test:add container list test

client/container.go

@@ -63,25 +63,6 @@ func (client *APIClient) ContainerRemove(ctx context.Context, name string, force
 	return nil
 }
 
-// ContainerList returns the list of containers.
-func (client *APIClient) ContainerList(ctx context.Context, all bool) ([]*types.Container, error) {
-	q := url.Values{}
-	if all {
-		q.Set("all", "true")
-	}
-
-	resp, err := client.get(ctx, "/containers/json", q, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	containers := []*types.Container{}
-	err = decodeBody(&containers, resp.Body)
-	ensureCloseReader(resp)
-
-	return containers, err
-}
-
 // ContainerAttach attach a container
 func (client *APIClient) ContainerAttach(ctx context.Context, name string, stdin bool) (net.Conn, *bufio.Reader, error) {
 	q := url.Values{}

client/container_list.go

@@ -0,0 +1,27 @@
+package client
+
+import (
+	"context"
+	"net/url"
+
+	"github.com/alibaba/pouch/apis/types"
+)
+
+// ContainerList returns the list of containers.
+func (client *APIClient) ContainerList(ctx context.Context, all bool) ([]*types.Container, error) {
+	q := url.Values{}
+	if all {
+		q.Set("all", "true")
+	}
+
+	resp, err := client.get(ctx, "/containers/json", q, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	containers := []*types.Container{}
+	err = decodeBody(&containers, resp.Body)
+	ensureCloseReader(resp)
+
+	return containers, err
+}

client/container_list_test.go

@@ -0,0 +1,67 @@
+package client
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"strings"
+	"testing"
+
+	"github.com/alibaba/pouch/apis/types"
+)
+
+func TestContainerListError(t *testing.T) {
+	client := &APIClient{
+		HTTPCli: newMockClient(errorMockResponse(http.StatusInternalServerError, "Server error")),
+	}
+	_, err := client.ContainerList(context.Background(), true)
+	if err == nil || !strings.Contains(err.Error(), "Server error") {
+		t.Fatalf("expected a Server Error, got %v", err)
+	}
+}
+
+func TestContainerList(t *testing.T) {
+	expectedURL := "/containers/json"
+
+	httpClient := newMockClient(func(req *http.Request) (*http.Response, error) {
+		if !strings.HasPrefix(req.URL.Path, expectedURL) {
+			return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
+		}
+		query := req.URL.Query()
+		all := query.Get("all")
+		if all != "true" {
+			return nil, fmt.Errorf("all not set in URL query properly. Expected '1', got %s", all)
+		}
+		containersJSON := []types.ContainerJSON{
+			{
+				Name:  "container1",
+				Image: "Image1",
+			},
+			{
+				Name:  "container1",
+				Image: "Image1",
+			},
+		}
+		b, err := json.Marshal(containersJSON)
+		if err != nil {
+			return nil, err
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Body:       ioutil.NopCloser(bytes.NewReader([]byte(b))),
+		}, nil
+	})
+	client := &APIClient{
+		HTTPCli: httpClient,
+	}
+	containers, err := client.ContainerList(context.Background(), true)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(containers) != 2 {
+		t.Fatalf("expected 2 containers, got %v", containers)
+	}
+}