use reflow to migrate from flow to typescript

scm-ui/ui-components/src/repos/diffs.test.ts

@@ -0,0 +1,75 @@
+import { File, FileChangeType, Hunk } from './DiffTypes';
+import {
+  getPath,
+  createHunkIdentifier,
+  createHunkIdentifierFromContext,
+} from './diffs';
+
+describe('tests for diff util functions', () => {
+  const file = (
+    type: FileChangeType,
+    oldPath: string,
+    newPath: string,
+  ): File => {
+    return {
+      hunks: [],
+      type: type,
+      oldPath,
+      newPath,
+      newEndingNewLine: true,
+      oldEndingNewLine: true,
+    };
+  };
+
+  const add = (path: string) => {
+    return file('add', '/dev/null', path);
+  };
+
+  const rm = (path: string) => {
+    return file('delete', path, '/dev/null');
+  };
+
+  const modify = (path: string) => {
+    return file('modify', path, path);
+  };
+
+  const createHunk = (content: string): Hunk => {
+    return {
+      content,
+      changes: [],
+    };
+  };
+
+  describe('getPath tests', () => {
+    it('should pick the new path, for type add', () => {
+      const file = add('/etc/passwd');
+      const path = getPath(file);
+      expect(path).toBe('/etc/passwd');
+    });
+
+    it('should pick the old path, for type delete', () => {
+      const file = rm('/etc/passwd');
+      const path = getPath(file);
+      expect(path).toBe('/etc/passwd');
+    });
+  });
+
+  describe('createHunkIdentifier tests', () => {
+    it('should create identifier', () => {
+      const file = modify('/etc/passwd');
+      const hunk = createHunk('@@ -1,18 +1,15 @@');
+      const identifier = createHunkIdentifier(file, hunk);
+      expect(identifier).toBe('modify_/etc/passwd_@@ -1,18 +1,15 @@');
+    });
+  });
+
+  describe('createHunkIdentifierFromContext tests', () => {
+    it('should create identifier', () => {
+      const identifier = createHunkIdentifierFromContext({
+        file: rm('/etc/passwd'),
+        hunk: createHunk('@@ -1,42 +1,39 @@'),
+      });
+      expect(identifier).toBe('delete_/etc/passwd_@@ -1,42 +1,39 @@');
+    });
+  });
+});