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moby--moby/client/service_logs_test.go

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package client // import "github.com/docker/docker/client"
import (
"bytes"
"context"
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"os"
"strings"
"testing"
"time"
"github.com/docker/docker/api/types"
"gotest.tools/assert"
is "gotest.tools/assert/cmp"
)
func TestServiceLogsError(t *testing.T) {
client := &Client{
client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
}
_, err := client.ServiceLogs(context.Background(), "service_id", types.ContainerLogsOptions{})
assert.Check(t, is.Error(err, "Error response from daemon: Server error"))
_, err = client.ServiceLogs(context.Background(), "service_id", types.ContainerLogsOptions{
Since: "2006-01-02TZ",
})
assert.Check(t, is.ErrorContains(err, `parsing time "2006-01-02TZ"`))
}
func TestServiceLogs(t *testing.T) {
expectedURL := "/services/service_id/logs"
cases := []struct {
options types.ContainerLogsOptions
expectedQueryParams map[string]string
expectedError string
}{
{
expectedQueryParams: map[string]string{
"tail": "",
},
},
{
options: types.ContainerLogsOptions{
Tail: "any",
},
expectedQueryParams: map[string]string{
"tail": "any",
},
},
{
options: types.ContainerLogsOptions{
ShowStdout: true,
ShowStderr: true,
Timestamps: true,
Details: true,
Follow: true,
},
expectedQueryParams: map[string]string{
"tail": "",
"stdout": "1",
"stderr": "1",
"timestamps": "1",
"details": "1",
"follow": "1",
},
},
{
options: types.ContainerLogsOptions{
// timestamp will be passed as is
Since: "1136073600.000000001",
},
expectedQueryParams: map[string]string{
"tail": "",
"since": "1136073600.000000001",
},
},
{
options: types.ContainerLogsOptions{
// An complete invalid date will not be passed
Since: "invalid value",
},
expectedError: `invalid value for "since": failed to parse value as time or duration: "invalid value"`,
},
}
for _, logCase := range cases {
client := &Client{
client: newMockClient(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)
}
// Check query parameters
query := r.URL.Query()
for key, expected := range logCase.expectedQueryParams {
actual := query.Get(key)
if actual != expected {
return nil, fmt.Errorf("%s not set in URL query properly. Expected '%s', got %s", key, expected, actual)
}
}
return &http.Response{
StatusCode: http.StatusOK,
Body: ioutil.NopCloser(bytes.NewReader([]byte("response"))),
}, nil
}),
}
body, err := client.ServiceLogs(context.Background(), "service_id", logCase.options)
if logCase.expectedError != "" {
assert.Check(t, is.Error(err, logCase.expectedError))
continue
}
assert.NilError(t, err)
defer body.Close()
content, err := ioutil.ReadAll(body)
assert.NilError(t, err)
assert.Check(t, is.Contains(string(content), "response"))
}
}
func ExampleClient_ServiceLogs_withTimeout() {
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
client, _ := NewEnvClient()
reader, err := client.ServiceLogs(ctx, "service_id", types.ContainerLogsOptions{})
if err != nil {
log.Fatal(err)
}
_, err = io.Copy(os.Stdout, reader)
if err != nil && err != io.EOF {
log.Fatal(err)
}
}