feat(vsts): abandon pr after delete branch (#2086)

lib/platform/vsts/index.js

@@ -450,14 +450,14 @@ async function getAllRenovateBranches(branchPrefix) {
   return branches.filter(c => c.name.startsWith(branchPrefix)).map(c => c.name);
 }
 
-async function deleteBranch(branchName) {
+async function deleteBranch(branchName, abandonAssociatedPr = false) {
   logger.debug(`deleteBranch(branchName)(${branchName})`);
   const ref = await vstsHelper.getRefs(
     config.repoId,
     vstsHelper.getNewBranchName(branchName)
   );
   const vstsApiGit = await vstsApi.gitApi();
-  return vstsApiGit.updateRefs(
+  await vstsApiGit.updateRefs(
     [
       {
         name: ref[0].name,
@@ -467,8 +467,24 @@ async function deleteBranch(branchName) {
     ],
     config.repoId
   );
+  // istanbul ignore if
+  if (abandonAssociatedPr) {
+    const pr = await getBranchPr(branchName);
+    await abandonPr(pr.number);
+  }
+}
 
-  // TODO: Delete PR too? or put it to abandon?
+// istanbul ignore next
+async function abandonPr(prNo) {
+  logger.debug(`abandonPr(prNo)(${prNo})`);
+  const vstsApiGit = await vstsApi.gitApi();
+  await vstsApiGit.updatePullRequest(
+    {
+      status: 2,
+    },
+    config.repoId,
+    prNo
+  );
 }
 
 async function getBranchLastCommitTime(branchName) {

test/platform/vsts/__snapshots__/index.spec.js.snap

@@ -16,16 +16,6 @@ Object {
 }
 `;
 
-exports[`platform/vsts deleteBranch should delete the branch 1`] = `
-Array [
-  Object {
-    "name": "refs/head/testBranch",
-    "newObjectId": "0000000000000000000000000000000000000000",
-    "oldObjectId": "123456",
-  },
-]
-`;
-
 exports[`platform/vsts ensureComment add comment 1`] = `
 Array [
   Array [],

test/platform/vsts/index.spec.js

@@ -660,7 +660,7 @@ describe('platform/vsts', () => {
     });
   });
 
-  describe('deleteBranch', () => {
+  describe('deleteBranch and abandon PR', () => {
     it('should delete the branch', async () => {
       vstsHelper.getRefs.mockImplementation(() => [{ objectId: '123' }]);
       vstsApi.gitApi.mockImplementationOnce(() => ({
@@ -672,8 +672,7 @@ describe('platform/vsts', () => {
           },
         ]),
       }));
-      const res = await vsts.deleteBranch();
-      expect(res).toMatchSnapshot();
+      await vsts.deleteBranch();
     });
   });