Is the testing module always downloaded from npm?

[simone-sanfratello]

Is the testing module always downloaded from npm?

[richardlau]

Yes, unless useGitClone is set:

citgm/README.md

Line 141 in c47ab10

"useGitClone": true Use a shallow git clone instead of downloading the module

[simone-sanfratello]

Thanks

[SimenB]

head: true also works, I think?

citgm/README.md

Line 128 in c47ab10

"head": true Use the head of the default branch

[richardlau]

head: true also works, I think?

citgm/README.md

Line 128 in c47ab10

"head": true Use the head of the default branch

Possibly. If someone wants to look through the logic, it's in lookup() in lib/lookup.js:

citgm/lib/lookup.js

Lines 86 to 209 in b8193a7

	/**
	* Certain known modules in npm do not publish their tests,
	* causing npm test to fail. In such cases, we need to grab
	* the tarball from github. If the package has been published
	* from its git repository, npm adds a `gitHead` property to
	* the package.json and we can use that to generate the tarball
	* URL. Otherwise, we fallback to the git tag. Complicating matters
	* is the fact that git tags are not named consistently.
	* The lookup mechanism allows us to make a "best guess"
	* mapping for known modules. If the -l or --lookup CLI
	* argument is known, the npm spec is converted into a
	* github tarball url using the information contained in a
	* lookup json file. When -l or --lookup is passed without
	* a value, the built-in lookup.json file is used. Alternatively,
	* the path to a different lookup json file can be specified
	**/
	export function lookup(context) {
	const lookupTable = getLookupTable(context.options);
	if (!lookupTable) {
	throw new Error('Lookup table could not be loaded');
	}
	const detail = context.module;
	context.emit('data', 'info', 'lookup', detail.name);
	const meta = context.meta;
	if (meta) {
	const rep = lookupTable[detail.name];
	context.module.version = meta.version;
	if (rep) {
	context.emit('data', 'info', 'lookup-found', detail.name);
	if (rep.envVar) {
	context.module.envVar = rep.envVar;
	}
	if (rep.stripAnsi) {
	context.module.stripAnsi = rep.stripAnsi;
	}
	if (typeof rep.replace === 'boolean' && !rep.replace) {
	rep.npm = true;
	}
	if (!rep.npm) {
	if (!rep.repo && !meta.repository) {
	throw new Error('no-repository-field in package.json');
	}
	if (rep.useGitClone) {
	const { url, ref } = makeClone(
	getRepo(rep.repo, meta),
	rep.head ? null : detail.fetchSpec,
	meta['dist-tags'],
	rep.prefix
	);
	context.emit(
	'data',
	'info',
	`${context.module.name} lookup-replace`,
	url
	);
	context.module.useGitClone = true;
	context.module.raw = url;
	context.module.ref = ref;
	} else {
	const gitHead = rep.head || rep.ignoreGitHead ? null : meta.gitHead;
	const url = makeUrl(
	getRepo(rep.repo, meta),
	rep.head ? null : detail.fetchSpec,
	meta['dist-tags'],
	rep.head ? null : rep.prefix,
	context.options.sha || rep.sha || gitHead
	);
	context.emit(
	'data',
	'info',
	`${context.module.name} lookup-replace`,
	url
	);
	context.module.raw = url;
	}
	}
	if (rep.install) {
	context.emit(
	'data',
	'verbose',
	`${context.module.name} lookup-install`,
	rep.install
	);
	context.module.install = rep.install;
	}
	if (rep.scripts) {
	context.emit(
	'data',
	'silly',
	`${context.module.name} lookup-scripts`,
	rep.scripts
	);
	context.module.scripts = rep.scripts;
	}
	if (rep.tags) {
	context.module.tags = rep.tags;
	}
	if (rep.yarn) {
	context.module.useYarn = true;
	}
	if (rep.timeout) {
	context.module.timeout = rep.timeout;
	}
	context.module.flaky = context.options.failFlaky
	? false
	: defaultMatcher.isMatch(rep.flaky);
	context.module.expectFail = context.options.expectFail
	? false
	: defaultMatcher.isMatch(rep.expectFail);
	} else {
	context.emit('data', 'info', 'lookup-notfound', detail.name);
	if (meta.gitHead) {
	const url = makeUrl(
	getRepo(null, meta),
	null,
	null,
	null,
	context.options.sha || meta.gitHead
	);
	context.emit('data', 'info', 'lookup-githead', url);
	context.module.raw = url;
	}
	}
	}