Merge branch 'release/0.5.15'

1 files changed, 109 insertions, 0 deletions

diff --git a/ethlog/loggers_test.go b/ethlog/loggers_test.go
new file mode 100644
index 000000000..89f416681
--- /dev/null
+++ b/ethlog/loggers_test.go
@@ -0,0 +1,109 @@
+package ethlog
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+type TestLogSystem struct {
+	Output string
+	level  LogLevel
+}
+
+func (t *TestLogSystem) Println(v ...interface{}) {
+	t.Output += fmt.Sprintln(v...)
+}
+
+func (t *TestLogSystem) Printf(format string, v ...interface{}) {
+	t.Output += fmt.Sprintf(format, v...)
+}
+
+func (t *TestLogSystem) SetLogLevel(i LogLevel) {
+	t.level = i
+}
+
+func (t *TestLogSystem) GetLogLevel() LogLevel {
+	return t.level
+}
+
+func quote(s string) string {
+	return fmt.Sprintf("'%s'", s)
+}
+
+func TestLoggerPrintln(t *testing.T) {
+	logger := NewLogger("TEST")
+	testLogSystem := &TestLogSystem{level: WarnLevel}
+	AddLogSystem(testLogSystem)
+	logger.Errorln("error")
+	logger.Warnln("warn")
+	logger.Infoln("info")
+	logger.Debugln("debug")
+	Flush()
+	output := testLogSystem.Output
+	fmt.Println(quote(output))
+	if output != "[TEST] error\n[TEST] warn\n" {
+		t.Error("Expected logger output '[TEST] error\\n[TEST] warn\\n', got ", quote(testLogSystem.Output))
+	}
+}
+
+func TestLoggerPrintf(t *testing.T) {
+	logger := NewLogger("TEST")
+	testLogSystem := &TestLogSystem{level: WarnLevel}
+	AddLogSystem(testLogSystem)
+	logger.Errorf("error to %v\n", *testLogSystem)
+	logger.Warnf("warn")
+	logger.Infof("info")
+	logger.Debugf("debug")
+	Flush()
+	output := testLogSystem.Output
+	fmt.Println(quote(output))
+	if output != "[TEST] error to { 2}\n[TEST] warn" {
+		t.Error("Expected logger output '[TEST] error to { 2}\\n[TEST] warn', got ", quote(testLogSystem.Output))
+	}
+}
+
+func TestMultipleLogSystems(t *testing.T) {
+	logger := NewLogger("TEST")
+	testLogSystem0 := &TestLogSystem{level: ErrorLevel}
+	testLogSystem1 := &TestLogSystem{level: WarnLevel}
+	AddLogSystem(testLogSystem0)
+	AddLogSystem(testLogSystem1)
+	logger.Errorln("error")
+	logger.Warnln("warn")
+	Flush()
+	output0 := testLogSystem0.Output
+	output1 := testLogSystem1.Output
+	if output0 != "[TEST] error\n" {
+		t.Error("Expected logger 0 output '[TEST] error\\n', got ", quote(testLogSystem0.Output))
+	}
+	if output1 != "[TEST] error\n[TEST] warn\n" {
+		t.Error("Expected logger 1 output '[TEST] error\\n[TEST] warn\\n', got ", quote(testLogSystem1.Output))
+	}
+}
+
+func TestFileLogSystem(t *testing.T) {
+	logger := NewLogger("TEST")
+	filename := "test.log"
+	file, _ := os.OpenFile(filename, os.O_RDWR|os.O_CREATE, os.ModePerm)
+	testLogSystem := NewStdLogSystem(file, 0, WarnLevel)
+	AddLogSystem(testLogSystem)
+	logger.Errorf("error to %s\n", filename)
+	logger.Warnln("warn")
+	Flush()
+	contents, _ := ioutil.ReadFile(filename)
+	output := string(contents)
+	fmt.Println(quote(output))
+	if output != "[TEST] error to test.log\n[TEST] warn\n" {
+		t.Error("Expected contents of file 'test.log': '[TEST] error to test.log\\n[TEST] warn\\n', got ", quote(output))
+	} else {
+		os.Remove(filename)
+	}
+}
+
+func TestNoLogSystem(t *testing.T) {
+	logger := NewLogger("TEST")
+	logger.Warnln("warn")
+	Flush()
+}