feat(test_downstream_projects): support testing of branches. Do not revert changes after running tests to improve debugging of failed runs

Author: christopherthielen

publish_yalc_package.js

@@ -45,6 +45,7 @@ function publishYalcPackage(installTargetDir, installSource, flags) {
   if (isRemoteSource) {
     process.chdir(installTargetDir);
     util._exec('git fetch origin');
+    util._exec(`git checkout ${branch}`);
     util._exec(`git reset --hard ${branch}`);
     util._exec('git clean --force -d');
   } else {

test_downstream_projects.js

@@ -141,13 +141,6 @@ function runTests() {
   util._exec(`npm test`);
 }
 
-function revertLocalChanges(source) {
-  const isRemoteSource = source[0] !== '.';
-  const ref = isRemoteSource ? 'origin/master' : 'master';
-  util._exec(`git reset --hard ${ref}`);
-  util._exec('git clean --force -d');
-}
-
 function fetchDownstreamProjects(downstreamConfig, prefix, downstreamTreeNode) {
   prefix = prefix || "";
 
@@ -236,9 +229,6 @@ function runDownstreamTests(key, upstreamPackages, downstreamTreeNode, successLo
   successLog.push(name);
   runningTestsFor = undefined;
 
-  console.log(`           ===> '${name}': Reverting working copy <===`);
-  revertLocalChanges(downstreamTreeNode.installSource);
-
   foldEnd();
 
   const downstreamChildren = Object.keys(downstreamTreeNode.children || {});