logger_test: color (#1926)

* logger color: string literals

* logger_test: color

logger.go

@@ -22,18 +22,19 @@ const (
 	forceColor
 )
 
-var (
-	green            = string([]byte{27, 91, 57, 55, 59, 52, 50, 109})
-	white            = string([]byte{27, 91, 57, 48, 59, 52, 55, 109})
-	yellow           = string([]byte{27, 91, 57, 48, 59, 52, 51, 109})
-	red              = string([]byte{27, 91, 57, 55, 59, 52, 49, 109})
-	blue             = string([]byte{27, 91, 57, 55, 59, 52, 52, 109})
-	magenta          = string([]byte{27, 91, 57, 55, 59, 52, 53, 109})
-	cyan             = string([]byte{27, 91, 57, 55, 59, 52, 54, 109})
-	reset            = string([]byte{27, 91, 48, 109})
-	consoleColorMode = autoColor
+const (
+	green   = "\033[97;42m"
+	white   = "\033[90;47m"
+	yellow  = "\033[90;43m"
+	red     = "\033[97;41m"
+	blue    = "\033[97;44m"
+	magenta = "\033[97;45m"
+	cyan    = "\033[97;46m"
+	reset   = "\033[0m"
 )
 
+var consoleColorMode = autoColor
+
 // LoggerConfig defines the config for Logger middleware.
 type LoggerConfig struct {
 	// Optional. Default value is gin.defaultLogFormatter

logger_test.go

@@ -291,14 +291,14 @@ func TestColorForMethod(t *testing.T) {
 		return p.MethodColor()
 	}
 
-	assert.Equal(t, string([]byte{27, 91, 57, 55, 59, 52, 52, 109}), colorForMethod("GET"), "get should be blue")
-	assert.Equal(t, string([]byte{27, 91, 57, 55, 59, 52, 54, 109}), colorForMethod("POST"), "post should be cyan")
-	assert.Equal(t, string([]byte{27, 91, 57, 48, 59, 52, 51, 109}), colorForMethod("PUT"), "put should be yellow")
-	assert.Equal(t, string([]byte{27, 91, 57, 55, 59, 52, 49, 109}), colorForMethod("DELETE"), "delete should be red")
-	assert.Equal(t, string([]byte{27, 91, 57, 55, 59, 52, 50, 109}), colorForMethod("PATCH"), "patch should be green")
-	assert.Equal(t, string([]byte{27, 91, 57, 55, 59, 52, 53, 109}), colorForMethod("HEAD"), "head should be magenta")
-	assert.Equal(t, string([]byte{27, 91, 57, 48, 59, 52, 55, 109}), colorForMethod("OPTIONS"), "options should be white")
-	assert.Equal(t, string([]byte{27, 91, 48, 109}), colorForMethod("TRACE"), "trace is not defined and should be the reset color")
+	assert.Equal(t, blue, colorForMethod("GET"), "get should be blue")
+	assert.Equal(t, cyan, colorForMethod("POST"), "post should be cyan")
+	assert.Equal(t, yellow, colorForMethod("PUT"), "put should be yellow")
+	assert.Equal(t, red, colorForMethod("DELETE"), "delete should be red")
+	assert.Equal(t, green, colorForMethod("PATCH"), "patch should be green")
+	assert.Equal(t, magenta, colorForMethod("HEAD"), "head should be magenta")
+	assert.Equal(t, white, colorForMethod("OPTIONS"), "options should be white")
+	assert.Equal(t, reset, colorForMethod("TRACE"), "trace is not defined and should be the reset color")
 }
 
 func TestColorForStatus(t *testing.T) {
@@ -309,10 +309,10 @@ func TestColorForStatus(t *testing.T) {
 		return p.StatusCodeColor()
 	}
 
-	assert.Equal(t, string([]byte{27, 91, 57, 55, 59, 52, 50, 109}), colorForStatus(http.StatusOK), "2xx should be green")
-	assert.Equal(t, string([]byte{27, 91, 57, 48, 59, 52, 55, 109}), colorForStatus(http.StatusMovedPermanently), "3xx should be white")
-	assert.Equal(t, string([]byte{27, 91, 57, 48, 59, 52, 51, 109}), colorForStatus(http.StatusNotFound), "4xx should be yellow")
-	assert.Equal(t, string([]byte{27, 91, 57, 55, 59, 52, 49, 109}), colorForStatus(2), "other things should be red")
+	assert.Equal(t, green, colorForStatus(http.StatusOK), "2xx should be green")
+	assert.Equal(t, white, colorForStatus(http.StatusMovedPermanently), "3xx should be white")
+	assert.Equal(t, yellow, colorForStatus(http.StatusNotFound), "4xx should be yellow")
+	assert.Equal(t, red, colorForStatus(2), "other things should be red")
 }
 
 func TestResetColor(t *testing.T) {