moby/client/swarm_leave_test.go

package client

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

	cerrdefs "github.com/containerd/errdefs"
	"gotest.tools/v3/assert"
	is "gotest.tools/v3/assert/cmp"
)

func TestSwarmLeaveError(t *testing.T) {
	client, err := NewClientWithOpts(WithMockClient(errorMock(http.StatusInternalServerError, "Server error")))
	assert.NilError(t, err)

	err = client.SwarmLeave(context.Background(), false)
	assert.Check(t, is.ErrorType(err, cerrdefs.IsInternal))
}

func TestSwarmLeave(t *testing.T) {
	expectedURL := "/swarm/leave"

	leaveCases := []struct {
		force         bool
		expectedForce string
	}{
		{
			expectedForce: "",
		},
		{
			force:         true,
			expectedForce: "1",
		},
	}

	for _, leaveCase := range leaveCases {
		client, err := NewClientWithOpts(WithMockClient(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)
			}
			if req.Method != http.MethodPost {
				return nil, fmt.Errorf("expected POST method, got %s", req.Method)
			}
			force := req.URL.Query().Get("force")
			if force != leaveCase.expectedForce {
				return nil, fmt.Errorf("force not set in URL query properly. expected '%s', got %s", leaveCase.expectedForce, force)
			}
			return &http.Response{
				StatusCode: http.StatusOK,
				Body:       io.NopCloser(bytes.NewReader([]byte(""))),
			}, nil
		}))
		assert.NilError(t, err)

		err = client.SwarmLeave(context.Background(), leaveCase.force)
		assert.NilError(t, err)
	}
}