github.com/rita33cool1/iot-system-gateway@v0.0.0-20200911033302-e65bde238cc5/docker-engine/integration/container/stats_test.go (about)

     1  package container // import "github.com/docker/docker/integration/container"
     2  
     3  import (
     4  	"context"
     5  	"encoding/json"
     6  	"io"
     7  	"testing"
     8  	"time"
     9  
    10  	"github.com/docker/docker/api/types"
    11  	"github.com/docker/docker/integration/internal/container"
    12  	"github.com/docker/docker/integration/internal/request"
    13  	"github.com/gotestyourself/gotestyourself/assert"
    14  	is "github.com/gotestyourself/gotestyourself/assert/cmp"
    15  	"github.com/gotestyourself/gotestyourself/poll"
    16  	"github.com/gotestyourself/gotestyourself/skip"
    17  )
    18  
    19  func TestStats(t *testing.T) {
    20  	skip.If(t, !testEnv.DaemonInfo.MemoryLimit)
    21  
    22  	defer setupTest(t)()
    23  	client := request.NewAPIClient(t)
    24  	ctx := context.Background()
    25  
    26  	info, err := client.Info(ctx)
    27  	assert.NilError(t, err)
    28  
    29  	cID := container.Run(t, ctx, client)
    30  
    31  	poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond))
    32  
    33  	resp, err := client.ContainerStats(ctx, cID, false)
    34  	assert.NilError(t, err)
    35  	defer resp.Body.Close()
    36  
    37  	var v *types.Stats
    38  	err = json.NewDecoder(resp.Body).Decode(&v)
    39  	assert.NilError(t, err)
    40  	assert.Check(t, is.Equal(int64(v.MemoryStats.Limit), info.MemTotal))
    41  	err = json.NewDecoder(resp.Body).Decode(&v)
    42  	assert.Assert(t, is.ErrorContains(err, ""), io.EOF)
    43  }