move to untimestamped logs, tag the lots INFO and DEBUG. Update tests

logger/logger_test.go

@@ -4,7 +4,7 @@ package logger
 
 import (
 	"bytes"
-	"log"
+	"io"
 	"os"
 	"strings"
 	"testing"
@@ -13,19 +13,33 @@ import (
 )
 
 func TestPrintf(t *testing.T) {
-	// Capture log output
-	var buf bytes.Buffer
-	log.SetOutput(&buf)
-	defer log.SetOutput(os.Stderr)
+	// Capture stdout
+	oldStdout := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
 
 	Printf("test message: %s", "hello")
 
+	// Close writer and restore stdout
+	w.Close()
+	os.Stdout = oldStdout
+
+	// Read captured output
+	var buf bytes.Buffer
+	io.Copy(&buf, r)
 	output := buf.String()
-	if !strings.Contains(output, "logger_test.go:logger.TestPrintf") {
-		t.Errorf("Expected log output to contain caller info, got: %s", output)
+
+	// Check output format: "INFO file.go:function message"
+	if !strings.HasPrefix(output, "INFO ") {
+		t.Errorf("Expected output to start with 'INFO ', got: %s", output)
 	}
+	
+	if !strings.Contains(output, "logger_test.go:logger.TestPrintf") {
+		t.Errorf("Expected output to contain caller info, got: %s", output)
+	}
+	
 	if !strings.Contains(output, "test message: hello") {
-		t.Errorf("Expected log output to contain message, got: %s", output)
+		t.Errorf("Expected output to contain message, got: %s", output)
 	}
 }
 
@@ -37,16 +51,29 @@ func TestDebugfWithDebugEnabled(t *testing.T) {
 	// Enable debug
 	config.Debug = true
 
-	// Capture log output
-	var buf bytes.Buffer
-	log.SetOutput(&buf)
-	defer log.SetOutput(os.Stderr)
+	// Capture stdout
+	oldStdout := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
 
 	Debugf("debug message: %s", "test")
 
+	// Close writer and restore stdout
+	w.Close()
+	os.Stdout = oldStdout
+
+	// Read captured output
+	var buf bytes.Buffer
+	io.Copy(&buf, r)
 	output := buf.String()
+
+	// Check output format: "DEBUG file.go:function message"
+	if !strings.HasPrefix(output, "DEBUG ") {
+		t.Errorf("Expected output to start with 'DEBUG ', got: %s", output)
+	}
+	
 	if !strings.Contains(output, "debug message: test") {
-		t.Errorf("Expected debug message to be logged when debug is enabled, got: %s", output)
+		t.Errorf("Expected output to contain message, got: %s", output)
 	}
 }
 
@@ -58,15 +85,29 @@ func TestDebugfWithDebugDisabled(t *testing.T) {
 	// Disable debug
 	config.Debug = false
 
-	// Capture log output
-	var buf bytes.Buffer
-	log.SetOutput(&buf)
-	defer log.SetOutput(os.Stderr)
+	// Capture stdout
+	oldStdout := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
 
 	Debugf("debug message: %s", "test")
 
+	// Close writer and restore stdout
+	w.Close()
+	os.Stdout = oldStdout
+
+	// Read captured output
+	var buf bytes.Buffer
+	io.Copy(&buf, r)
 	output := buf.String()
-	if strings.Contains(output, "debug message: test") {
-		t.Errorf("Expected debug message to NOT be logged when debug is disabled, got: %s", output)
+
+	// Should be empty when debug is disabled
+	if output != "" {
+		t.Errorf("Expected no output when debug is disabled, got: %s", output)
 	}
+}
+
+func TestSync(t *testing.T) {
+	// Test that Sync doesn't panic (it's a no-op now)
+	Sync()
 }