repo: integrate packages from former merchant-backoffice.git

1 files changed, 62 insertions, 0 deletions

diff --git a/packages/merchant-backoffice-ui/tests/hooks/listener.test.ts b/packages/merchant-backoffice-ui/tests/hooks/listener.test.ts
new file mode 100644
index 000000000..ae34c1339
--- /dev/null
+++ b/packages/merchant-backoffice-ui/tests/hooks/listener.test.ts
@@ -0,0 +1,62 @@
+/*
+ This file is part of GNU Taler
+ (C) 2021 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+/**
+*
+* @author Sebastian Javier Marchano (sebasjm)
+*/
+
+import { renderHook, act } from '@testing-library/preact-hooks';
+import { useListener } from '../../src/hooks/listener';
+
+// jest.useFakeTimers()
+
+test('listener', async () => {
+
+
+  function createSomeString() {
+    return "hello"
+  }
+  async function addWorldToTheEnd(resultFromComponentB: string) {
+    return `${resultFromComponentB} world`
+  }
+  const expectedResult = "hello world"
+
+  const { result } = renderHook(() => useListener(addWorldToTheEnd))
+
+  if (!result.current) {
+    expect(result.current).toBeDefined()
+    return;
+  }
+
+  {
+    const [activator, subscriber] = result.current
+    expect(activator).toBeUndefined()
+
+    act(() => {
+      subscriber(createSomeString)
+    })
+
+  }
+
+  const [activator] = result.current
+  expect(activator).toBeDefined()
+  if (!activator) return;
+
+  const response = await activator()
+  expect(response).toBe(expectedResult)
+
+});