test(config-lerna-scopes): reuse npm bootstrap to simplify tests (#2479)

* chore: update dependency @lerna/project to v4 (#2447)

* chore: update dependency @lerna/project to v4

* feat!: update to lerna v4

BREAKING CHANGE: upgrade to lerna v4

Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: escapedcat <github@htmlcss.de>

* test(config-lerna-scopes): reuse npm bootstrap to simplify tests

* test(config-lerna-scopes): reuse npm bootstrap to simplify tests

* test: fix issue after merge

* test: one more fix after merge

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: escapedcat <github@htmlcss.de>

Author: 4 people

@commitlint/config-lerna-scopes/fixtures/basic/package.json

@@ -2,6 +2,7 @@
   "name": "basic",
   "version": "1.0.0",
   "devDependencies": {
-    "lerna": "^4.0.0"
+    "lerna": "^4.0.0",
+    "@lerna/project": "^4.0.0"
   }
 }

@commitlint/config-lerna-scopes/fixtures/empty/package.json

@@ -2,6 +2,7 @@
   "name": "empty",
   "version": "1.0.0",
   "devDependencies": {
-    "lerna": "^4.0.0"
+    "lerna": "^4.0.0",
+    "@lerna/project": "^4.0.0"
   }
 }

@commitlint/config-lerna-scopes/fixtures/lerna-two/lerna.json

@@ -2,6 +2,7 @@
   "name": "basic",
   "version": "1.0.0",
   "devDependencies": {
-    "lerna": "^4.0.0"
+    "lerna": "^4.0.0",
+    "@lerna/project": "^4.0.0"
   }
 }

@commitlint/config-lerna-scopes/fixtures/lerna-two/package.json

@@ -2,6 +2,7 @@
   "name": "scoped",
   "version": "1.0.0",
   "devDependencies": {
-    "lerna": "^4.0.0"
+    "lerna": "^4.0.0",
+    "@lerna/project": "^4.0.0"
   }
 }

@commitlint/config-lerna-scopes/fixtures/lerna-two/packages/a2/package.json

@@ -2,7 +2,8 @@
   "name": "yarn",
   "version": "1.0.0",
   "devDependencies": {
-    "lerna": "^4.0.0"
+    "lerna": "^4.0.0",
+    "@lerna/project": "^4.0.0"
   },
   "workspaces": [
     "@packages/*"

@commitlint/config-lerna-scopes/fixtures/lerna-two/packages/b2/package.json

@@ -1,5 +1,5 @@
 import Path from 'path';
-import {lerna} from '@commitlint/test';
+import {npm} from '@commitlint/test';
 import config from '.';
 
 test('exports rules key', () => {
@@ -47,30 +47,30 @@ test('scope-enum has expected modifier', async () => {
 
 test('returns empty value for empty lerna repository', async () => {
 	const {'scope-enum': fn} = config.rules;
-	const cwd = await lerna.bootstrap('empty', __dirname);
+	const cwd = await npm.bootstrap('fixtures/empty', __dirname);
 	const [, , value] = await fn({cwd});
 	expect(value).toEqual([]);
 });
 
 test('returns expected value for basic lerna repository', async () => {
 	const {'scope-enum': fn} = config.rules;
-	const cwd = await lerna.bootstrap('basic', __dirname);
+	const cwd = await npm.bootstrap('fixtures/basic', __dirname);
 
 	const [, , value] = await fn({cwd});
 	expect(value).toEqual(['a', 'b']);
 });
 
 test('returns expected value for lerna repository containing modules', async () => {
 	const {'scope-enum': fn} = config.rules;
-	const cwd = await lerna.bootstrap('modules', __dirname);
+	const cwd = await npm.bootstrap('fixtures/modules', __dirname);
 
 	const [, , value] = await fn({cwd});
 	expect(value).toEqual(['a']);
 });
 
 test('returns expected value for scoped lerna repository', async () => {
 	const {'scope-enum': fn} = config.rules;
-	const cwd = await lerna.bootstrap('scoped', __dirname);
+	const cwd = await npm.bootstrap('fixtures/scoped', __dirname);
 
 	const [, , value] = await fn({cwd});
 	expect(value).toEqual(['a', 'b']);