Add tests for generateRegistries with an existing CODEQL_REGISTRIES…

…_AUTH

src/config-utils.test.ts

@@ -2300,7 +2300,7 @@ test("downloadPacks-with-registries", async (t) => {
   // associated env vars
   return await util.withTmpDir(async (tmpDir) => {
     process.env.GITHUB_TOKEN = "not-a-token";
-    process.env.CODEQL_REGISTRIES_AUTH = "not-a-registries-auth";
+    process.env.CODEQL_REGISTRIES_AUTH = undefined;
     const logger = getRunnerLogger(true);
 
     const registriesInput = yaml.dump([
@@ -2382,7 +2382,7 @@ test("downloadPacks-with-registries", async (t) => {
 
     // Verify that the env vars were unset.
     t.deepEqual(process.env.GITHUB_TOKEN, "not-a-token");
-    t.deepEqual(process.env.CODEQL_REGISTRIES_AUTH, "not-a-registries-auth");
+    t.deepEqual(process.env.CODEQL_REGISTRIES_AUTH, undefined);
   });
 });
 
@@ -2521,6 +2521,34 @@ test("no generateRegistries when registries is undefined", async (t) => {
   });
 });
 
+test("generateRegistries prefers original CODEQL_REGISTRIES_AUTH", async (t) => {
+  return await util.withTmpDir(async (tmpDir) => {
+    process.env.CODEQL_REGISTRIES_AUTH = "original";
+    const registriesInput = yaml.dump([
+      {
+        url: "http://ghcr.io",
+        packages: ["codeql/*", "dsp-testing/*"],
+        token: "not-a-token",
+      },
+    ]);
+    const codeQL = setCodeQL({
+      // Accepted CLI versions are 2.10.4 or higher
+      getVersion: () => Promise.resolve(CODEQL_VERSION_GHES_PACK_DOWNLOAD),
+    });
+    const logger = getRunnerLogger(true);
+    const { registriesAuthTokens, qlconfigFile } =
+      await configUtils.generateRegistries(
+        registriesInput,
+        codeQL,
+        tmpDir,
+        logger
+      );
+
+    t.is(registriesAuthTokens, "original");
+    t.is(qlconfigFile, `${tmpDir}/qlconfig.yml`);
+  });
+});
+
 // getLanguages
 
 const mockRepositoryNwo = parseRepositoryNwo("owner/repo");

src/config-utils.ts

@@ -1993,7 +1993,7 @@ export async function generateRegistries(
   return {
     registriesAuthTokens:
       // if the user has explicitly set the CODEQL_REGISTRIES_AUTH env var then use that
-      process.env["CODEQL_REGISTRIES_AUTH"] ?? registriesAuthTokens,
+      process.env.CODEQL_REGISTRIES_AUTH ?? registriesAuthTokens,
     qlconfigFile,
   };
 }