Add test to lint

.eslintrc.js

@@ -12,7 +12,7 @@ module.exports = {
   parser: '@typescript-eslint/parser',
   parserOptions: {
     tsconfigRootDir: __dirname,
-    project: './tsconfig.json',
+    project: './tsconfig.lint.json',
   },
   rules: {
     '@typescript-eslint/no-unused-vars': [

package.json

@@ -22,7 +22,7 @@
   "scripts": {
     "test": "jest",
     "coverage": "npm test -- --coverage",
-    "lint": "eslint --ext .js,.ts src",
+    "lint": "eslint --ext .js,.ts src test",
     "clean": "rimraf dist esm",
     "prebuild": "npm run clean && npm run lint",
     "build:esm": "tsc --target es2018 --outDir esm",
@@ -58,7 +58,7 @@
     "eslint-plugin-unicorn": "^49.0.0",
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.5.0",
-    "prettier": "^3.1.1",
+    "prettier": "^3.2.4",
     "rimraf": "^5.0.1",
     "standard-changelog": "^5.0.0",
     "ts-jest": "^29.1.1",

test/tabixindexedfile.test.ts

@@ -60,7 +60,7 @@ test('can read ctgA:1000..4000', async () => {
 
   const headerString = await f.getHeader()
   expect(headerString.length).toEqual(10431)
-  expect(headerString[headerString.length - 1]).toEqual('\n')
+  expect(headerString.at(-1)).toEqual('\n')
 
   expect(await f.getMetadata()).toEqual({
     columnNumbers: { end: 0, ref: 1, start: 2 },
@@ -140,7 +140,7 @@ test('can query volvox.sort.gff3.gz.1', async () => {
   })
 
   const headerString = await f.getHeader()
-  expect(headerString[headerString.length - 1]).toEqual('\n')
+  expect(headerString.at(-1)).toEqual('\n')
   expect(headerString.length).toEqual(130)
 
   const lines = new RecordCollector()
@@ -173,7 +173,7 @@ test('can query gvcf.vcf.gz', async () => {
 
   const headerString = await f.getHeader()
   expect(headerString.length).toEqual(53)
-  expect(headerString[headerString.length - 1]).toEqual('\n')
+  expect(headerString.at(-1)).toEqual('\n')
 
   const lines = [] as string[]
   await f.getLines('ctgB', 0, Infinity, l => lines.push(l))
@@ -238,7 +238,7 @@ test('can query test.vcf.gz with a CSI index', async () => {
 
   const headerString = await f.getHeader()
   expect(headerString.length).toEqual(2560)
-  expect(headerString[headerString.length - 1]).toEqual('\n')
+  expect(headerString.at(-1)).toEqual('\n')
 
   const lines = new RecordCollector()
   await f.getLines('ctgB', 0, Infinity, lines.callback)
@@ -285,7 +285,7 @@ test('can fetch the entire header for a very large vcf header', async () => {
   const h = await f.getHeader()
   const lastBit = 'CN_105715_AGL\tCDC_QG-1_AGL\tCDC_SB-1_AGL\n'
   expect(h.slice(h.length - lastBit.length, h.length)).toEqual(lastBit)
-  expect(h[h.length - 1]).toEqual('\n')
+  expect(h.at(-1)).toEqual('\n')
   expect(h.length).toEqual(5315655)
 })
 

tsconfig.lint.json

@@ -0,0 +1,4 @@
+{
+  "extends": "./tsconfig",
+  "include": ["src", "test"]
+}

yarn.lock

@@ -3716,10 +3716,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@^3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.1.1.tgz#6ba9f23165d690b6cbdaa88cb0807278f7019848"
-  integrity sha512-22UbSzg8luF4UuZtzgiUOfcGM8s4tjBv6dJRT7j275NXsy2jb4aJa4NNveul5x4eqlF1wuhuR2RElK71RvmVaw==
+prettier@^3.2.4:
+  version "3.2.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.2.4.tgz#4723cadeac2ce7c9227de758e5ff9b14e075f283"
+  integrity sha512-FWu1oLHKCrtpO1ypU6J0SbK2d9Ckwysq6bHj/uaCP26DxrPpppCLQRGVuqAxSTvhF00AcvDRyYrLNW7ocBhFFQ==
 
 pretty-format@^29.0.0, pretty-format@^29.7.0:
   version "29.7.0"