Golang test.Diff函数代码示例

func TestLatestMapEncoding(t *testing.T) {
	now := time.Now()
	want := EmptyLatestMap.
		Set("foo", now, "bar").
		Set("bar", now, "baz")

	{
		gobs, err := want.GobEncode()
		if err != nil {
			t.Fatal(err)
		}
		have := EmptyLatestMap
		have.GobDecode(gobs)
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}

	{
		json, err := want.MarshalJSON()
		if err != nil {
			t.Fatal(err)
		}
		have := EmptyLatestMap
		have.UnmarshalJSON(json)
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}
}

func TestEdgeMetadatasEncoding(t *testing.T) {
	want := EmptyEdgeMetadatas.
		Add("foo", EdgeMetadata{
			EgressPacketCount: newu64(1),
			MaxConnCountTCP:   newu64(2),
		}).
		Add("bar", EdgeMetadata{
			EgressPacketCount: newu64(3),
			MaxConnCountTCP:   newu64(5),
		})

	{
		gobs, err := want.GobEncode()
		if err != nil {
			t.Fatal(err)
		}
		have := EmptyEdgeMetadatas
		have.GobDecode(gobs)
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}

	{
		json, err := want.MarshalJSON()
		if err != nil {
			t.Fatal(err)
		}
		have := EmptyEdgeMetadatas
		have.UnmarshalJSON(json)
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}
}

func TestFilterUnconnectedPesudoNodes(t *testing.T) {
	// Test pseudo nodes that are made unconnected by filtering
	// are also removed.
	{
		nodes := render.RenderableNodes{
			"foo": {ID: "foo", Node: report.MakeNode().WithAdjacent("bar")},
			"bar": {ID: "bar", Node: report.MakeNode().WithAdjacent("baz")},
			"baz": {ID: "baz", Node: report.MakeNode(), Pseudo: true},
		}
		renderer := render.Filter{
			FilterFunc: func(node render.RenderableNode) bool {
				return true
			},
			Renderer: mockRenderer{RenderableNodes: nodes},
		}
		want := nodes.Prune()
		have := renderer.Render(report.MakeReport()).Prune()
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}
	{
		renderer := render.Filter{
			FilterFunc: func(node render.RenderableNode) bool {
				return node.ID != "bar"
			},
			Renderer: mockRenderer{RenderableNodes: render.RenderableNodes{
				"foo": {ID: "foo", Node: report.MakeNode().WithAdjacent("bar")},
				"bar": {ID: "bar", Node: report.MakeNode().WithAdjacent("baz")},
				"baz": {ID: "baz", Node: report.MakeNode(), Pseudo: true},
			}},
		}
		want := render.RenderableNodes{
			"foo": {ID: "foo", Node: report.MakeNode()},
		}
		have := renderer.Render(report.MakeReport()).Prune()
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}
	{
		renderer := render.Filter{
			FilterFunc: func(node render.RenderableNode) bool {
				return node.ID != "bar"
			},
			Renderer: mockRenderer{RenderableNodes: render.RenderableNodes{
				"foo": {ID: "foo", Node: report.MakeNode()},
				"bar": {ID: "bar", Node: report.MakeNode().WithAdjacent("foo")},
				"baz": {ID: "baz", Node: report.MakeNode().WithAdjacent("bar"), Pseudo: true},
			}},
		}
		want := render.RenderableNodes{
			"foo": {ID: "foo", Node: report.MakeNode()},
		}
		have := renderer.Render(report.MakeReport()).Prune()
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}
}

func TestCollector(t *testing.T) {
	window := time.Millisecond
	c := xfer.NewCollector(window)

	r1 := report.MakeReport()
	r1.Endpoint.NodeMetadatas["foo"] = report.MakeNodeMetadata()

	r2 := report.MakeReport()
	r2.Endpoint.NodeMetadatas["bar"] = report.MakeNodeMetadata()

	if want, have := report.MakeReport(), c.Report(); !reflect.DeepEqual(want, have) {
		t.Error(test.Diff(want, have))
	}

	c.Add(r1)
	if want, have := r1, c.Report(); !reflect.DeepEqual(want, have) {
		t.Error(test.Diff(want, have))
	}

	c.Add(r2)

	merged := report.MakeReport()
	merged = merged.Merge(r1)
	merged = merged.Merge(r2)
	if want, have := merged, c.Report(); !reflect.DeepEqual(want, have) {
		t.Error(test.Diff(want, have))
	}
}

func TestCountersEncoding(t *testing.T) {
	want := EmptyCounters.
		Add("foo", 1).
		Add("bar", 2)

	{
		gobs, err := want.GobEncode()
		if err != nil {
			t.Fatal(err)
		}
		have := EmptyCounters
		have.GobDecode(gobs)
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}

	{
		json, err := want.MarshalJSON()
		if err != nil {
			t.Fatal(err)
		}
		have := EmptyCounters
		have.UnmarshalJSON(json)
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}
}

func TestWeaveTaggerOverlayTopology(t *testing.T) {
	oldExecCmd := exec.Command
	defer func() { exec.Command = oldExecCmd }()
	exec.Command = func(name string, args ...string) exec.Cmd {
		return testExec.NewMockCmdString(fmt.Sprintf("%s %s %s/24\n", mockContainerID, mockContainerMAC, mockContainerIP))
	}

	s := httptest.NewServer(http.HandlerFunc(mockWeaveRouter))
	defer s.Close()

	w := overlay.NewWeave(mockHostID, s.URL)
	defer w.Stop()
	w.Tick()

	{
		have, err := w.Report()
		if err != nil {
			t.Fatal(err)
		}
		if want, have := report.MakeTopology().AddNode(
			report.MakeOverlayNodeID(mockWeavePeerName),
			report.MakeNodeWith(map[string]string{
				overlay.WeavePeerName:     mockWeavePeerName,
				overlay.WeavePeerNickName: mockWeavePeerNickName,
			}),
		), have.Overlay; !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}

	{
		nodeID := report.MakeContainerNodeID(mockHostID, mockContainerID)
		want := report.Report{
			Container: report.MakeTopology().AddNode(nodeID, report.MakeNodeWith(map[string]string{
				docker.ContainerID:       mockContainerID,
				overlay.WeaveDNSHostname: mockHostname,
				overlay.WeaveMACAddress:  mockContainerMAC,
			}).WithSets(report.Sets{
				docker.ContainerIPs:           report.MakeStringSet(mockContainerIP),
				docker.ContainerIPsWithScopes: report.MakeStringSet(mockContainerIPWithScope),
			})),
		}
		have, err := w.Tag(report.Report{
			Container: report.MakeTopology().AddNode(nodeID, report.MakeNodeWith(map[string]string{
				docker.ContainerID: mockContainerID,
			})),
		})
		if err != nil {
			t.Fatal(err)
		}
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}
}

func TestMerge(t *testing.T) {
	var (
		hostID = "xyz"
		src    = newMockSource([]byte{}, nil)
		on     = time.Millisecond
		off    = time.Millisecond
		rpt    = report.MakeReport()
		p      = sniff.Packet{
			SrcIP:     "1.0.0.0",
			SrcPort:   "1000",
			DstIP:     "2.0.0.0",
			DstPort:   "2000",
			Network:   512,
			Transport: 256,
		}

		_, ipnet, _ = net.ParseCIDR(p.SrcIP + "/24") // ;)
		localNets   = report.Networks([]*net.IPNet{ipnet})
	)
	sniff.New(hostID, localNets, src, on, off).Merge(p, &rpt)

	var (
		srcEndpointNodeID = report.MakeEndpointNodeID(hostID, p.SrcIP, p.SrcPort)
		dstEndpointNodeID = report.MakeEndpointNodeID(hostID, p.DstIP, p.DstPort)
	)
	if want, have := (report.Topology{
		Nodes: report.Nodes{
			srcEndpointNodeID: report.MakeNode().WithEdge(dstEndpointNodeID, report.EdgeMetadata{
				EgressPacketCount: newu64(1),
				EgressByteCount:   newu64(256),
			}),
			dstEndpointNodeID: report.MakeNode(),
		},
	}), rpt.Endpoint; !reflect.DeepEqual(want, have) {
		t.Errorf("%s", test.Diff(want, have))
	}

	var (
		srcAddressNodeID = report.MakeAddressNodeID(hostID, p.SrcIP)
		dstAddressNodeID = report.MakeAddressNodeID(hostID, p.DstIP)
	)
	if want, have := (report.Topology{
		Nodes: report.Nodes{
			srcAddressNodeID: report.MakeNode().WithEdge(dstAddressNodeID, report.EdgeMetadata{
				EgressPacketCount: newu64(1),
				EgressByteCount:   newu64(512),
			}),
			dstAddressNodeID: report.MakeNode(),
		},
	}), rpt.Address; !reflect.DeepEqual(want, have) {
		t.Errorf("%s", test.Diff(want, have))
	}
}

func TestMetricCopy(t *testing.T) {
	want := report.MakeMetric()
	have := want.Copy()
	if !reflect.DeepEqual(want, have) {
		t.Errorf("diff: %s", test.Diff(want, have))
	}

	want = report.MakeMetric().Add(time.Now(), 1)
	have = want.Copy()
	if !reflect.DeepEqual(want, have) {
		t.Errorf("diff: %s", test.Diff(want, have))
	}
}

func TestMakeRenderableNodes(t *testing.T) {

	var (
		newu64     = func(value uint64) *uint64 { return &value }
		srcNodeID  = "srcNode"
		dstNode1ID = "dstNode1"
		dstNode2ID = "dstNode2"
		srcNode    = report.MakeNode().
				WithEdge(dstNode1ID, report.EdgeMetadata{EgressPacketCount: newu64(100), EgressByteCount: newu64(1000)}).
				WithEdge(dstNode2ID, report.EdgeMetadata{EgressPacketCount: newu64(200), EgressByteCount: newu64(2000)})
		dstNode1 = report.MakeNode()
		dstNode2 = report.MakeNode()
		topology = report.MakeTopology().
				AddNode(srcNodeID, srcNode).
				AddNode(dstNode1ID, dstNode1).
				AddNode(dstNode2ID, dstNode2)
	)

	result := render.MakeRenderableNodes(topology)
	mustLookup := func(id string) render.RenderableNode {
		node, ok := result[id]
		if !ok {
			t.Fatalf("Expected result to contain node: %q, got: %v", id, result)
		}
		return node
	}

	// Source nodes should have the flattened edge metadata
	{
		have := mustLookup(srcNodeID).EdgeMetadata
		want := report.EdgeMetadata{EgressPacketCount: newu64(300), EgressByteCount: newu64(3000)}
		if !reflect.DeepEqual(want, have) {
			t.Errorf(test.Diff(want, have))
		}
	}

	// Result destination nodes should have the reverse of the source nodes
	{
		have := mustLookup(dstNode1ID).EdgeMetadata
		want := report.EdgeMetadata{IngressPacketCount: newu64(100), IngressByteCount: newu64(1000)}
		if !reflect.DeepEqual(want, have) {
			t.Errorf(test.Diff(want, have))
		}

		have = mustLookup(dstNode2ID).EdgeMetadata
		want = report.EdgeMetadata{IngressPacketCount: newu64(200), IngressByteCount: newu64(2000)}
		if !reflect.DeepEqual(want, have) {
			t.Errorf(test.Diff(want, have))
		}
	}
}

func TestEdgeMetadataFlatten(t *testing.T) {
	// Test two EdgeMetadatas flatten to the correct values
	{
		have := (EdgeMetadata{
			EgressPacketCount: newu64(1),
			MaxConnCountTCP:   newu64(2),
		}).Flatten(EdgeMetadata{
			EgressPacketCount: newu64(4),
			EgressByteCount:   newu64(8),
			MaxConnCountTCP:   newu64(16),
		})
		want := EdgeMetadata{
			EgressPacketCount: newu64(1 + 4),
			EgressByteCount:   newu64(8),
			MaxConnCountTCP:   newu64(2 + 16), // flatten should sum MaxConnCountTCP
		}
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}

	// Test an EdgeMetadatas flatten to the correct value (should
	// just sum)
	{
		have := EmptyEdgeMetadatas.
			Add("foo", EdgeMetadata{
				EgressPacketCount: newu64(1),
				MaxConnCountTCP:   newu64(2),
			}).
			Add("bar", EdgeMetadata{
				EgressPacketCount: newu64(3),
				MaxConnCountTCP:   newu64(5),
			}).Flatten()
		want := EdgeMetadata{
			EgressPacketCount: newu64(1 + 3),
			MaxConnCountTCP:   newu64(2 + 5),
		}
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}

	{
		// Should not panic on nil
		have := EdgeMetadatas{}.Flatten()
		want := EdgeMetadata{}
		if !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}
}

func TestCountersDeepEquals(t *testing.T) {
	want := EmptyCounters.
		Add("foo", 3)
	have := EmptyCounters.
		Add("foo", 3)
	if !reflect.DeepEqual(want, have) {
		t.Errorf(test.Diff(want, have))
	}
	notequal := EmptyCounters.
		Add("foo", 4)
	if reflect.DeepEqual(want, notequal) {
		t.Errorf(test.Diff(want, have))
	}
}

func TestLatestMapDeepEquals(t *testing.T) {
	now := time.Now()
	want := EmptyLatestMap.
		Set("foo", now, "Bar")
	have := EmptyLatestMap.
		Set("foo", now, "Bar")
	if !reflect.DeepEqual(want, have) {
		t.Errorf(test.Diff(want, have))
	}
	notequal := EmptyLatestMap.
		Set("foo", now, "Baz")
	if reflect.DeepEqual(want, notequal) {
		t.Errorf(test.Diff(want, have))
	}
}

func TestWeaveTaggerOverlayTopology(t *testing.T) {
	s := httptest.NewServer(http.HandlerFunc(mockWeaveRouter))
	defer s.Close()

	w, err := overlay.NewWeave(s.URL)
	if err != nil {
		t.Fatal(err)
	}

	have, err := w.Report()
	if err != nil {
		t.Fatal(err)
	}
	if want, have := (report.Topology{
		Adjacency:     report.Adjacency{},
		EdgeMetadatas: report.EdgeMetadatas{},
		NodeMetadatas: report.NodeMetadatas{
			report.MakeOverlayNodeID(mockWeavePeerName): report.NewNodeMetadata(map[string]string{
				overlay.WeavePeerName:     mockWeavePeerName,
				overlay.WeavePeerNickName: mockWeavePeerNickName,
			}),
		},
	}), have.Overlay; !reflect.DeepEqual(want, have) {
		t.Error(test.Diff(want, have))
	}
}

func TestAPITopologyApplications(t *testing.T) {
	ts := httptest.NewServer(Router(StaticReport{}))
	defer ts.Close()
	is404(t, ts, "/api/topology/applications/foobar")
	{
		body := getRawJSON(t, ts, "/api/topology/applications/"+expected.ServerProcessID)
		var node APINode
		if err := json.Unmarshal(body, &node); err != nil {
			t.Fatal(err)
		}
		equals(t, expected.ServerProcessID, node.Node.ID)
		equals(t, "apache", node.Node.LabelMajor)
		equals(t, fmt.Sprintf("%s (server:%s)", test.ServerHostID, test.ServerPID), node.Node.LabelMinor)
		equals(t, false, node.Node.Pseudo)
		// Let's not unit-test the specific content of the detail tables
	}
	{
		body := getRawJSON(t, ts, fmt.Sprintf("/api/topology/applications/%s/%s", expected.ClientProcess1ID, expected.ServerProcessID))
		var edge APIEdge
		if err := json.Unmarshal(body, &edge); err != nil {
			t.Fatalf("JSON parse error: %s", err)
		}
		if want, have := (report.EdgeMetadata{
			EgressPacketCount: newu64(10),
			EgressByteCount:   newu64(100),
		}), edge.Metadata; !reflect.DeepEqual(want, have) {
			t.Error(test.Diff(want, have))
		}
	}
}

func TestHostRenderer(t *testing.T) {
	have := render.HostRenderer.Render(test.Report).Prune()
	want := expected.RenderedHosts
	if !reflect.DeepEqual(want, have) {
		t.Error(test.Diff(want, have))
	}
}