diff --git a/cmd/manager/deployments_test.go b/cmd/manager/deployments_test.go
index 74bfb5cc3..4243a39f0 100644
--- a/cmd/manager/deployments_test.go
+++ b/cmd/manager/deployments_test.go
@@ -76,3 +76,31 @@ func TestCreateDeployments(t *testing.T) {
 		t.Errorf("Expected status %d, got %d", http.StatusCreated, res.StatusCode)
 	}
 }
+
+func TestListDeployments(t *testing.T) {
+	c := stubContext()
+	s := httpHarness(c, "GET /deployments", listDeploymentsHandlerFunc)
+	defer s.Close()
+
+	man := c.Manager.(*mockManager)
+	man.deployments = []*common.Deployment{
+		{Name: "one", State: &common.DeploymentState{Status: common.CreatedStatus}},
+		{Name: "two", State: &common.DeploymentState{Status: common.DeployedStatus}},
+	}
+
+	res, err := http.Get(s.URL + "/deployments")
+	if err != nil {
+		t.Errorf("Failed GET: %s", err)
+	} else if res.StatusCode != http.StatusOK {
+		t.Errorf("Unexpected status code: %d", res.StatusCode)
+	}
+
+	var out []string
+	if err := json.NewDecoder(res.Body).Decode(&out); err != nil {
+		t.Errorf("Failed to parse results: %s", err)
+		return
+	}
+	if len(out) != 2 {
+		t.Errorf("Expected 2 names, got %d", len(out))
+	}
+}
diff --git a/cmd/manager/testutil.go b/cmd/manager/testutil.go
index 8d8923b4b..86db0e4f3 100644
--- a/cmd/manager/testutil.go
+++ b/cmd/manager/testutil.go
@@ -47,16 +47,28 @@ func httpHarness(c *router.Context, route string, fn router.HandlerFunc) *httpte
 func stubContext() *router.Context {
 	return &router.Context{
 		Config:             &router.Config{},
-		Manager:            &mockManager{},
+		Manager:            newMockManager(),
 		CredentialProvider: repo.NewInmemCredentialProvider(),
 		Encoder:            httputil.DefaultEncoder,
 	}
 }
 
-type mockManager struct{}
+func newMockManager() *mockManager {
+	return &mockManager{
+		deployments: []*common.Deployment{},
+	}
+}
+
+type mockManager struct {
+	deployments []*common.Deployment
+}
 
 func (m *mockManager) ListDeployments() ([]common.Deployment, error) {
-	return []common.Deployment{}, nil
+	d := make([]common.Deployment, len(m.deployments))
+	for i, dd := range m.deployments {
+		d[i] = *dd
+	}
+	return d, nil
 }
 
 func (m *mockManager) GetDeployment(name string) (*common.Deployment, error) {