test:add container get test

Signed-off-by: Dewey-Ding <[email protected]>

Author: Dewey-Ding

client/container.go

@@ -121,20 +121,6 @@ func (client *APIClient) ContainerStartExec(ctx context.Context, execid string,
 	return client.hijack(ctx, "/exec/"+execid+"/start", url.Values{}, config, header)
 }
 
-// ContainerGet returns the detailed information of container.
-func (client *APIClient) ContainerGet(ctx context.Context, name string) (*types.ContainerJSON, error) {
-	resp, err := client.get(ctx, "/containers/"+name+"/json", nil, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	container := types.ContainerJSON{}
-	err = decodeBody(&container, resp.Body)
-	ensureCloseReader(resp)
-
-	return &container, err
-}
-
 // ContainerRestart restarts a running container.
 func (client *APIClient) ContainerRestart(ctx context.Context, name string, timeout string) error {
 	q := url.Values{}

client/container_get.go

@@ -0,0 +1,21 @@
+package client
+
+import (
+	"context"
+
+	"github.com/alibaba/pouch/apis/types"
+)
+
+// ContainerGet returns the detailed information of container.
+func (client *APIClient) ContainerGet(ctx context.Context, name string) (*types.ContainerJSON, error) {
+	resp, err := client.get(ctx, "/containers/"+name+"/json", nil, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	container := types.ContainerJSON{}
+	err = decodeBody(&container, resp.Body)
+	ensureCloseReader(resp)
+
+	return &container, err
+}

client/container_get_test.go

@@ -0,0 +1,52 @@
+package client
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"strings"
+	"testing"
+
+	"github.com/alibaba/pouch/apis/types"
+)
+
+func TestContainerGetError(t *testing.T) {
+	client := &APIClient{
+		HTTPCli: newMockClient(errorMockResponse(http.StatusInternalServerError, "Server error")),
+	}
+	_, err := client.ContainerGet(context.Background(), "nothing")
+	if err == nil || !strings.Contains(err.Error(), "Server error") {
+		t.Fatalf("expected a Server Error, got %v", err)
+	}
+}
+
+func TestContainerGet(t *testing.T) {
+	expectedURL := "/containers/container_id/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)
+		}
+		containerJSON := types.ContainerJSON{
+			Driver: "Driver",
+			Image:  "Image",
+		}
+		b, err := json.Marshal(containerJSON)
+		if err != nil {
+			return nil, err
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Body:       ioutil.NopCloser(bytes.NewReader([]byte(b))),
+		}, nil
+	})
+	client := &APIClient{
+		HTTPCli: httpClient,
+	}
+	if _, err := client.ContainerGet(context.Background(), "container_id"); err != nil {
+		t.Fatal(err)
+	}
+}