From 0e9661d4a3ba3b656ff4b2f2204a821a73cacee4 Mon Sep 17 00:00:00 2001
From: Naoki Oketani <okepy.naoki@gmail.com>
Date: Sat, 14 Dec 2019 12:56:45 +0900
Subject: [PATCH] Add unit test for error handling (#30)

---
 __tests__/audit.test.ts | 57 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/__tests__/audit.test.ts b/__tests__/audit.test.ts
index 320a476..9af3020 100644
--- a/__tests__/audit.test.ts
+++ b/__tests__/audit.test.ts
@@ -54,4 +54,61 @@ describe('run', () => {
     audit.run()
     expect(audit.foundVulnerability()).toBeFalsy()
   })
+
+  test('throws an error if error is not null', async () => {
+    mocked(child_process).spawnSync.mockImplementation((): any => {
+      return {
+        pid: 100,
+        output: '',
+        stdout: '',
+        stderr: '',
+        status: 0,
+        signal: null,
+        error: new Error('Something is wrong')
+      }
+    })
+
+    expect.assertions(1)
+    const r = audit.run()
+    const e = new Error('Something is wrong')
+    await expect(r).rejects.toEqual(e)
+  })
+
+  test('throws an error if status is null', async () => {
+    mocked(child_process).spawnSync.mockImplementation((): any => {
+      return {
+        pid: 100,
+        output: '',
+        stdout: '',
+        stderr: '',
+        status: null,
+        signal: 'SIGTERM',
+        error: null
+      }
+    })
+
+    expect.assertions(1)
+    const r = audit.run()
+    const e = new Error('the subprocess terminated due to a signal.')
+    await expect(r).rejects.toEqual(e)
+  })
+
+  test('throws an error if stderr is null', async () => {
+    mocked(child_process).spawnSync.mockImplementation((): any => {
+      return {
+        pid: 100,
+        output: '',
+        stdout: '',
+        stderr: 'Something is wrong',
+        status: 1,
+        signal: null,
+        error: null
+      }
+    })
+
+    expect.assertions(1)
+    const r = audit.run()
+    const e = new Error('Something is wrong')
+    await expect(r).rejects.toEqual(e)
+  })
 })