil {
if currentTestName != "" && tests[currentTestName].outputBuffer != "" {
fmt.Fprint(outFile, tests[currentTestName].outputBuffer)
}
fmt.Fprintf(outFile, "logfilter: the following error received on the input stream : %v\r\n", scannerErr)
}
if incomingFails {
return 1
}
return 0
}
func main() {
retCode := logFilter(os.Stdin, os.Stdout)
os.Exit(retCode)
}
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