Add coverageThreshold to jest.config.js

Author: ttsukagoshi

jest.config.js

@@ -8,6 +8,14 @@ module.exports = {
   collectCoverage: true,
   coverageDirectory: 'coverage',
   coverageProvider: 'v8',
+  coverageThreshold: {
+    global: {
+      branches: 100,
+      functions: 100,
+      lines: 100,
+      statements: 100,
+    },
+  },
   globals: {
     PropertiesService: {},
     SpreadsheetApp: {},