test: add test compatibility for combined v19 and v20 lint and load tests

Author: jdbruijn

package.json

@@ -60,11 +60,6 @@
       "text-summary"
     ]
   },
-  "overrides": {
-    "@commitlint/config-conventional": {
-      "conventional-changelog-conventionalcommits": ">=9.0.0"
-    }
-  },
   "devDependencies": {
     "@ava/typescript": "6.0.0",
     "@commitlint/cli": "20.4.2",

src/function-rule.test.ts

@@ -12,7 +12,7 @@ test('calls an implementation fuction once', async (t) => {
 test('passes arguments to an implementation function', async (t) => {
   const implementation = fake();
   const commit = {type: 'test'};
-  await functionRule(commit as Commit, 'always', implementation);
+  await functionRule(commit as unknown as Commit, 'always', implementation);
   t.deepEqual(implementation.firstCall.args, [commit, 'always']);
 });
 

src/index.test.ts

@@ -26,7 +26,10 @@ const loadPlugin = test.macro<[keyof typeof versions]>({
      * configuration.
      */
     await t.notThrowsAsync(
-      versions[version].load({plugins: [plugin]}, {file: 'package.json'}),
+      versions[version].load(
+        {plugins: [plugin as unknown as any]},
+        {file: 'package.json'},
+      ),
     );
   },
   title(_, version) {
@@ -37,6 +40,10 @@ const loadPlugin = test.macro<[keyof typeof versions]>({
 test(loadPlugin, '19.x');
 test(loadPlugin, '20.x');
 
+test('@commitlint/load@19.xx can load the plugin', async (t) => {
+  await t.notThrowsAsync(load20x({plugins: [plugin]}, {file: 'package.json'}));
+});
+
 /**
  * The type of the `RulesConfig` have changed in [commitlint v20.3.1](
  * https://github.com/conventional-changelog/commitlint/releases/tag/v20.3.1),
@@ -72,7 +79,8 @@ const lintUsingPluginRules = test.macro<[keyof typeof versions]>({
                 : () => config.ruleOutcome,
             ],
           } as unknown as any,
-          {plugins: {'function-rules': plugin}},
+          // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+          {plugins: {'function-rules': plugin as unknown as any}},
         );
 
         const message = `rule "${rule}" can't be used by commitlint`;