diff --git a/logs/logger_test.go b/logs/logger_test.go
index 78c67737..debe2e90 100644
--- a/logs/logger_test.go
+++ b/logs/logger_test.go
@@ -57,19 +57,3 @@ func TestFormatHeader_1(t *testing.T) {
 	}
 }
 
-func TestNewAnsiColor1(t *testing.T) {
-	inner := bytes.NewBufferString("")
-	w := NewAnsiColorWriter(inner)
-	if w == inner {
-		t.Errorf("Get %#v, want %#v", w, inner)
-	}
-}
-
-func TestNewAnsiColor2(t *testing.T) {
-	inner := bytes.NewBufferString("")
-	w1 := NewAnsiColorWriter(inner)
-	w2 := NewAnsiColorWriter(w1)
-	if w1 != w2 {
-		t.Errorf("Get %#v, want %#v", w1, w2)
-	}
-}