github.com/wulonghui/docker@v1.8.0-rc2/integration-cli/docker_api_logs_test.go (about)

     1  package main
     2  
     3  import (
     4  	"bufio"
     5  	"bytes"
     6  	"fmt"
     7  	"net/http"
     8  	"strings"
     9  	"time"
    10  
    11  	"github.com/go-check/check"
    12  )
    13  
    14  func (s *DockerSuite) TestLogsApiWithStdout(c *check.C) {
    15  	out, _ := dockerCmd(c, "run", "-d", "-t", "busybox", "/bin/sh", "-c", "while true; do echo hello; sleep 1; done")
    16  	id := strings.TrimSpace(out)
    17  	if err := waitRun(id); err != nil {
    18  		c.Fatal(err)
    19  	}
    20  
    21  	type logOut struct {
    22  		out string
    23  		res *http.Response
    24  		err error
    25  	}
    26  	chLog := make(chan logOut)
    27  
    28  	go func() {
    29  		res, body, err := sockRequestRaw("GET", fmt.Sprintf("/containers/%s/logs?follow=1&stdout=1&timestamps=1", id), nil, "")
    30  		if err != nil {
    31  			chLog <- logOut{"", nil, err}
    32  			return
    33  		}
    34  		defer body.Close()
    35  		out, err := bufio.NewReader(body).ReadString('\n')
    36  		if err != nil {
    37  			chLog <- logOut{"", nil, err}
    38  			return
    39  		}
    40  		chLog <- logOut{strings.TrimSpace(out), res, err}
    41  	}()
    42  
    43  	select {
    44  	case l := <-chLog:
    45  		c.Assert(l.err, check.IsNil)
    46  		c.Assert(l.res.StatusCode, check.Equals, http.StatusOK)
    47  		if !strings.HasSuffix(l.out, "hello") {
    48  			c.Fatalf("expected log output to container 'hello', but it does not")
    49  		}
    50  	case <-time.After(2 * time.Second):
    51  		c.Fatal("timeout waiting for logs to exit")
    52  	}
    53  }
    54  
    55  func (s *DockerSuite) TestLogsApiNoStdoutNorStderr(c *check.C) {
    56  	name := "logs_test"
    57  	dockerCmd(c, "run", "-d", "-t", "--name", name, "busybox", "/bin/sh")
    58  
    59  	status, body, err := sockRequest("GET", fmt.Sprintf("/containers/%s/logs", name), nil)
    60  	c.Assert(status, check.Equals, http.StatusBadRequest)
    61  	c.Assert(err, check.IsNil)
    62  
    63  	expected := "Bad parameters: you must choose at least one stream"
    64  	if !bytes.Contains(body, []byte(expected)) {
    65  		c.Fatalf("Expected %s, got %s", expected, string(body[:]))
    66  	}
    67  }
    68  
    69  // Regression test for #12704
    70  func (s *DockerSuite) TestLogsApiFollowEmptyOutput(c *check.C) {
    71  	name := "logs_test"
    72  	t0 := time.Now()
    73  	dockerCmd(c, "run", "-d", "-t", "--name", name, "busybox", "sleep", "10")
    74  
    75  	_, body, err := sockRequestRaw("GET", fmt.Sprintf("/containers/%s/logs?follow=1&stdout=1&stderr=1&tail=all", name), bytes.NewBuffer(nil), "")
    76  	t1 := time.Now()
    77  	c.Assert(err, check.IsNil)
    78  	body.Close()
    79  	elapsed := t1.Sub(t0).Seconds()
    80  	if elapsed > 5.0 {
    81  		c.Fatalf("HTTP response was not immediate (elapsed %.1fs)", elapsed)
    82  	}
    83  }