diff --git a/core/swag_test.go b/core/swag_test.go
new file mode 100644
index 00000000..e08221d3
--- /dev/null
+++ b/core/swag_test.go
@@ -0,0 +1,59 @@
+package core
+
+import "testing"
+
+func TestW(t *testing.T) {
+	exp := "<3\033[0m"
+	got := W("<", "3")
+	if got != exp {
+		t.Fatalf("expected '%s', got '%s'", exp, got)
+	}
+}
+
+func TestBold(t *testing.T) {
+	exp := "\033[1mgohpers\033[0m"
+	got := Bold("gohpers")
+	if got != exp {
+		t.Fatalf("expected path '%s', got '%s'", exp, got)
+	}
+}
+
+func TestDim(t *testing.T) {
+	exp := "\033[2mgohpers\033[0m"
+	got := Dim("gohpers")
+	if got != exp {
+		t.Fatalf("expected path '%s', got '%s'", exp, got)
+	}
+}
+
+func TestRed(t *testing.T) {
+	exp := "\033[31mgohpers\033[0m"
+	got := Red("gohpers")
+	if got != exp {
+		t.Fatalf("expected path '%s', got '%s'", exp, got)
+	}
+}
+
+func TestGreen(t *testing.T) {
+	exp := "\033[32mgohpers\033[0m"
+	got := Green("gohpers")
+	if got != exp {
+		t.Fatalf("expected path '%s', got '%s'", exp, got)
+	}
+}
+
+func TestBlue(t *testing.T) {
+	exp := "\033[34mgohpers\033[0m"
+	got := Blue("gohpers")
+	if got != exp {
+		t.Fatalf("expected path '%s', got '%s'", exp, got)
+	}
+}
+
+func TestYellow(t *testing.T) {
+	exp := "\033[33mgohpers\033[0m"
+	got := Yellow("gohpers")
+	if got != exp {
+		t.Fatalf("expected path '%s', got '%s'", exp, got)
+	}
+}