fix(config): resolve <rootDir> to . in coverageDirectory (#26)

lib/__tests__/getData.test.js

@@ -117,3 +117,22 @@ it('returns parsed config and report contents when a custom coverage directory i
  },
  })
 })
+
+it('resolves <rootDir> as current directory', async () => {
+ jest.mock(
+ '../jest.config.js',
+ () => ({
+ coverageThreshold,
+ coverageDirectory: '<rootDir>/custom/coverage/directory',
+ }),
+ { virtual: true },
+ )
+
+ await getData(configPath)
+
+ expect(fs.readFileSync).toHaveBeenCalledTimes(1)
+ expect(fs.readFileSync).toHaveBeenCalledWith(
+ `/workingDir/custom/coverage/directory/coverage-summary.json`,
+ 'utf8',
+ )
+})

lib/getData.js

@@ -9,7 +9,7 @@ const getData = async configPath => {
  } = typeof config === 'function' ? await config() : config
  const reportPath = path.resolve(
  path.dirname(configPath),
- coverageDirectory,
+ coverageDirectory.replace('<rootDir>', '.'),
  'coverage-summary.json',
  )
  const { total: coverages } = JSON.parse(fs.readFileSync(reportPath, 'utf8'))