Merge pull request #106 from rizzatti/throws_on_failed_run

Add support for guard halt_on_fail

lib/guard/minitest.rb

@@ -32,11 +32,11 @@ def reload
     end
 
     def run_all
-      runner.run_all
+      throw_on_failed_tests { runner.run_all }
     end
 
     def run_on_modifications(paths = [])
-      runner.run_on_modifications(paths)
+      throw_on_failed_tests { runner.run_on_modifications(paths) }
     end
 
     def run_on_additions(paths)
@@ -47,5 +47,11 @@ def run_on_removals(paths)
       runner.run_on_removals(paths)
     end
 
+    private
+
+    def throw_on_failed_tests
+      throw :task_has_failed unless yield
+    end
+
   end
 end

spec/lib/guard/minitest_spec.rb

@@ -42,8 +42,7 @@
 
   describe 'run_on_modifications' do
     it 'is run through runner' do
-      runner.any_instance.expects(:run_on_modifications)
-
+      runner.any_instance.expects(:run_on_modifications => true)
       guard.run_on_modifications
     end
   end
@@ -68,4 +67,17 @@
     end
   end
 
+  describe 'halting and throwing on test failure' do
+    it 'throws on failed test run' do
+      stubbed_runner = stub
+      stubbed_runner.stubs(:run).returns(false)
+      stubbed_runner.expects(:run_all)
+      stubbed_runner.expects(:run_on_modifications)
+
+      guard.runner = stubbed_runner
+
+      proc { guard.run_all }.must_throw :task_has_failed
+      proc { guard.run_on_modifications }.must_throw :task_has_failed
+    end
+  end
 end