package client

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"net/http"
	"strings"
	"testing"

	"golang.org/x/net/context"
)

func TestContainerExportError(t *testing.T) {
	client := &Client{
		transport: newMockClient(nil, errorMock(http.StatusInternalServerError, "Server error")),
	}
	_, err := client.ContainerExport(context.Background(), "nothing")
	if err == nil || err.Error() != "Error response from daemon: Server error" {
		t.Fatalf("expected a Server Error, got %v", err)
	}
}

func TestContainerExport(t *testing.T) {
	expectedURL := "/containers/container_id/export"
	client := &Client{
		transport: newMockClient(nil, func(r *http.Request) (*http.Response, error) {
			if !strings.HasPrefix(r.URL.Path, expectedURL) {
				return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, r.URL)
			}

			return &http.Response{
				StatusCode: http.StatusOK,
				Body:       ioutil.NopCloser(bytes.NewReader([]byte("response"))),
			}, nil
		}),
	}
	body, err := client.ContainerExport(context.Background(), "container_id")
	if err != nil {
		t.Fatal(err)
	}
	defer body.Close()
	content, err := ioutil.ReadAll(body)
	if err != nil {
		t.Fatal(err)
	}
	if string(content) != "response" {
		t.Fatalf("expected response to contain 'response', got %s", string(content))
	}
}

package client

import (
	"net/http"
	"testing"

	"golang.org/x/net/context"
)

func TestContainerExportError(t *testing.T) {
	client := &Client{
		transport: newMockClient(nil, errorMock(http.StatusInternalServerError, "Server error")),
	}
	_, err := client.ContainerExport(context.Background(), "nothing")
	if err == nil || err.Error() != "Error response from daemon: Server error" {
		t.Fatalf("expected a Server Error, got %v", err)
	}
}

--- 
+++ 
@@ -1,7 +1,11 @@
 package client
 
 import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
 	"net/http"
+	"strings"
 	"testing"
 
 	"golang.org/x/net/context"
@@ -16,3 +20,31 @@
 		t.Fatalf("expected a Server Error, got %v", err)
 	}
 }
+
+func TestContainerExport(t *testing.T) {
+	expectedURL := "/containers/container_id/export"
+	client := &Client{
+		transport: newMockClient(nil, func(r *http.Request) (*http.Response, error) {
+			if !strings.HasPrefix(r.URL.Path, expectedURL) {
+				return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, r.URL)
+			}
+
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Body:       ioutil.NopCloser(bytes.NewReader([]byte("response"))),
+			}, nil
+		}),
+	}
+	body, err := client.ContainerExport(context.Background(), "container_id")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer body.Close()
+	content, err := ioutil.ReadAll(body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if string(content) != "response" {
+		t.Fatalf("expected response to contain 'response', got %s", string(content))
+	}
+}
Add a happy path test on ContainerExport

Signed-off-by: Vincent Demeester <87e1f221a672a14a323e57bb65eaea19d3ed3804@sbr.pm>
