Address eslint errors and warnings.

__tests__/cache.test.ts

@@ -94,7 +94,7 @@ describe('dependency cache', () => {
     beforeEach(() => {
       spyCacheRestore = jest
         .spyOn(cache, 'restoreCache')
-        .mockImplementation((paths: string[], primaryKey: string) =>
+        .mockImplementation((_paths: string[], _primaryKey: string) =>
           Promise.resolve(undefined)
         )
       spyWarning.mockImplementation(() => null)
@@ -184,7 +184,7 @@ describe('dependency cache', () => {
     beforeEach(() => {
       spyCacheSave = jest
         .spyOn(cache, 'saveCache')
-        .mockImplementation((paths: string[], key: string) =>
+        .mockImplementation((_paths: string[], _key: string) =>
           Promise.resolve(0)
         )
       spyWarning.mockImplementation(() => null)

__tests__/cleanup.test.ts

@@ -35,7 +35,6 @@ describe('cleanup', () => {
     ReturnType<typeof cache.saveCache>,
     Parameters<typeof cache.saveCache>
   >
-  let spyJobStatusSuccess: jest.SpyInstance
 
   beforeEach(() => {
     spyWarning = jest.spyOn(core, 'warning')
@@ -50,7 +49,7 @@ describe('cleanup', () => {
   })
 
   it('does not fail nor warn even when the save process throws a ReserveCacheError', async () => {
-    spyCacheSave.mockImplementation((paths: string[], key: string) =>
+    spyCacheSave.mockImplementation((_paths: string[], _key: string) =>
       Promise.reject(
         new cache.ReserveCacheError(
           'Unable to reserve cache with key, another job may be creating this cache.'
@@ -66,7 +65,7 @@ describe('cleanup', () => {
   })
 
   it('does not fail even though the save process throws error', async () => {
-    spyCacheSave.mockImplementation((paths: string[], key: string) =>
+    spyCacheSave.mockImplementation((_paths: string[], _key: string) =>
       Promise.reject(new Error('Unexpected error'))
     )
     jest.spyOn(core, 'getInput').mockImplementation((name: string) => {

__tests__/graalvm.test.ts

@@ -13,7 +13,7 @@ process.env['RUNNER_TOOL_CACHE'] = path.join(__dirname, 'TOOL_CACHE')
 process.env['RUNNER_TEMP'] = path.join(__dirname, 'TEMP')
 
 test('request invalid version/javaVersion', async () => {
-  for (var combination of [
+  for (const combination of [
     ['22.3.0', '7'],
     ['22.3', '17'],
     ['22.3', '7']
@@ -23,7 +23,7 @@ test('request invalid version/javaVersion', async () => {
       await graalvm.setUpGraalVMRelease('', combination[0], combination[1])
     } catch (err) {
       if (!(err instanceof Error)) {
-        fail(`Unexpected non-Error: ${err}`)
+        throw new Error(`Unexpected non-Error: ${err}`)
       }
       error = err
     }
@@ -36,17 +36,17 @@ test('request invalid version/javaVersion', async () => {
 
 test('find version/javaVersion', async () => {
   // Make sure the action can find the latest Java version for known major versions
-  for (var majorJavaVersion of ['17', '20']) {
+  for (const majorJavaVersion of ['17', '20']) {
     await graalvm.findLatestGraalVMJDKCEJavaVersion(majorJavaVersion)
   }
 
   let error = new Error('unexpected')
   try {
     await graalvm.findLatestGraalVMJDKCEJavaVersion('11')
-    fail('Should not find Java version for 11')
+    throw new Error('Should not find Java version for 11')
   } catch (err) {
     if (!(err instanceof Error)) {
-      fail(`Unexpected non-Error: ${err}`)
+      throw new Error(`Unexpected non-Error: ${err}`)
     }
     error = err
   }
@@ -68,7 +68,7 @@ test('find version/javaVersion', async () => {
     findGraalVMVersion(invalidRelease)
   } catch (err) {
     if (!(err instanceof Error)) {
-      fail(`Unexpected non-Error: ${err}`)
+      throw new Error(`Unexpected non-Error: ${err}`)
     }
     error = err
   }
@@ -78,17 +78,17 @@ test('find version/javaVersion', async () => {
     findHighestJavaVersion(latestRelease, 'invalid')
   } catch (err) {
     if (!(err instanceof Error)) {
-      fail(`Unexpected non-Error: ${err}`)
+      throw new Error(`Unexpected non-Error: ${err}`)
     }
     error = err
   }
   expect(error.message).toContain('Could not find highest Java version.')
 })
 
-test('find version/javaVersion', async () => {
-  let url22EA = await findLatestEABuildDownloadUrl('22-ea')
+test('find EA version/javaVersion', async () => {
+  const url22EA = await findLatestEABuildDownloadUrl('22-ea')
   expect(url22EA).not.toBe('')
-  let urlLatestEA = await findLatestEABuildDownloadUrl('latest-ea')
+  const urlLatestEA = await findLatestEABuildDownloadUrl('latest-ea')
   expect(urlLatestEA).not.toBe('')
 
   let error = new Error('unexpected')
@@ -96,7 +96,7 @@ test('find version/javaVersion', async () => {
     await findLatestEABuildDownloadUrl('8-ea')
   } catch (err) {
     if (!(err instanceof Error)) {
-      fail(`Unexpected non-Error: ${err}`)
+      throw new Error(`Unexpected non-Error: ${err}`)
     }
     error = err
   }

__tests__/liberica.test.ts

@@ -7,6 +7,8 @@ import {expect, test} from '@jest/globals'
 process.env['RUNNER_TOOL_CACHE'] = path.join(__dirname, 'TOOL_CACHE')
 process.env['RUNNER_TEMP'] = path.join(__dirname, 'TEMP')
 
+/* eslint jest/expect-expect: ["error", { "assertFunctionNames": ["expect", "expectLatestToBe", "expectURL"] }] */
+
 test('find latest JDK version', async () => {
   // Make sure the action can find the latest Java version for known major versions
   await expectLatestToBe('11', atLeast('11.0.22+12'))
@@ -61,8 +63,8 @@ function atLeast(expectedMinVersion: string): verifier {
   return function (
     version: string,
     major: number,
-    minor: number,
-    patch: number
+    _minor: number,
+    _patch: number
   ) {
     expect(major).toBe(expectedMajor)
     if (semver.compareBuild(version, expectedMinVersion) < 0) {
@@ -90,9 +92,9 @@ function upToBuild(expectedMinVersion: string): verifier {
 function exactly(expectedVersion: string): verifier {
   return function (
     version: string,
-    major: number,
-    minor: number,
-    patch: number
+    _major: number,
+    _minor: number,
+    _patch: number
   ) {
     if (semver.compareBuild(version, expectedVersion) != 0) {
       throw new Error(`Expected version ${expectedVersion} but got ${version}`)

__tests__/mandrel.test.ts

@@ -7,7 +7,7 @@ process.env['RUNNER_TOOL_CACHE'] = path.join(__dirname, 'TOOL_CACHE')
 process.env['RUNNER_TEMP'] = path.join(__dirname, 'TEMP')
 
 test('request invalid version/javaVersion combination', async () => {
-  for (var combination of [
+  for (const combination of [
     ['mandrel-23.1.1.0-Final', '17'],
     ['mandrel-23.0.2.1-Final', '21']
   ]) {
@@ -16,7 +16,7 @@ test('request invalid version/javaVersion combination', async () => {
       await mandrel.setUpMandrel(combination[0], combination[1])
     } catch (err) {
       if (!(err instanceof Error)) {
-        fail(`Unexpected non-Error: ${err}`)
+        throw new Error(`Unexpected non-Error: ${err}`)
       }
       error = err
     }
@@ -27,7 +27,7 @@ test('request invalid version/javaVersion combination', async () => {
   }
 })
 test('request invalid version', async () => {
-  for (var combination of [
+  for (const combination of [
     ['mandrel-23.1.1.0', '21'],
     ['mandrel-23.0.2.1', '17']
   ]) {
@@ -36,7 +36,7 @@ test('request invalid version', async () => {
       await mandrel.setUpMandrel(combination[0], combination[1])
     } catch (err) {
       if (!(err instanceof Error)) {
-        fail(`Unexpected non-Error: ${err}`)
+        throw new Error(`Unexpected non-Error: ${err}`)
       }
       error = err
     }
@@ -56,7 +56,7 @@ test('find latest', async () => {
 
 test('get known latest Mandrel for specific JDK', async () => {
   // Test deprecated versions that won't get updates anymore
-  for (var combination of [
+  for (const combination of [
     ['11', '22.2.0.0-Final'],
     ['20', '23.0.1.2-Final']
   ]) {
@@ -68,7 +68,7 @@ test('get known latest Mandrel for specific JDK', async () => {
 
 test('get latest Mandrel for specific JDK', async () => {
   // Test supported versions
-  for (var javaVersion of ['17', '21']) {
+  for (const javaVersion of ['17', '21']) {
     const latest = await mandrel.getLatestMandrelReleaseUrl(javaVersion)
     expect(latest).toContain(`mandrel-java${javaVersion}`)
   }

__tests__/msvc.test.ts

@@ -7,7 +7,7 @@ process.env['RUNNER_TOOL_CACHE'] = path.join(__dirname, 'TOOL_CACHE')
 process.env['RUNNER_TEMP'] = path.join(__dirname, 'TEMP')
 
 test('decide whether Window env must be set up for GraalVM for JDK', async () => {
-  for (var javaVersion of [
+  for (const javaVersion of [
     '17',
     '17.0.8',
     '17.0',
@@ -22,7 +22,7 @@ test('decide whether Window env must be set up for GraalVM for JDK', async () =>
 })
 
 test('decide whether Window env must be set up for legacy GraalVM', async () => {
-  for (var combination of [
+  for (const combination of [
     ['7', '22.3.0'],
     ['17', '22.3'],
     ['7', '22.3'],

__tests__/sbom.test.ts

@@ -248,10 +248,13 @@ describe('sbom feature', () => {
       const invalidSBOM = {
         'out-of-spec-field': {}
       }
+      let error
       try {
         await setUpAndProcessSBOM(invalidSBOM)
-        fail('Expected an error since invalid JSON was passed')
-      } catch (error) {
+        throw new Error('Expected an error since invalid JSON was passed')
+      } catch (e) {
+        error = e
+      } finally {
         expect(error).toBeInstanceOf(Error)
       }
     })

__tests__/utils.test.ts

@@ -1,9 +1,8 @@
-import * as path from 'path'
 import {expect, test} from '@jest/globals'
 import {toSemVer} from '../src/utils'
 
 test('convert version', async () => {
-  for (var inputAndExpectedOutput of [
+  for (const inputAndExpectedOutput of [
     ['22', '22.0.0'],
     ['22.0', '22.0.0'],
     ['22.0.0', '22.0.0'],
@@ -17,13 +16,13 @@ test('convert version', async () => {
 })
 
 test('convert invalid version', async () => {
-  for (var input of ['dev', 'abc', 'a.b.c']) {
+  for (const input of ['dev', 'abc', 'a.b.c']) {
     let error = new Error('unexpected')
     try {
       toSemVer(input)
     } catch (err) {
       if (!(err instanceof Error)) {
-        fail(`Unexpected non-Error: ${err}`)
+        throw new Error(`Unexpected non-Error: ${err}`)
       }
       error = err
     }

eslint.config.mjs

@@ -70,6 +70,7 @@ export default [
       camelcase: 'off',
       'eslint-comments/no-use': 'off',
       'eslint-comments/no-unused-disable': 'off',
+      '@typescript-eslint/no-unused-vars': ['error', {argsIgnorePattern: '^_'}],
       'i18n-text/no-en': 'off',
       'import/no-namespace': 'off',
       'no-console': 'off',

package.json

@@ -11,7 +11,7 @@
     "lint": "npx eslint .",
     "package": "ncc build -o dist/main src/main.ts && ncc build -o dist/cleanup src/cleanup.ts",
     "test": "npx jest",
-    "all": "npm run format:write && npm run lint && npm run test && npm run coverage && npm run package"
+    "all": "npm run format:write && npm run lint && npm run test && npm run package"
   },
   "repository": {
     "type": "git",

src/cleanup.ts

@@ -46,7 +46,6 @@ async function saveCache(): Promise<void> {
  * @returns Promise that will ignore error reported by the given promise
  */
 async function ignoreErrors(promise: Promise<void>): Promise<unknown> {
-  /* eslint-disable github/no-then */
   return new Promise(resolve => {
     promise
       .catch(error => {

src/graalvm.ts

@@ -89,7 +89,7 @@ export async function findLatestEABuildDownloadUrl(
     response = await getContents(ORACLE_GRAALVM_REPO_EA_BUILDS, filePath)
   } catch (error) {
     throw new Error(
-      `Unable to resolve download URL for '${javaEaVersion}'. Please make sure the java-version is set correctly. ${c.ERROR_HINT}`
+      `Unable to resolve download URL for '${javaEaVersion}' (reason: ${error}). Please make sure the java-version is set correctly. ${c.ERROR_HINT}`
     )
   }
   if (

src/mandrel.ts

@@ -1,6 +1,6 @@
 import * as c from './constants'
 import * as httpClient from '@actions/http-client'
-import {downloadExtractAndCacheJDK, getLatestRelease} from './utils'
+import {downloadExtractAndCacheJDK} from './utils'
 import {downloadTool} from '@actions/tool-cache'
 import {basename} from 'path'
 
@@ -11,7 +11,9 @@ const DISCO_API_BASE = 'https://api.foojay.io/disco/v3.0/packages/jdks'
 
 interface JdkData {
   message: string
+  /* eslint-disable @typescript-eslint/no-explicit-any */
   result: any
+  /* eslint-enable @typescript-eslint/no-explicit-any */
 }
 
 export async function setUpMandrel(
@@ -22,7 +24,9 @@ export async function setUpMandrel(
   let mandrelHome
   switch (version) {
     case '':
-    // fetch latest if no version is specified
+      // fetch latest if no version is specified
+      mandrelHome = await setUpMandrelLatest(javaVersion)
+      break
     case 'latest':
       mandrelHome = await setUpMandrelLatest(javaVersion)
       break

src/msvc.ts

@@ -1,5 +1,4 @@
 import * as core from '@actions/core'
-import * as semver from 'semver'
 import {execSync} from 'child_process'
 import {existsSync} from 'fs'
 import {VERSION_DEV} from './constants'

tsconfig.base.json

@@ -2,7 +2,7 @@
   "$schema": "https://json.schemastore.org/tsconfig",
   "compilerOptions": {
     "allowSyntheticDefaultImports": true,
-    "declaration": true,
+    "declaration": false,
     "declarationMap": false,
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,