diff --git a/__tests__/treeCompare.spec.js b/__tests__/treeCompare.spec.js
index 052d8df2..ffa27466 100644
--- a/__tests__/treeCompare.spec.js
+++ b/__tests__/treeCompare.spec.js
@@ -49,6 +49,18 @@ describe('Tree Compare', function() {
     );
   });
 
+  it('compares with considering leftover branches', function() {
+    testMethod(
+      {
+        compareAllBranchesAndEnforceBranchCleanup: true,
+      },
+      '{"branches":{"master":{"target":"C2","id":"master","remoteTrackingBranchID":null},"foo":{"target":"C2","id":"foo","remoteTrackingBranchID":null}},"commits":{"C0":{"parents":[],"id":"C0","rootCommit":true},"C1":{"parents":["C0"],"id":"C1"},"C2":{"parents":["C1"],"id":"C2"}},"tags":{},"HEAD":{"target":"foo","id":"HEAD"}}',
+      {
+        '{"branches":{"master":{"target":"C2","id":"master","remoteTrackingBranchID":null},"foo":{"target":"C2","id":"foo","remoteTrackingBranchID":null},"randoBran":{"target":"C2","id":"randoBran","remoteTrackingBranchID":null}},"commits":{"C0":{"parents":[],"id":"C0","rootCommit":true},"C1":{"parents":["C0"],"id":"C1"},"C2":{"parents":["C1"],"id":"C2"}},"tags":{},"HEAD":{"target":"foo","id":"HEAD"}}': false,
+      },
+    );
+  });
+
   it('deep compares on origin tree', function() {
     testMethod(
       {}, // checked for all methods so this doesn't matter
diff --git a/src/js/graph/treeCompare.js b/src/js/graph/treeCompare.js
index 8652f172..f01cf457 100644
--- a/src/js/graph/treeCompare.js
+++ b/src/js/graph/treeCompare.js
@@ -54,6 +54,10 @@ TreeCompare.dispatchShallow = function(levelBlob, goalTreeString, treeToCompare)
       return TreeCompare.compareBranchWithinTrees(
         treeToCompare, goalTreeString, 'master'
       );
+    case !!levelBlob.compareAllBranchesAndEnforceBranchCleanup:
+      return TreeCompare.compareAllBranchesAndEnforceBranchCleanup(
+        treeToCompare, goalTreeString
+      );
     case !!levelBlob.compareOnlyBranches:
       return TreeCompare.compareAllBranchesWithinTrees(
         treeToCompare, goalTreeString
@@ -88,6 +92,26 @@ TreeCompare.compareAllBranchesWithinTreesAndHEAD = function(treeToCompare, goalT
     this.compareAllTagsWithinTrees(treeToCompare, goalTree);
 };
 
+TreeCompare.compareAllBranchesAndEnforceBranchCleanup = function(treeToCompare, goalTree) {
+  treeToCompare = this.convertTreeSafe(treeToCompare);
+  goalTree = this.convertTreeSafe(goalTree);
+
+  // Unlike compareAllBranchesWithinTrees, here we consider both the branches
+  // in the goalTree and the branches in the treeToCompare. This means that
+  // we enfoce that you clean up any branches that you have locally that
+  // the goal does not have. this is helpful when we want to verify that you
+  // have deleted branch, for instance.
+  var allBranches = Object.assign(
+    {},
+    treeToCompare.branches,
+    goalTree.branches
+  );
+  return Object.keys(allBranches).every(function(branch) {
+    return this.compareBranchWithinTrees(treeToCompare, goalTree, branch);
+  }.bind(this));
+};
+
+
 TreeCompare.compareAllBranchesWithinTrees = function(treeToCompare, goalTree) {
   treeToCompare = this.convertTreeSafe(treeToCompare);
   goalTree = this.convertTreeSafe(goalTree);