(draft): telegram markdown v2 string builder

tgmd/utils_test.go

@@ -0,0 +1,24 @@
+package tgmd
+
+import "testing"
+
+func TestFormattingHelpers(t *testing.T) {
+	tests := []struct {
+		name string
+		got  string
+		want string
+	}{
+		{name: "bold", got: WithBold("text"), want: "*text*"},
+		{name: "italic", got: WithItalic("text"), want: "_text_"},
+		{name: "inline code", got: WithInlineCode("text"), want: "`text`"},
+		{name: "link", got: WithLink("Laniakea", "https://example.test"), want: "[Laniakea](https://example.test)"},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			if tc.got != tc.want {
+				t.Fatalf("unexpected formatted text: got %q want %q", tc.got, tc.want)
+			}
+		})
+	}
+}