typescript: fix types for hook functions so they can return 'skipped'

CHANGELOG.md

@@ -21,6 +21,8 @@ Please see [CONTRIBUTING.md](https://github.com/cucumber/cucumber/blob/master/CO
 
 ### Fixed
 
+* Fix types for hook functions so they can return e.g. `'skipped'` ([#1542](https://github.com/cucumber/cucumber-js/pull/1542))
+
 ## [7.0.0] (2020-12-21)
 
 ### Added

CONTRIBUTING.md

@@ -9,17 +9,21 @@ Before anything else, thank you. Thank you for taking some of your precious time
 
 ## Tests
 
-See the `package.json` scripts section for how to run the tests.
+See the `package.json` scripts section for how to run each category of tests.
 
-* lint
+* lint - `yarn lint`
   * [prettier](https://github.com/prettier/prettier)
   * [eslint](https://eslint.org/)
   * [dependency-lint](https://github.com/charlierudolph/dependency-lint)
-* unit tests
+* typescript tests - `yarn types-test`
+  * [tsd](https://github.com/SamVerschueren/tsd)
+* unit tests - `yarn unit-test`
   * [mocha](https://mochajs.org/)
   * [chai](https://www.chaijs.com/)
   * [sinon](https://sinonjs.org/)
-* feature tests
+* compatibility kit - `yarn cck-test`
+  * checking that cucumber-js emits the [correct messages](https://github.com/cucumber/cucumber/tree/master/compatibility-kit) 
+* feature tests - `yarn feature-test`
   * cucumber-js tests itself
 
 ## Internals
@@ -45,7 +49,7 @@ The runtime emits events with an [EventEmitter](https://nodejs.org/api/events.ht
 ### Coding style
 
 * Promises and ES7 async/await
-* Try to make things as unit testable as possible. If its hard to unit test, the class/function may be doing too much.
+* Try to make things as unit testable as possible. If it's hard to unit test, the class/function may be doing too much.
 
 ## Changelog
 

package.json

@@ -251,6 +251,7 @@
     "stream-buffers": "3.0.2",
     "stream-to-string": "1.2.0",
     "ts-node": "9.1.1",
+    "tsd": "^0.14.0",
     "typescript": "4.1.3"
   },
   "scripts": {
@@ -268,11 +269,18 @@
     "prefeature-test": "yarn run build-local",
     "prepublishOnly": "rm -rf lib && npm run build-local",
     "pretest-coverage": "yarn build-local",
+    "pretypes-test": "yarn build-local",
     "test-coverage": "nyc --silent mocha 'src/**/*_spec.ts' 'compatibility/**/*_spec.ts' && nyc --silent --no-clean node ./bin/cucumber-js && nyc report --reporter=lcov",
-    "test": "yarn run lint && yarn run unit-test && yarn run cck-test && yarn run feature-test",
+    "test": "yarn run lint && yarn run types-test && yarn run unit-test && yarn run cck-test && yarn run feature-test",
+    "types-test": "tsd",
     "unit-test": "mocha 'src/**/*_spec.ts'",
     "update-dependencies": "npx npm-check-updates --upgrade"
   },
+  "tsd": {
+    "compilerOptions": {
+      "types": ["long"]
+    }
+  },
   "bin": {
     "cucumber-js": "./bin/cucumber-js"
   },

src/support_code_library_builder/types.ts

@@ -22,10 +22,10 @@ export interface ITestStepHookParameter {
   testStepId: string
 }
 
-export type TestCaseHookFunctionWithoutParameter = () => void | Promise<void>
+export type TestCaseHookFunctionWithoutParameter = () => any | Promise<any>
 export type TestCaseHookFunctionWithParameter = (
   arg: ITestCaseHookParameter
-) => void | Promise<void>
+) => any | Promise<any>
 export type TestCaseHookFunction =
   | TestCaseHookFunctionWithoutParameter
   | TestCaseHookFunctionWithParameter

test-d/hooks.ts

@@ -0,0 +1,9 @@
+import { After, Before } from '../'
+
+Before(async function () {
+  return 'skipped'
+})
+
+After(async function () {
+  return 'skipped'
+})

test-d/steps.ts

@@ -0,0 +1,15 @@
+import { Given, When, Then } from '../'
+
+Given('some context', async function () {})
+
+When('an action context', async function () {})
+
+Then('verification', async function () {})
+
+Given('a step that will be skipped', async function () {
+  return 'skipped'
+})
+
+Given('a step that we need to implement', async function () {
+  return 'pending'
+})