package system // import "github.com/docker/docker/integration/system" import ( "net/http" "strings" "testing" "github.com/docker/docker/api/types/versions" "github.com/docker/docker/internal/test/request" "gotest.tools/assert" "gotest.tools/skip" ) func TestPingCacheHeaders(t *testing.T) { skip.If(t, versions.LessThan(testEnv.DaemonAPIVersion(), "1.40"), "skip test from new feature") defer setupTest(t)() res, _, err := request.Get("/_ping") assert.NilError(t, err) assert.Equal(t, res.StatusCode, http.StatusOK) assert.Equal(t, hdr(res, "Cache-Control"), "no-cache, no-store, must-revalidate") assert.Equal(t, hdr(res, "Pragma"), "no-cache") } func TestPingGet(t *testing.T) { defer setupTest(t)() res, body, err := request.Get("/_ping") assert.NilError(t, err) b, err := request.ReadBody(body) assert.NilError(t, err) assert.Equal(t, string(b), "OK") assert.Equal(t, res.StatusCode, http.StatusOK) assert.Check(t, hdr(res, "API-Version") != "") } func TestPingHead(t *testing.T) { skip.If(t, versions.LessThan(testEnv.DaemonAPIVersion(), "1.40"), "skip test from new feature") defer setupTest(t)() res, body, err := request.Head("/_ping") assert.NilError(t, err) b, err := request.ReadBody(body) assert.NilError(t, err) assert.Equal(t, 0, len(b)) assert.Equal(t, res.StatusCode, http.StatusOK) assert.Check(t, hdr(res, "API-Version") != "") } func hdr(res *http.Response, name string) string { val, ok := res.Header[http.CanonicalHeaderKey(name)] if !ok || len(val) == 0 { return "" } return strings.Join(val, ", ") }