diff --git a/__tests__/base.js b/__tests__/base.js
index 76a6ec7f..ba3cf434 100644
--- a/__tests__/base.js
+++ b/__tests__/base.js
@@ -1,3 +1,5 @@
+var Q = require('q');
+
 var HeadlessGit = require('../src/js/git/headless').HeadlessGit;
 var TreeCompare = require('../src/js/graph/treeCompare.js');
 
@@ -95,6 +97,27 @@ var expectLevelSolved = function(levelBlob) {
   expectLevelAsync(headless, levelBlob);
 };
 
+var runCommand = function(command, resultHandler) {
+  var headless = new HeadlessGit();
+  var deferred = Q.defer();
+  var msg = null;
+
+  deferred.promise.then(function(commands) {
+    msg = commands[commands.length - 1].get('error').get('msg');
+  });
+
+  runs(function() {
+    headless.sendCommand(command, deferred);
+  });
+  waitsFor(function() {
+    if(null == msg) {
+      return false;
+    }
+    resultHandler(msg);
+    return true;
+  }, 'commands should be finished', 500);
+};
+
 var TIME = 150;
 // useful for throwing garbage and then expecting one commit
 var ONE_COMMIT_TREE = '{"branches":{"master":{"target":"C2","id":"master"}},"commits":{"C0":{"parents":[],"id":"C0","rootCommit":true},"C1":{"parents":["C0"],"id":"C1"},"C2":{"parents":["C1"],"id":"C2"}},"HEAD":{"target":"master","id":"HEAD"}}';
@@ -105,6 +128,7 @@ module.exports = {
   TIME: TIME,
   expectTreeAsync: expectTreeAsync,
   expectLevelSolved: expectLevelSolved,
-  ONE_COMMIT_TREE: ONE_COMMIT_TREE
+  ONE_COMMIT_TREE: ONE_COMMIT_TREE,
+  runCommand: runCommand
 };
 
diff --git a/__tests__/git.spec.js b/__tests__/git.spec.js
index 656d197e..810f4e9f 100644
--- a/__tests__/git.spec.js
+++ b/__tests__/git.spec.js
@@ -1,5 +1,6 @@
 var base = require('./base');
 var expectTreeAsync = base.expectTreeAsync;
+var runCommand = base.runCommand;
 
 describe('Git', function() {
   it('Commits', function() {
@@ -275,4 +276,43 @@ describe('Git', function() {
 		);
   });
 
+  describe('Log supports', function() {
+    var SETUP = 'git co -b left C0; gc; git merge master; git co -b right C0; gc; git merge master; git co -b all left; git merge right; ';
+
+    it('implied HEAD', function() {
+      runCommand(SETUP + '; git co right; git log', function(commandMsg) {
+        expect(commandMsg).toContain('Commit: C0\n');
+        expect(commandMsg).toContain('Commit: C1\n');
+        expect(commandMsg).not.toContain('Commit: C2\n');
+        expect(commandMsg).not.toContain('Commit: C3\n');
+        expect(commandMsg).toContain('Commit: C4\n');
+        expect(commandMsg).toContain('Commit: C5\n');
+        expect(commandMsg).not.toContain('Commit: C6\n');
+      });
+    });
+
+    it('single included revision', function() {
+      runCommand(SETUP + 'git log right', function(commandMsg) {
+        expect(commandMsg).toContain('Commit: C0\n');
+        expect(commandMsg).toContain('Commit: C1\n');
+        expect(commandMsg).not.toContain('Commit: C2\n');
+        expect(commandMsg).not.toContain('Commit: C3\n');
+        expect(commandMsg).toContain('Commit: C4\n');
+        expect(commandMsg).toContain('Commit: C5\n');
+        expect(commandMsg).not.toContain('Commit: C6\n');
+      });
+    });
+
+    it('single excluded revision', function() {
+      runCommand(SETUP + 'git log all ^right', function(commandMsg) {
+        expect(commandMsg).not.toContain('Commit: C0\n');
+        expect(commandMsg).not.toContain('Commit: C1\n');
+        expect(commandMsg).toContain('Commit: C2\n');
+        expect(commandMsg).toContain('Commit: C3\n');
+        expect(commandMsg).not.toContain('Commit: C4\n');
+        expect(commandMsg).not.toContain('Commit: C5\n');
+        expect(commandMsg).toContain('Commit: C6\n');
+      });
+    });
+  });
 });
diff --git a/src/js/git/headless.js b/src/js/git/headless.js
index a82081b9..f2b2c0bc 100644
--- a/src/js/git/headless.js
+++ b/src/js/git/headless.js
@@ -109,6 +109,8 @@ HeadlessGit.prototype.sendCommand = function(value, entireCommandPromise) {
   var chain = deferred.promise;
   var startTime = new Date().getTime();
 
+  var commands = [];
+
   util.splitTextCommand(value, function(commandStr) {
     chain = chain.then(function() {
       var commandObj = new Command({
@@ -117,6 +119,7 @@ HeadlessGit.prototype.sendCommand = function(value, entireCommandPromise) {
 
       var thisDeferred = Q.defer();
       this.gitEngine.dispatch(commandObj, thisDeferred);
+      commands.push(commandObj);
       return thisDeferred.promise;
     }.bind(this));
   }, this);
@@ -124,7 +127,7 @@ HeadlessGit.prototype.sendCommand = function(value, entireCommandPromise) {
   chain.then(function() {
     var nowTime = new Date().getTime();
     if (entireCommandPromise) {
-      entireCommandPromise.resolve();
+      entireCommandPromise.resolve(commands);
     }
   });