From 9db99178aaee1ddc59878b6b045fe208f694d8c8 Mon Sep 17 00:00:00 2001
From: Michal Dorner <dorner.michal@gmail.com>
Date: Mon, 8 Mar 2021 21:04:14 +0100
Subject: [PATCH] Add mocha-json test case for empty test results

---
 __tests__/fixtures/empty/mocha-json.json | 16 ++++++++++++++++
 __tests__/mocha-json.test.ts             | 17 +++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 __tests__/fixtures/empty/mocha-json.json

diff --git a/__tests__/fixtures/empty/mocha-json.json b/__tests__/fixtures/empty/mocha-json.json
new file mode 100644
index 0000000..31ca60b
--- /dev/null
+++ b/__tests__/fixtures/empty/mocha-json.json
@@ -0,0 +1,16 @@
+{
+  "stats": {
+    "suites": 0,
+    "tests": 0,
+    "passes": 0,
+    "pending": 0,
+    "failures": 0,
+    "start": "2021-03-08T20:01:44.391Z",
+    "end": "2021-03-08T20:01:44.391Z",
+    "duration": 0
+  },
+  "tests": [],
+  "pending": [],
+  "failures": [],
+  "passes": []
+}
\ No newline at end of file
diff --git a/__tests__/mocha-json.test.ts b/__tests__/mocha-json.test.ts
index 893808d..176d1ba 100644
--- a/__tests__/mocha-json.test.ts
+++ b/__tests__/mocha-json.test.ts
@@ -7,6 +7,23 @@ import {getReport} from '../src/report/get-report'
 import {normalizeFilePath} from '../src/utils/path-utils'
 
 describe('mocha-json tests', () => {
+
+  it('produces empty test run result when there are no test cases', async () => {
+    const fixturePath = path.join(__dirname, 'fixtures', 'empty', 'mocha-json.json')
+    const filePath = normalizeFilePath(path.relative(__dirname, fixturePath))
+    const fileContent = fs.readFileSync(fixturePath, {encoding: 'utf8'})
+
+    const opts: ParseOptions = {
+      parseErrors: true,
+      trackedFiles: []
+    }
+
+    const parser = new MochaJsonParser(opts)
+    const result = await parser.parse(filePath, fileContent)
+    expect(result.tests).toBe(0)
+    expect(result.result).toBe('success')
+  })
+
   it('report from ./reports/mocha-json test results matches snapshot', async () => {
     const fixturePath = path.join(__dirname, 'fixtures', 'mocha-json.json')
     const outputPath = path.join(__dirname, '__outputs__', 'mocha-json.md')