Implement mailto barcodes and corresponding test

formatting/email_test.go

@@ -0,0 +1,48 @@
+package formatting
+
+import (
+	"testing"
+)
+
+func TestFormatEmail(t *testing.T) {
+	testCases := []struct {
+		inputJSON   string
+		expectedURL string
+	}{
+		{
+			inputJSON: `{
+				"address": "testing@example.com"
+			}`,
+			expectedURL: "mailto:testing@example.com",
+		},
+		{
+			inputJSON: `{
+				"address": "testing@example.com",
+				"subject": "Hello",
+				"cc": "cc@example.com"
+			}`,
+			expectedURL: "mailto:testing@example.com?cc=cc%40example.com&subject=Hello",
+		},
+		{
+			inputJSON: `{
+				"address": "testing@example.com",
+				"subject": "Subject",
+				"cc": "cc@example.com",
+				"bcc": "bcc@example.com",
+				"content": "this is email content"
+			}`,
+			expectedURL: "mailto:testing@example.com?bcc=bcc%40example.com&body=this+is+email+content&cc=cc%40example.com&subject=Subject",
+		},
+	}
+
+	for _, testCase := range testCases {
+		result, err := formatEMail(testCase.inputJSON)
+		if err != nil {
+			t.Errorf("Unexpected Error: %v", err)
+		}
+
+		if result != testCase.expectedURL {
+			t.Errorf("Input JSON: \n%s\n\nExpected: %s\n\n Got: %s", testCase.inputJSON, testCase.expectedURL, result)
+		}
+	}
+}