influxdb/services/httpd/response_writer_test.go

284 lines
7.4 KiB
Go

package httpd_test
import (
"bytes"
"encoding/json"
"fmt"
"math"
"net/http"
"net/http/httptest"
"net/url"
"strings"
"testing"
"time"
"github.com/influxdata/influxdb/models"
"github.com/influxdata/influxdb/query"
"github.com/influxdata/influxdb/services/httpd"
"github.com/tinylib/msgp/msgp"
)
func TestResponseWriter_CSV(t *testing.T) {
tableTest := []struct {
header string
}{
{header: "*/csv"},
{header: "text/*"},
{header: "text/csv"},
{header: "text/csv,application/json"},
{header: "text/csv;q=1,application/json"},
{header: "text/csv;q=0.9,application/json;q=0.8"},
{header: "application/json;q=0.8,text/csv;q=0.9"},
}
for _, testCase := range tableTest {
testCase := testCase
t.Run(testCase.header, func(t *testing.T) {
t.Parallel()
header := make(http.Header)
header.Set("Accept", testCase.header)
r := &http.Request{
Header: header,
URL: &url.URL{},
}
w := httptest.NewRecorder()
writer := httpd.NewResponseWriter(w, r)
n, err := writer.WriteResponse(httpd.Response{
Results: []*query.Result{
{
StatementID: 0,
Series: []*models.Row{
{
Name: "cpu",
Tags: map[string]string{
"host": "server01",
"region": "uswest",
},
Columns: []string{"time", "value"},
Values: [][]interface{}{
{time.Unix(0, 10), float64(2.5)},
{time.Unix(0, 20), int64(5)},
{time.Unix(0, 30), nil},
{time.Unix(0, 40), "foobar"},
{time.Unix(0, 50), true},
{time.Unix(0, 60), false},
{time.Unix(0, 70), uint64(math.MaxInt64 + 1)},
},
},
{
Name: "cpu",
Tags: map[string]string{
"host": "",
"region": "",
},
Columns: []string{"time", "value"},
Values: [][]interface{}{
{time.Unix(0, 10), float64(2.5)},
{time.Unix(0, 20), int64(5)},
{time.Unix(0, 30), nil},
{time.Unix(0, 40), "foobar"},
{time.Unix(0, 50), true},
{time.Unix(0, 60), false},
{time.Unix(0, 70), uint64(math.MaxInt64 + 1)},
},
},
},
},
},
})
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got, want := w.Body.String(), `name,tags,time,value
cpu,"host=server01,region=uswest",10,2.5
cpu,"host=server01,region=uswest",20,5
cpu,"host=server01,region=uswest",30,
cpu,"host=server01,region=uswest",40,foobar
cpu,"host=server01,region=uswest",50,true
cpu,"host=server01,region=uswest",60,false
cpu,"host=server01,region=uswest",70,9223372036854775808
cpu,,10,2.5
cpu,,20,5
cpu,,30,
cpu,,40,foobar
cpu,,50,true
cpu,,60,false
cpu,,70,9223372036854775808
`; got != want {
t.Errorf("unexpected output:\n\ngot=%v\nwant=%s", got, want)
} else if got, want := n, len(want); got != want {
t.Errorf("unexpected output length: got=%d want=%d", got, want)
}
})
}
}
func TestResponseWriter_MessagePack(t *testing.T) {
tableTest := []struct {
header string
}{
{header: "*/x-msgpack"},
{header: "application/x-msgpack"},
{header: "application/x-msgpack,application/json"},
{header: "application/x-msgpack;q=1,application/json"},
{header: "application/x-msgpack;q=0.9,application/json;q=0.8"},
{header: "application/json;q=0.8,application/x-msgpack;q=0.9"},
}
for _, testCase := range tableTest {
testCase := testCase
t.Run(testCase.header, func(t *testing.T) {
t.Parallel()
header := make(http.Header)
header.Set("Accept", testCase.header)
r := &http.Request{
Header: header,
URL: &url.URL{},
}
w := httptest.NewRecorder()
writer := httpd.NewResponseWriter(w, r)
_, err := writer.WriteResponse(httpd.Response{
Results: []*query.Result{
{
StatementID: 0,
Series: []*models.Row{
{
Name: "cpu",
Tags: map[string]string{
"host": "server01",
},
Columns: []string{"time", "value"},
Values: [][]interface{}{
{time.Unix(0, 10), float64(2.5)},
{time.Unix(0, 20), int64(5)},
{time.Unix(0, 30), nil},
{time.Unix(0, 40), "foobar"},
{time.Unix(0, 50), true},
{time.Unix(0, 60), false},
{time.Unix(0, 70), uint64(math.MaxInt64 + 1)},
},
},
},
},
},
})
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
// The reader always reads times as time.Local so encode the expected response
// as JSON and insert it into the expected values.
values, err := json.Marshal([][]interface{}{
{time.Unix(0, 10).Local(), float64(2.5)},
{time.Unix(0, 20).Local(), int64(5)},
{time.Unix(0, 30).Local(), nil},
{time.Unix(0, 40).Local(), "foobar"},
{time.Unix(0, 50).Local(), true},
{time.Unix(0, 60).Local(), false},
{time.Unix(0, 70).Local(), uint64(math.MaxInt64 + 1)},
})
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
reader := msgp.NewReader(w.Body)
var buf bytes.Buffer
if _, err := reader.WriteToJSON(&buf); err != nil {
t.Fatalf("unexpected error: %s", err)
}
want := fmt.Sprintf(`{"results":[{"statement_id":0,"series":[{"name":"cpu","tags":{"host":"server01"},"columns":["time","value"],"values":%s}]}]}`, string(values))
if got := strings.TrimSpace(buf.String()); got != want {
t.Fatalf("unexpected output:\n\ngot=%v\nwant=%v", got, want)
}
})
}
}
func TestResponseWriter_MessagePack_Error(t *testing.T) {
tableTest := []struct {
header string
}{
{header: "application/x-msgpack"},
{header: "application/x-msgpack,application/json"},
{header: "application/x-msgpack;q=1,application/json"},
{header: "application/x-msgpack;q=0.9,application/json;q=0.8"},
{header: "application/json;q=0.8,application/x-msgpack;q=0.9"},
}
for _, testCase := range tableTest {
testCase := testCase
t.Run(testCase.header, func(t *testing.T) {
t.Parallel()
header := make(http.Header)
header.Set("Accept", testCase.header)
r := &http.Request{
Header: header,
URL: &url.URL{},
}
w := httptest.NewRecorder()
writer := httpd.NewResponseWriter(w, r)
writer.WriteResponse(httpd.Response{
Err: fmt.Errorf("test error"),
})
reader := msgp.NewReader(w.Body)
var buf bytes.Buffer
if _, err := reader.WriteToJSON(&buf); err != nil {
t.Fatalf("unexpected error: %s", err)
}
want := `{"error":"test error"}`
if have := strings.TrimSpace(buf.String()); have != want {
t.Fatalf("unexpected output: %s != %s", have, want)
}
})
}
}
func TestResponseWriter_CSV_DifferentColumns(t *testing.T) {
header := make(http.Header)
header.Set("Accept", "text/csv")
r := &http.Request{
Header: header,
URL: &url.URL{},
}
w := httptest.NewRecorder()
writer := httpd.NewResponseWriter(w, r)
writer.WriteResponse(httpd.Response{
Results: []*query.Result{
{
StatementID: 0,
Series: []*models.Row{
{
Name: "network",
Columns: []string{"hostname"},
Values: [][]interface{}{
{"localhost"},
},
},
{
Name: "runtime",
Columns: []string{"GOARCH", "GOMAXPROCS", "GOOS", "version"},
Values: [][]interface{}{
{"amd64", int64(8), "darwin", "go1.12"},
},
},
},
},
},
})
if got, want := w.Body.String(), `name,tags,hostname
network,,localhost
name,tags,GOARCH,GOMAXPROCS,GOOS,version
runtime,,amd64,8,darwin,go1.12
`; got != want {
t.Errorf("unexpected output:\n\ngot=%v\nwant=%s", got, want)
}
}