feat: new CLI option --test-pattern

.changeset/gorgeous-keys-leave.md

@@ -0,0 +1,6 @@
+---
+"@pnpm/common-cli-options-help": minor
+"pnpm": minor
+---
+
+New CLI option added: --test-pattern.

packages/common-cli-options-help/src/index.ts

@@ -96,6 +96,10 @@ export const FILTERING = {
       description: 'If a selector starts with !, it means the packages matching the selector must be excluded. E.g., "pnpm --filter !foo" selects all packages except "foo"',
       name: '--filter !<selector>',
     },
+    {
+      description: 'Defines files related to tests. Useful with the changed since filter. When selecting only changed packages and their dependent packages, the dependent packages will be ignored in case a package has changes only in tests. Usage example: pnpm --filter=...[origin/master] --test-pattern=test/* test',
+      name: '--test-pattern <pattern>',
+    },
   ],
   title: 'Filtering options (run the command only on packages that satisfy at least one of the selectors)',
 }

packages/pnpm/src/cmd/index.ts

@@ -34,6 +34,7 @@ export const GLOBAL_OPTIONS = R.pick([
   'prefix',
   'reporter',
   'stream',
+  'test-pattern',
   'workspace-packages',
   'workspace-root',
 ], allTypes)