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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package log
// These tests are too simple.
import (
"bufio";
"log";
"os";
"regexp";
"testing";
)
const (
Rdate = `[0-9][0-9][0-9][0-9]/[0-9][0-9][0-9][0-9]`;
Rtime = `[0-9][0-9]:[0-9][0-9]:[0-9][0-9]`;
Rmicroseconds = `\.[0-9][0-9][0-9][0-9][0-9][0-9]`;
Rline = `[0-9]+:`;
Rlongfile = `/[A-Za-z0-9_/]+\.go:` + Rline;
Rshortfile = `[A-Za-z0-9_]+\.go:` + Rline;
)
type tester struct {
flag int;
prefix string;
pattern string; // regexp that log output must match; we add ^ and expected_text$ always
}
var tests = []tester {
// individual pieces:
tester{ 0, "", "" },
tester{ 0, "XXX", "XXX" },
tester{ Lok|Ldate, "", Rdate+" " },
tester{ Lok|Ltime, "", Rtime+" " },
tester{ Lok|Ltime|Lmicroseconds, "", Rtime+Rmicroseconds+" " },
tester{ Lok|Lmicroseconds, "", Rtime+Rmicroseconds+" " }, // microsec implies time
tester{ Lok|Llongfile, "", Rlongfile+" " },
tester{ Lok|Lshortfile, "", Rshortfile+" " },
tester{ Lok|Llongfile|Lshortfile, "", Rshortfile+" " }, // shortfile overrides longfile
// everything at once:
tester{ Lok|Ldate|Ltime|Lmicroseconds|Llongfile, "XXX", "XXX"+Rdate+" "+Rtime+Rmicroseconds+" "+Rlongfile+" " },
tester{ Lok|Ldate|Ltime|Lmicroseconds|Lshortfile, "XXX", "XXX"+Rdate+" "+Rtime+Rmicroseconds+" "+Rshortfile+" " },
}
// Test using Log("hello", 23, "world") or using Logf("hello %d world", 23)
func testLog(t *testing.T, flag int, prefix string, pattern string, useLogf bool) {
fd0, fd1, err1 := os.Pipe();
if err1 != nil {
t.Fatal("pipe", err1);
}
defer fd0.Close();
defer fd1.Close();
buf := bufio.NewBufRead(fd0);
l := NewLogger(fd1, nil, prefix, flag);
if useLogf {
l.Logf("hello %d world", 23);
} else {
l.Log("hello", 23, "world");
}
line, err3 := buf.ReadLineString('\n', false);
if err3 != nil {
t.Fatal("log error", err3);
}
pattern = "^"+pattern+"hello 23 world$";
matched, err4 := regexp.Match(pattern, line);
if err4 != nil{
t.Fatal("pattern did not compile:", err4);
}
if !matched {
t.Errorf("log output should match %q is %q", pattern, line);
}
}
func TestAllLog(t *testing.T) {
for i, testcase := range(tests) {
testLog(t, testcase.flag, testcase.prefix, testcase.pattern, false);
testLog(t, testcase.flag, testcase.prefix, testcase.pattern, true);
}
}
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