Add jest-cucumber-fusion (#43487)

* Add jest-cucumber-fusion

* Add 'declare module'

* Add support for Gherkin tables

* Fix failing tests for jest-cucumber-fusion

- Set minimum ts version

- Fix linting errors

types/jest-cucumber-fusion/index.d.ts

@@ -0,0 +1,20 @@
+// Type definitions for jest-cucumber-fusion 0.6
+// Project: https://github.com/b-yond-infinite-network/jest-cucumber-fusion#readme
+// Definitions by: Pelle Johnsen <https://github.com/pjoe>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// Minimum TypeScript Version: 3.4
+
+import { loadFeature } from 'jest-cucumber';
+
+export type CallBack = (...args: ReadonlyArray<string | Array<Record<string, string>>>) => void | Promise<void>;
+
+export function Given(name: string | RegExp, callback: CallBack): void;
+export function When(name: string | RegExp, callback: CallBack): void;
+export function Then(name: string | RegExp, callback: CallBack): void;
+export function And(name: string | RegExp, callback: CallBack): void;
+export function But(name: string | RegExp, callback: CallBack): void;
+
+export function Before(callback: () => void | Promise<void>): void;
+export function After(callback: () => void | Promise<void>): void;
+
+export function Fusion(feature: string, options?: Parameters<typeof loadFeature>[1]): void;

types/jest-cucumber-fusion/jest-cucumber-fusion-tests.ts

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+import * as jcf from 'jest-cucumber-fusion';
+
+type CbArgs = ReadonlyArray<string | Array<Record<string, string>>>;
+function cb(...args: CbArgs): void {}
+async function cbAsync(...args: CbArgs): Promise<void> {}
+
+jcf.Given('', cb); // $ExpectType void
+jcf.Given('', cbAsync); // $ExpectType void
+
+jcf.When('', cb); // $ExpectType void
+jcf.When('', cbAsync); // $ExpectType void
+
+jcf.Then('', cb); // $ExpectType void
+jcf.Then('', cbAsync); // $ExpectType void
+
+jcf.And('', cb); // $ExpectType void
+jcf.And('', cbAsync); // $ExpectType void
+
+jcf.But('', cb); // $ExpectType void
+jcf.But('', cbAsync); // $ExpectType void
+
+jcf.After(() => {}); // $ExpectType void
+jcf.After(async () => {}); // $ExpectType void
+
+jcf.Before(() => {}); // $ExpectType void
+jcf.Before(async () => {}); // $ExpectType void
+
+jcf.Fusion(''); // $ExpectType void
+jcf.Fusion('', { errors: true }); // $ExpectType void
+jcf.Fusion('', { loadRelativePath: true }); // $ExpectType void
+jcf.Fusion('', { scenarioNameTemplate: vars => vars.featureTitle }); // $ExpectType void
+jcf.Fusion('', { tagFilter: '' }); // $ExpectType void

types/jest-cucumber-fusion/package.json

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+{
+    "private": true,
+    "dependencies": {
+        "jest-cucumber": "^2.0.11"
+    }
+}

types/jest-cucumber-fusion/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "target": "es6",
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "jest-cucumber-fusion-tests.ts"
+    ]
+}

types/jest-cucumber-fusion/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }