Ensure tests exist that fail for inputs that have undefined terms and / or relative URLs

[dlongley]

The most common relative URL mistake looks like:

"type": [..., "SomeUndefinedType"]

So we should make sure to cover that.

[aljones15]

Suite now contains:

When deserializing to RDF, implementations MUST ensure that the base URL is set to null.

data-integrity-test-suite-assertion/vc-generator/generators.js

Lines 432 to 449 in 1f5c835

	function invalidBaseUrl({credential, ...args}) {
	const _credential = structuredClone(credential);
	const invalidBaseContext = {
	'@base': 'https://invalid.example.com/',
	};
	if(Array.isArray(_credential['@context'])) {
	_credential['@context'].push(invalidBaseContext);
	} else {
	_credential['@context'] = [_credential['@context'], invalidBaseContext];
	}
	const relativeType = 'UndefinedCredential';
	if(Array.isArray(_credential.type)) {
	_credential.type.push(relativeType);
	} else {
	_credential.type = [_credential.type, relativeType];
	}
	return {...args, credential: _credential};
	}

the context is deleted in a clean up step.

and

Implementations that use JSON-LD processing, such as RDF Dataset Canonicalization [RDF-CANON], MUST throw an error, which SHOULD be DATA_LOSS_DETECTION_ERROR, when data is dropped by a JSON-LD processor, such as when an undefined term is detected in an input document.

data-integrity-test-suite-assertion/vc-generator/generators.js

Lines 267 to 275 in 1f5c835

	function undefinedTerm({credential, selectiveSuite, ...args}) {
	const _credential = structuredClone(credential);
	_credential.credentialSubject.undefinedTerm = 'undefinedTerm';
	if(selectiveSuite) {
	selectiveSuite?._cryptosuite?.options?.selectivePointers.push(
	'/credentialSubject/undefinedTerm');
	}
	return {...args, credential: _credential, selectiveSuite};
	}

LMK if that is enough to close this issue.