From 3c7a454a9de9d9a98c9ee3dae1f4ec2641de2d8d Mon Sep 17 00:00:00 2001
From: Victor Vieux <vieux@docker.com>
Date: Thu, 28 Jan 2016 12:42:42 -0800
Subject: [PATCH] Add test

Signed-off-by: Victor Vieux <vieux@docker.com>
---
 scheduler/scheduler_test.go | 56 +++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 scheduler/scheduler_test.go

diff --git a/scheduler/scheduler_test.go b/scheduler/scheduler_test.go
new file mode 100644
index 0000000000..3032997dcc
--- /dev/null
+++ b/scheduler/scheduler_test.go
@@ -0,0 +1,56 @@
+package scheduler
+
+import (
+	"testing"
+
+	"github.com/docker/swarm/cluster"
+	"github.com/docker/swarm/scheduler/filter"
+	"github.com/docker/swarm/scheduler/node"
+	"github.com/docker/swarm/scheduler/strategy"
+	"github.com/samalba/dockerclient"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSelectNodesForContainer(t *testing.T) {
+	var (
+		s = Scheduler{
+			strategy: &strategy.SpreadPlacementStrategy{},
+			filters:  []filter.Filter{&filter.ConstraintFilter{}},
+		}
+
+		nodes = []*node.Node{
+			{
+				ID:          "node-0-id",
+				Name:        "node-0-name",
+				Addr:        "node-0",
+				TotalMemory: 1 * 1024 * 1024 * 1024,
+				TotalCpus:   1,
+				Labels: map[string]string{
+					"group": "1",
+				},
+			},
+
+			{
+				ID:          "node-1-id",
+				Name:        "node-1-name",
+				Addr:        "node-1",
+				TotalMemory: 1 * 1024 * 1024 * 1024,
+				TotalCpus:   2,
+				Labels: map[string]string{
+					"group": "2",
+				},
+			},
+		}
+
+		config = cluster.BuildContainerConfig(dockerclient.ContainerConfig{
+			Memory:    1024 * 1024 * 1024,
+			CpuShares: 2,
+			Env:       []string{"constraint:group==~1"},
+		})
+	)
+	candidates, err := s.SelectNodesForContainer(nodes, config)
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(candidates))
+	assert.Equal(t, "node-1-id", candidates[0].ID)
+
+}