Ensure equivalent Flow and TypeScript turbo module definition generates the same output

packages/react-native-codegen/src/parsers/consistency/__tests__/checkComponentSnaps-test.js

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+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails oncall+react_native
+ * @flow strict-local
+ * @format
+ */
+
+'use strict';
+
+const {compareSnaps, compareTsArraySnaps} = require('../compareSnaps.js');
+
+const flowFixtures = require('../../flow/components/__test_fixtures__/fixtures.js');
+const flowSnaps = require('../../flow/components/__tests__/__snapshots__/component-parser-test.js.snap');
+const tsFixtures = require('../../typescript/components/__test_fixtures__/fixtures.js');
+const tsSnaps = require('../../typescript/components/__tests__/__snapshots__/typescript-component-parser-test.js.snap');
+const tsExtraCases = ['ARRAY2_PROP_TYPES_NO_EVENTS'];
+
+compareSnaps(flowFixtures, flowSnaps, [], tsFixtures, tsSnaps, tsExtraCases);
+compareTsArraySnaps(tsSnaps, tsExtraCases);

packages/react-native-codegen/src/parsers/consistency/__tests__/checkModuleSnaps-test.js

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+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails oncall+react_native
+ * @flow strict-local
+ * @format
+ */
+
+'use strict';
+
+const {compareSnaps, compareTsArraySnaps} = require('../compareSnaps.js');
+
+const flowFixtures = require('../../flow/modules/__test_fixtures__/fixtures.js');
+const flowSnaps = require('../../flow/modules/__tests__/__snapshots__/module-parser-snapshot-test.js.snap');
+const tsFixtures = require('../../typescript/modules/__test_fixtures__/fixtures.js');
+const tsSnaps = require('../../typescript/modules/__tests__/__snapshots__/typescript-module-parser-snapshot-test.js.snap');
+const tsExtraCases = [
+  'NATIVE_MODULE_WITH_ARRAY2_WITH_ALIAS',
+  'NATIVE_MODULE_WITH_ARRAY2_WITH_UNION_AND_TOUPLE',
+  'NATIVE_MODULE_WITH_BASIC_ARRAY2',
+  'NATIVE_MODULE_WITH_COMPLEX_ARRAY2',
+];
+
+compareSnaps(flowFixtures, flowSnaps, [], tsFixtures, tsSnaps, tsExtraCases);
+compareTsArraySnaps(tsSnaps, tsExtraCases);

packages/react-native-codegen/src/parsers/consistency/compareSnaps.js

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+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails oncall+react_native
+ * @flow strict-local
+ * @format
+ */
+
+'use strict';
+
+function compareSnaps(
+  flowFixtures,
+  flowSnaps,
+  flowExtraCases,
+  tsFixtures,
+  tsSnaps,
+  tsExtraCases,
+) {
+  const flowCases = Object.keys(flowFixtures).sort();
+  const tsCases = Object.keys(tsFixtures).sort();
+  const commonCases = flowCases.filter(name => tsCases.indexOf(name) != -1);
+
+  describe('RN Codegen Parsers', () => {
+    it(`should not unintentionally contains test case for Flow but not for TypeScript`, () => {
+      expect(flowCases.filter(name => commonCases.indexOf(name) == -1)).toEqual(
+        flowExtraCases,
+      );
+    });
+
+    it(`should not unintentionally contains test case for TypeScript but not for Flow`, () => {
+      expect(tsCases.filter(name => commonCases.indexOf(name) == -1)).toEqual(
+        tsExtraCases,
+      );
+    });
+
+    for (const commonCase of commonCases) {
+      it(`should generate the same snap from Flow and TypeScript for fixture ${commonCase}`, () => {
+        expect(
+          flowSnaps[
+            `RN Codegen Flow Parser can generate fixture ${commonCase}`
+          ],
+        ).toEqual(
+          tsSnaps[
+            `RN Codegen TypeScript Parser can generate fixture ${commonCase}`
+          ],
+        );
+      });
+    }
+  });
+}
+
+function compareTsArraySnaps(tsSnaps, tsExtraCases) {
+  for (const array2Case of tsExtraCases.filter(
+    name => name.indexOf('ARRAY2') != -1,
+  )) {
+    const arrayCase = array2Case.replace('ARRAY2', 'ARRAY');
+    it(`should generate the same snap from fixture ${arrayCase} and ${array2Case}`, () => {
+      expect(
+        tsSnaps[
+          `RN Codegen TypeScript Parser can generate fixture ${arrayCase}`
+        ],
+      ).toEqual(
+        tsSnaps[
+          `RN Codegen TypeScript Parser can generate fixture ${array2Case}`
+        ],
+      );
+    });
+  }
+}
+
+module.exports = {
+  compareSnaps,
+  compareTsArraySnaps,
+};