use reflow to migrate from flow to typescript

scm-ui/ui-webapp/src/repos/components/list/groupByNamespace.test.ts

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+import groupByNamespace from './groupByNamespace';
+
+const base = {
+  type: 'git',
+  _links: {},
+};
+
+const slartiBlueprintsFjords = {
+  ...base,
+  namespace: 'slarti',
+  name: 'fjords-blueprints',
+};
+
+const slartiFjords = {
+  ...base,
+  namespace: 'slarti',
+  name: 'fjords',
+};
+
+const hitchhikerRestand = {
+  ...base,
+  namespace: 'hitchhiker',
+  name: 'restand',
+};
+const hitchhikerPuzzle42 = {
+  ...base,
+  namespace: 'hitchhiker',
+  name: 'puzzle42',
+};
+
+const hitchhikerHeartOfGold = {
+  ...base,
+  namespace: 'hitchhiker',
+  name: 'heartOfGold',
+};
+
+const zaphodMarvinFirmware = {
+  ...base,
+  namespace: 'zaphod',
+  name: 'marvin-firmware',
+};
+
+it('should group the repositories by their namespace', () => {
+  const repositories = [
+    zaphodMarvinFirmware,
+    slartiBlueprintsFjords,
+    hitchhikerRestand,
+    slartiFjords,
+    hitchhikerHeartOfGold,
+    hitchhikerPuzzle42,
+  ];
+
+  const expected = [
+    {
+      name: 'hitchhiker',
+      repositories: [
+        hitchhikerHeartOfGold,
+        hitchhikerPuzzle42,
+        hitchhikerRestand,
+      ],
+    },
+    {
+      name: 'slarti',
+      repositories: [slartiFjords, slartiBlueprintsFjords],
+    },
+    {
+      name: 'zaphod',
+      repositories: [zaphodMarvinFirmware],
+    },
+  ];
+
+  expect(groupByNamespace(repositories)).toEqual(expected);
+});