github.com/sld880311/docker@v0.0.0-20200524143708-d5593973a475/integration-cli/docker_api_stats_unix_test.go (about)

     1  // +build !windows
     2  
     3  package main
     4  
     5  import (
     6  	"encoding/json"
     7  	"fmt"
     8  	"net/http"
     9  
    10  	"github.com/docker/docker/api/types"
    11  	"github.com/docker/docker/pkg/integration/checker"
    12  	"github.com/go-check/check"
    13  )
    14  
    15  func (s *DockerSuite) TestAPIStatsContainerGetMemoryLimit(c *check.C) {
    16  	testRequires(c, DaemonIsLinux, memoryLimitSupport)
    17  
    18  	resp, body, err := sockRequestRaw("GET", "/info", nil, "application/json")
    19  	c.Assert(err, checker.IsNil)
    20  	c.Assert(resp.StatusCode, checker.Equals, http.StatusOK)
    21  	var info types.Info
    22  	err = json.NewDecoder(body).Decode(&info)
    23  	c.Assert(err, checker.IsNil)
    24  	body.Close()
    25  
    26  	// don't set a memory limit, the memory limit should be system memory
    27  	conName := "foo"
    28  	dockerCmd(c, "run", "-d", "--name", conName, "busybox", "top")
    29  	c.Assert(waitRun(conName), checker.IsNil)
    30  
    31  	resp, body, err = sockRequestRaw("GET", fmt.Sprintf("/containers/%s/stats?stream=false", conName), nil, "")
    32  	c.Assert(err, checker.IsNil)
    33  	c.Assert(resp.StatusCode, checker.Equals, http.StatusOK)
    34  	c.Assert(resp.Header.Get("Content-Type"), checker.Equals, "application/json")
    35  
    36  	var v *types.Stats
    37  	err = json.NewDecoder(body).Decode(&v)
    38  	c.Assert(err, checker.IsNil)
    39  	body.Close()
    40  	c.Assert(fmt.Sprintf("%d", v.MemoryStats.Limit), checker.Equals, fmt.Sprintf("%d", info.MemTotal))
    41  }