complete test suite conversions; simplify fn name

src/config.ts

@@ -5,7 +5,7 @@ import * as core from '@actions/core'
 import * as z from 'zod'
 import {ConfigurationOptions, ConfigurationOptionsSchema} from './schemas'
 import {octokitClient} from './utils'
-import {isValidSPDX} from './spdx'
+import {isValid} from './spdx'
 
 type ConfigurationOptionsPartial = Partial<ConfigurationOptions>
 
@@ -114,10 +114,12 @@ function validateLicenses(
     return
   }
 
-  const invalid_licenses = licenses.filter(license => !isValidSPDX(license))
+  const invalid_licenses = licenses.filter(license => !isValid(license))
 
   if (invalid_licenses.length > 0) {
-    throw new Error(`Invalid license(s) in ${key}: ${invalid_licenses}`)
+    throw new Error(
+      `Invalid license(s) in ${key}: ${invalid_licenses.join(', ')}`
+    )
   }
 }
 

src/licenses.ts

@@ -2,7 +2,7 @@ import spdxSatisfies from 'spdx-satisfies'
 import {Change, Changes} from './schemas'
 import {octokitClient} from './utils'
 import {parsePURL} from './purl'
-import {isValidSPDX} from './spdx'
+import {isValid} from './spdx'
 
 /**
  * Loops through a list of changes, filtering and returning the
@@ -166,7 +166,7 @@ const setGHLicenses = async (changes: Change[]): Promise<Change[]> => {
 // Currently Dependency Graph licenses are truncated to 255 characters
 // This possibly makes them invalid spdx ids
 const truncatedDGLicense = (license: string): boolean =>
-  license.length === 255 && !isValidSPDX(license)
+  license.length === 255 && !isValid(license)
 
 async function groupChanges(
   changes: Changes

src/spdx.ts

@@ -9,7 +9,7 @@ export function satisfies(
 }
 
 // can be a single license or an SPDX expression
-export function isValidSPDX(spdxExpr: string): boolean {
+export function isValid(spdxExpr: string): boolean {
   try {
     parse(spdxExpr)
     return true