ignore unneccessary files in test coverage

we would like to only check files that we've added (e.g. not included in the moj typescript template) and not check files that are just configuration.

server/app.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import express from 'express'
 
 import path from 'path'

server/applicationVersion.ts

@@ -1,4 +1,6 @@
 // eslint-disable import/no-unresolved,global-require
+/* istanbul ignore file */
+
 import fs from 'fs'
 
 const packageData = JSON.parse(fs.readFileSync('./package.json').toString())

server/config.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 const production = process.env.NODE_ENV === 'production'
 
 function get<T>(name: string, fallback: T, options = { requireInProduction: false }): T | string {

server/data/healthCheck.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import superagent from 'superagent'
 import Agent, { HttpsAgent } from 'agentkeepalive'
 import logger from '../../logger'

server/data/index.ts

@@ -3,6 +3,8 @@
  * Do appinsights first as it does some magic instrumentation work, i.e. it affects other 'require's
  * In particular, applicationinsights automatically collects bunyan logs
  */
+/* istanbul ignore file */
+
 import { initialiseAppInsights, buildAppInsightsClient } from '../utils/azureAppInsights'
 
 initialiseAppInsights()

server/data/redisClient.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import { createClient } from 'redis'
 
 import logger from '../../logger'

server/data/restClient.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import superagent from 'superagent'
 import Agent, { HttpsAgent } from 'agentkeepalive'
 import { Readable } from 'stream'

server/data/restClientMetricsMiddleware.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import { Socket } from 'net'
 import promClient from 'prom-client'
 import { Response, SuperAgentRequest } from 'superagent'

server/data/tokenStore.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import type { RedisClient } from './redisClient'
 
 import logger from '../../logger'

server/data/tokenVerification.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import superagent from 'superagent'
 import type { Request } from 'express'
 import getSanitisedError from '../sanitisedError'

server/errorHandler.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import type { Request, Response, NextFunction } from 'express'
 import type { HTTPError } from 'superagent'
 import logger from '../logger'

server/monitoring/metricsApp.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import express from 'express'
 import promBundle from 'express-prom-bundle'
 

server/routes/testutils/appSetup.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import express, { Express } from 'express'
 import cookieSession from 'cookie-session'
 import createError from 'http-errors'

server/sanitisedError.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import type { ResponseError } from 'superagent'
 
 interface SanitisedError {

server/services/healthCheck.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import promClient from 'prom-client'
 import { serviceCheckFactory } from '../data/healthCheck'
 import config from '../config'

server/utils/azureAppInsights.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import { setup, defaultClient, TelemetryClient, DistributedTracingModes } from 'applicationinsights'
 import applicationVersion from '../applicationVersion'
 

server/utils/nunjucksSetup.ts

@@ -1,4 +1,6 @@
 /* eslint-disable no-param-reassign */
+/* istanbul ignore file */
+
 import nunjucks from 'nunjucks'
 import express from 'express'
 import * as pathModule from 'path'

tsconfig.json

@@ -24,6 +24,6 @@
       "@approved-premises/ui": ["server/@types/ui/index.d.ts"]
     }
   },
-  "exclude": ["node_modules", "assets/**/*.js", "integration_tests", "dist", "cypress.config.ts"],
+  "exclude": ["node_modules", "assets/**/*.js", "integration_tests", "dist", "cypress.config.ts", "coverage/**"],
   "include": ["**/*.js", "**/*.ts"]
 }