another test

__tests__/setup-go.test.ts

@@ -108,6 +108,38 @@ describe('setup-go', () => {
     );
   });
 
+  it('reports a failed download', async () => {
+    let errMsg = 'unhandled download message';
+    platSpy.mockImplementation(() => 'linux');
+    archSpy.mockImplementation(() => 'x64');
+
+    inSpy.mockImplementation(() => '1.13.1');
+    findSpy.mockImplementation(() => '');
+    dlSpy.mockImplementation(() => {
+      throw new Error(errMsg);
+    });
+    await run();
+
+    expect(cnSpy).toHaveBeenCalledWith(
+      `::error::Failed to download version 1.13.1: Error: ${errMsg}${os.EOL}`
+    );
+  });
+
+  it('reports empty query results', async () => {
+    let errMsg = 'unhandled download message';
+    platSpy.mockImplementation(() => 'linux');
+    archSpy.mockImplementation(() => 'x64');
+
+    inSpy.mockImplementation(() => '1.13.1');
+    findSpy.mockImplementation(() => '');
+    getSpy.mockImplementation(() => null);
+    await run();
+
+    expect(cnSpy).toHaveBeenCalledWith(
+      `::error::Failed to download version 1.13.1: Error: golang download url did not return results${os.EOL}`
+    );
+  });
+
   it('can query versions', async () => {
     let versions: im.IGoVersion[] | null = await im.getVersions(
       'https://non.existant.com/path'

dist/index.js

@@ -4617,7 +4617,7 @@ function findMatch(versionSpec, stable) {
         const dlUrl = 'https://golang.org/dl/?mode=json&include=all';
         let candidates = yield module.exports.getVersions(dlUrl);
         if (!candidates) {
-            throw new Error(`golang download url did not return results: ${dlUrl}`);
+            throw new Error(`golang download url did not return results`);
         }
         let goFile;
         for (let i = 0; i < candidates.length; i++) {
@@ -4656,8 +4656,7 @@ function getVersions(dlUrl) {
     return __awaiter(this, void 0, void 0, function* () {
         // this returns versions descending so latest is first
         let http = new httpm.HttpClient('setup-go');
-        let candidates = (yield http.getJson(dlUrl)).result;
+        return (yield http.getJson(dlUrl)).result;
-        return candidates;
     });
 }
 exports.getVersions = getVersions;

src/installer.ts

@@ -68,7 +68,7 @@ export async function findMatch(
   const dlUrl: string = 'https://golang.org/dl/?mode=json&include=all';
   let candidates: IGoVersion[] | null = await module.exports.getVersions(dlUrl);
   if (!candidates) {
-    throw new Error(`golang download url did not return results: ${dlUrl}`);
+    throw new Error(`golang download url did not return results`);
   }
 
   let goFile: IGoVersionFile | undefined;
@@ -111,9 +111,5 @@ export async function findMatch(
 export async function getVersions(dlUrl: string): Promise<IGoVersion[] | null> {
   // this returns versions descending so latest is first
   let http: httpm.HttpClient = new httpm.HttpClient('setup-go');
-  let candidates: IGoVersion[] | null = (await http.getJson<IGoVersion[]>(
+  return (await http.getJson<IGoVersion[]>(dlUrl)).result;
-    dlUrl
-  )).result;
-
-  return candidates;
 }