50-50: LGTM!

The updated expected string correctly reflects the MeCard ADR format with address components in the proper order (PO Box, Extended Address, Street, Locality, Region, Postal Code, Country).

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108-108: LGTM!

The updated expected string correctly includes the vCard 2.1 address type format (ADR;HOME;PREF:) and follows RFC 2426 Section 3.2.1 structure for address components.

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137-137: LGTM!

The updated expected string correctly uses vCard 3.0 TYPE parameter syntax (ADR;TYPE=HOME,PREF:) with comma-separated type values, consistent with RFC 2426 Section 3.2.1.

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166-166: LGTM!

The updated expected string correctly uses vCard 4.0 lowercase TYPE parameter syntax (ADR;TYPE=home,pref:), consistent with vCard 4.0 conventions.

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198-223: LGTM!

The new test correctly validates work address generation for vCard 3.0. It properly:

• Passes AddressType.Work explicitly to the constructor
• Expects the correct vCard 3.0 TYPE format (ADR;TYPE=WORK:)
• Handles empty state/region field correctly (double semicolon)
• Follows the established test pattern

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225-250: LGTM!

The new test correctly validates work preferred address generation for vCard 4.0. It properly:

• Passes AddressType.WorkPreferred explicitly to the constructor
• Expects the correct vCard 4.0 lowercase TYPE format with PREF (ADR;TYPE=work,pref:)
• Handles empty state/region field correctly (double semicolon)
• Follows the established test pattern