mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-18 22:52:11 +01:00
43fc1183b9
This makes test code more clear and reduces the number of code lines by 500.
This also simplifies debugging tests. See https://itnext.io/f-tests-as-a-replacement-for-table-driven-tests-in-go-8814a8b19e9e
While at it, consistently use t.Fatal* instead of t.Error* across tests, since t.Error*
requires more boilerplate code, which can result in additional bugs inside tests.
While t.Error* allows writing logging errors for the same, this doesn't simplify fixing
broken tests most of the time.
This is a follow-up for a9525da8a4
669 lines
19 KiB
Go
669 lines
19 KiB
Go
package datasource
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import (
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"context"
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"fmt"
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"net/http"
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"net/http/httptest"
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"net/url"
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"reflect"
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"sort"
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"strings"
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"testing"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/utils"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
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)
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var (
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ctx = context.Background()
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basicAuthName = "foo"
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basicAuthPass = "bar"
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baCfg = &promauth.BasicAuthConfig{
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Username: basicAuthName,
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Password: promauth.NewSecret(basicAuthPass),
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}
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query = "vm_rows"
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queryRender = "constantLine(10)"
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)
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func TestVMInstantQuery(t *testing.T) {
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mux := http.NewServeMux()
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mux.HandleFunc("/", func(_ http.ResponseWriter, _ *http.Request) {
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t.Fatalf("should not be called")
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})
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c := -1
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mux.HandleFunc("/api/v1/query", func(w http.ResponseWriter, r *http.Request) {
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c++
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if r.Method != http.MethodPost {
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t.Fatalf("expected POST method got %s", r.Method)
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}
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if name, pass, _ := r.BasicAuth(); name != basicAuthName || pass != basicAuthPass {
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t.Fatalf("expected %s:%s as basic auth got %s:%s", basicAuthName, basicAuthPass, name, pass)
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}
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if r.URL.Query().Get("query") != query {
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t.Fatalf("expected %s in query param, got %s", query, r.URL.Query().Get("query"))
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}
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timeParam := r.URL.Query().Get("time")
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if timeParam == "" {
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t.Fatalf("expected 'time' in query param, got nil instead")
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}
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if _, err := time.Parse(time.RFC3339, timeParam); err != nil {
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t.Fatalf("failed to parse 'time' query param %q: %s", timeParam, err)
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}
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switch c {
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case 0:
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w.WriteHeader(500)
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case 1:
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w.Write([]byte("[]"))
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case 2:
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w.Write([]byte(`{"status":"error", "errorType":"type:", "error":"some error msg"}`))
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case 3:
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w.Write([]byte(`{"status":"unknown"}`))
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case 4:
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w.Write([]byte(`{"status":"success","data":{"resultType":"matrix"}}`))
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case 5:
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w.Write([]byte(`{"status":"success","data":{"resultType":"vector","result":[{"metric":{"__name__":"vm_rows","foo":"bar"},"value":[1583786142,"13763"]},{"metric":{"__name__":"vm_requests","foo":"baz"},"value":[1583786140,"2000"]}]}}`))
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case 6:
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w.Write([]byte(`{"status":"success","data":{"resultType":"scalar","result":[1583786142, "1"]}}`))
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case 7:
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w.Write([]byte(`{"status":"success","data":{"resultType":"scalar","result":[1583786142, "1"]},"stats":{"seriesFetched": "42"}}`))
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}
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})
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mux.HandleFunc("/render", func(w http.ResponseWriter, _ *http.Request) {
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c++
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switch c {
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case 8:
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w.Write([]byte(`[{"target":"constantLine(10)","tags":{"name":"constantLine(10)"},"datapoints":[[10,1611758343],[10,1611758373],[10,1611758403]]}]`))
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}
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})
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srv := httptest.NewServer(mux)
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defer srv.Close()
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authCfg, err := baCfg.NewConfig(".")
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if err != nil {
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t.Fatalf("unexpected: %s", err)
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}
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s := NewVMStorage(srv.URL, authCfg, 0, false, srv.Client())
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p := datasourcePrometheus
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pq := s.BuildWithParams(QuerierParams{DataSourceType: string(p), EvaluationInterval: 15 * time.Second})
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ts := time.Now()
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expErr := func(err string) {
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_, _, gotErr := pq.Query(ctx, query, ts)
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if gotErr == nil {
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t.Fatalf("expected %q got nil", err)
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}
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if !strings.Contains(gotErr.Error(), err) {
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t.Fatalf("expected err %q; got %q", err, gotErr)
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}
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}
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expErr("500") // 0
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expErr("error parsing prometheus metrics") // 1
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expErr("response error") // 2
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expErr("unknown status") // 3
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expErr("unexpected end of JSON input") // 4
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res, _, err := pq.Query(ctx, query, ts) // 5 - vector
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if err != nil {
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t.Fatalf("unexpected %s", err)
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}
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if len(res.Data) != 2 {
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t.Fatalf("expected 2 metrics got %d in %+v", len(res.Data), res.Data)
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}
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expected := []Metric{
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{
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Labels: []Label{{Value: "vm_rows", Name: "__name__"}, {Value: "bar", Name: "foo"}},
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Timestamps: []int64{1583786142},
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Values: []float64{13763},
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},
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{
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Labels: []Label{{Value: "vm_requests", Name: "__name__"}, {Value: "baz", Name: "foo"}},
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Timestamps: []int64{1583786140},
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Values: []float64{2000},
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},
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}
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metricsEqual(t, res.Data, expected)
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res, req, err := pq.Query(ctx, query, ts) // 6 - scalar
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if err != nil {
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t.Fatalf("unexpected %s", err)
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}
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if req == nil {
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t.Fatalf("expected request to be non-nil")
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}
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if len(res.Data) != 1 {
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t.Fatalf("expected 1 metrics got %d in %+v", len(res.Data), res.Data)
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}
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expected = []Metric{
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{
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Timestamps: []int64{1583786142},
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Values: []float64{1},
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},
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}
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if !reflect.DeepEqual(res.Data, expected) {
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t.Fatalf("unexpected metric %+v want %+v", res.Data, expected)
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}
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if res.SeriesFetched != nil {
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t.Fatalf("expected `seriesFetched` field to be nil when it is missing in datasource response; got %v instead",
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res.SeriesFetched)
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}
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res, _, err = pq.Query(ctx, query, ts) // 7 - scalar with stats
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if err != nil {
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t.Fatalf("unexpected %s", err)
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}
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if len(res.Data) != 1 {
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t.Fatalf("expected 1 metrics got %d in %+v", len(res.Data), res)
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}
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expected = []Metric{
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{
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Timestamps: []int64{1583786142},
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Values: []float64{1},
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},
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}
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if !reflect.DeepEqual(res.Data, expected) {
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t.Fatalf("unexpected metric %+v want %+v", res.Data, expected)
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}
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if *res.SeriesFetched != 42 {
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t.Fatalf("expected `seriesFetched` field to be 42; got %d instead",
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*res.SeriesFetched)
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}
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gq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourceGraphite)})
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res, _, err = gq.Query(ctx, queryRender, ts) // 8 - graphite
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if err != nil {
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t.Fatalf("unexpected %s", err)
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}
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if len(res.Data) != 1 {
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t.Fatalf("expected 1 metric got %d in %+v", len(res.Data), res.Data)
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}
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exp := []Metric{
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{
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Labels: []Label{{Value: "constantLine(10)", Name: "name"}},
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Timestamps: []int64{1611758403},
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Values: []float64{10},
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},
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}
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metricsEqual(t, res.Data, exp)
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}
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func TestVMInstantQueryWithRetry(t *testing.T) {
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mux := http.NewServeMux()
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mux.HandleFunc("/", func(_ http.ResponseWriter, _ *http.Request) {
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t.Fatalf("should not be called")
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})
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c := -1
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mux.HandleFunc("/api/v1/query", func(w http.ResponseWriter, r *http.Request) {
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c++
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if r.URL.Query().Get("query") != query {
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t.Fatalf("expected %s in query param, got %s", query, r.URL.Query().Get("query"))
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}
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switch c {
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case 0:
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w.Write([]byte(`{"status":"success","data":{"resultType":"scalar","result":[1583786142, "1"]}}`))
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case 1:
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conn, _, _ := w.(http.Hijacker).Hijack()
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_ = conn.Close()
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case 2:
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w.Write([]byte(`{"status":"success","data":{"resultType":"scalar","result":[1583786142, "2"]}}`))
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case 3:
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conn, _, _ := w.(http.Hijacker).Hijack()
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_ = conn.Close()
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case 4:
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conn, _, _ := w.(http.Hijacker).Hijack()
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_ = conn.Close()
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}
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})
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srv := httptest.NewServer(mux)
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defer srv.Close()
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s := NewVMStorage(srv.URL, nil, 0, false, srv.Client())
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pq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourcePrometheus)})
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expErr := func(err string) {
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_, _, gotErr := pq.Query(ctx, query, time.Now())
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if gotErr == nil {
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t.Fatalf("expected %q got nil", err)
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}
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if !strings.Contains(gotErr.Error(), err) {
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t.Fatalf("expected err %q; got %q", err, gotErr)
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}
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}
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expValue := func(v float64) {
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res, _, err := pq.Query(ctx, query, time.Now())
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if err != nil {
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t.Fatalf("unexpected %s", err)
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}
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m := res.Data
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if len(m) != 1 {
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t.Fatalf("expected 1 metrics got %d in %+v", len(m), m)
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}
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expected := []Metric{
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{
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Timestamps: []int64{1583786142},
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Values: []float64{v},
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},
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}
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if !reflect.DeepEqual(m, expected) {
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t.Fatalf("unexpected metric %+v want %+v", m, expected)
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}
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}
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expValue(1) // 0
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expValue(2) // 1 - fail, 2 - retry
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expErr("EOF") // 3, 4 - retries
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}
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func metricsEqual(t *testing.T, gotM, expectedM []Metric) {
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for i, exp := range expectedM {
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got := gotM[i]
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gotTS, expTS := got.Timestamps, exp.Timestamps
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if !reflect.DeepEqual(gotTS, expTS) {
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t.Fatalf("unexpected timestamps %+v want %+v", gotTS, expTS)
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}
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gotV, expV := got.Values, exp.Values
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if !reflect.DeepEqual(gotV, expV) {
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t.Fatalf("unexpected values %+v want %+v", gotV, expV)
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}
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sort.Slice(got.Labels, func(i, j int) bool {
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return got.Labels[i].Name < got.Labels[j].Name
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})
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sort.Slice(exp.Labels, func(i, j int) bool {
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return exp.Labels[i].Name < exp.Labels[j].Name
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})
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if !reflect.DeepEqual(exp.Labels, got.Labels) {
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t.Fatalf("unexpected labels %+v want %+v", got.Labels, exp.Labels)
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}
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}
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}
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func TestVMRangeQuery(t *testing.T) {
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mux := http.NewServeMux()
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mux.HandleFunc("/", func(_ http.ResponseWriter, _ *http.Request) {
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t.Fatalf("should not be called")
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})
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c := -1
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mux.HandleFunc("/api/v1/query_range", func(w http.ResponseWriter, r *http.Request) {
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c++
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if r.Method != http.MethodPost {
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t.Fatalf("expected POST method got %s", r.Method)
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}
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if name, pass, _ := r.BasicAuth(); name != basicAuthName || pass != basicAuthPass {
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t.Fatalf("expected %s:%s as basic auth got %s:%s", basicAuthName, basicAuthPass, name, pass)
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}
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if r.URL.Query().Get("query") != query {
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t.Fatalf("expected %s in query param, got %s", query, r.URL.Query().Get("query"))
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}
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startTS := r.URL.Query().Get("start")
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if startTS == "" {
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t.Fatalf("expected 'start' in query param, got nil instead")
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}
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if _, err := time.Parse(time.RFC3339, startTS); err != nil {
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t.Fatalf("failed to parse 'start' query param: %s", err)
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}
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endTS := r.URL.Query().Get("end")
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if endTS == "" {
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t.Fatalf("expected 'end' in query param, got nil instead")
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}
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if _, err := time.Parse(time.RFC3339, endTS); err != nil {
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t.Fatalf("failed to parse 'end' query param: %s", err)
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}
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step := r.URL.Query().Get("step")
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if step != "15s" {
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t.Fatalf("expected 'step' query param to be 15s; got %q instead", step)
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}
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switch c {
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case 0:
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w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"__name__":"vm_rows"},"values":[[1583786142,"13763"]]}]}}`))
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}
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})
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srv := httptest.NewServer(mux)
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defer srv.Close()
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authCfg, err := baCfg.NewConfig(".")
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if err != nil {
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t.Fatalf("unexpected: %s", err)
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}
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s := NewVMStorage(srv.URL, authCfg, *queryStep, false, srv.Client())
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pq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourcePrometheus), EvaluationInterval: 15 * time.Second})
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_, err = pq.QueryRange(ctx, query, time.Now(), time.Time{})
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expectError(t, err, "is missing")
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_, err = pq.QueryRange(ctx, query, time.Time{}, time.Now())
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expectError(t, err, "is missing")
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start, end := time.Now().Add(-time.Minute), time.Now()
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res, err := pq.QueryRange(ctx, query, start, end)
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if err != nil {
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t.Fatalf("unexpected %s", err)
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}
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m := res.Data
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if len(m) != 1 {
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t.Fatalf("expected 1 metric got %d in %+v", len(m), m)
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}
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expected := Metric{
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Labels: []Label{{Value: "vm_rows", Name: "__name__"}},
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Timestamps: []int64{1583786142},
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Values: []float64{13763},
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}
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if !reflect.DeepEqual(m[0], expected) {
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t.Fatalf("unexpected metric %+v want %+v", m[0], expected)
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}
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gq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourceGraphite)})
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_, err = gq.QueryRange(ctx, queryRender, start, end)
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expectError(t, err, "is not supported")
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}
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func TestRequestParams(t *testing.T) {
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query := "up"
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timestamp := time.Date(2001, 2, 3, 4, 5, 6, 0, time.UTC)
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f := func(isQueryRange bool, vm *VMStorage, checkFn func(t *testing.T, r *http.Request)) {
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t.Helper()
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req, err := vm.newRequest(ctx)
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if err != nil {
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t.Fatalf("error in newRequest: %s", err)
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}
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switch vm.dataSourceType {
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case "", datasourcePrometheus:
|
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if isQueryRange {
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vm.setPrometheusRangeReqParams(req, query, timestamp, timestamp)
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} else {
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vm.setPrometheusInstantReqParams(req, query, timestamp)
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}
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case datasourceGraphite:
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vm.setGraphiteReqParams(req, query)
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|
}
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checkFn(t, req)
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}
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|
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authCfg, err := baCfg.NewConfig(".")
|
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if err != nil {
|
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t.Fatalf("unexpected error: %s", err)
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}
|
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storage := VMStorage{
|
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extraParams: url.Values{"round_digits": {"10"}},
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}
|
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|
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// prometheus path
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f(false, &VMStorage{
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dataSourceType: datasourcePrometheus,
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}, func(t *testing.T, r *http.Request) {
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checkEqualString(t, "/api/v1/query", r.URL.Path)
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})
|
|
|
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// prometheus prefix
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f(false, &VMStorage{
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dataSourceType: datasourcePrometheus,
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appendTypePrefix: true,
|
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}, func(t *testing.T, r *http.Request) {
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checkEqualString(t, "/prometheus/api/v1/query", r.URL.Path)
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})
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|
|
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// prometheus range path
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f(true, &VMStorage{
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dataSourceType: datasourcePrometheus,
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}, func(t *testing.T, r *http.Request) {
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checkEqualString(t, "/api/v1/query_range", r.URL.Path)
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})
|
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|
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// prometheus range prefix
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f(true, &VMStorage{
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dataSourceType: datasourcePrometheus,
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appendTypePrefix: true,
|
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}, func(t *testing.T, r *http.Request) {
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checkEqualString(t, "/prometheus/api/v1/query_range", r.URL.Path)
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})
|
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|
|
// graphite path
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f(false, &VMStorage{
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dataSourceType: datasourceGraphite,
|
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}, func(t *testing.T, r *http.Request) {
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checkEqualString(t, graphitePath, r.URL.Path)
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})
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|
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// graphite prefix
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f(false, &VMStorage{
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dataSourceType: datasourceGraphite,
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appendTypePrefix: true,
|
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}, func(t *testing.T, r *http.Request) {
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checkEqualString(t, graphitePrefix+graphitePath, r.URL.Path)
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})
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|
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// default params
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f(false, &VMStorage{}, func(t *testing.T, r *http.Request) {
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exp := url.Values{"query": {query}, "time": {timestamp.Format(time.RFC3339)}}
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checkEqualString(t, exp.Encode(), r.URL.RawQuery)
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})
|
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|
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// default range params
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f(true, &VMStorage{}, func(t *testing.T, r *http.Request) {
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ts := timestamp.Format(time.RFC3339)
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exp := url.Values{"query": {query}, "start": {ts}, "end": {ts}}
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checkEqualString(t, exp.Encode(), r.URL.RawQuery)
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})
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|
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// basic auth
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f(false, &VMStorage{
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authCfg: authCfg,
|
|
}, func(t *testing.T, r *http.Request) {
|
|
u, p, _ := r.BasicAuth()
|
|
checkEqualString(t, "foo", u)
|
|
checkEqualString(t, "bar", p)
|
|
})
|
|
|
|
// basic auth range
|
|
f(true, &VMStorage{
|
|
authCfg: authCfg,
|
|
}, func(t *testing.T, r *http.Request) {
|
|
u, p, _ := r.BasicAuth()
|
|
checkEqualString(t, "foo", u)
|
|
checkEqualString(t, "bar", p)
|
|
})
|
|
|
|
// evaluation interval
|
|
f(false, &VMStorage{
|
|
evaluationInterval: 15 * time.Second,
|
|
}, func(t *testing.T, r *http.Request) {
|
|
evalInterval := 15 * time.Second
|
|
exp := url.Values{"query": {query}, "step": {evalInterval.String()}, "time": {timestamp.Format(time.RFC3339)}}
|
|
checkEqualString(t, exp.Encode(), r.URL.RawQuery)
|
|
})
|
|
|
|
// step override
|
|
f(false, &VMStorage{
|
|
queryStep: time.Minute,
|
|
}, func(t *testing.T, r *http.Request) {
|
|
exp := url.Values{
|
|
"query": {query},
|
|
"step": {fmt.Sprintf("%ds", int(time.Minute.Seconds()))},
|
|
"time": {timestamp.Format(time.RFC3339)},
|
|
}
|
|
checkEqualString(t, exp.Encode(), r.URL.RawQuery)
|
|
})
|
|
|
|
// step to seconds
|
|
f(false, &VMStorage{
|
|
evaluationInterval: 3 * time.Hour,
|
|
}, func(t *testing.T, r *http.Request) {
|
|
evalInterval := 3 * time.Hour
|
|
exp := url.Values{"query": {query}, "step": {fmt.Sprintf("%ds", int(evalInterval.Seconds()))}, "time": {timestamp.Format(time.RFC3339)}}
|
|
checkEqualString(t, exp.Encode(), r.URL.RawQuery)
|
|
})
|
|
|
|
// prometheus extra params
|
|
f(false, &VMStorage{
|
|
extraParams: url.Values{"round_digits": {"10"}},
|
|
}, func(t *testing.T, r *http.Request) {
|
|
exp := url.Values{"query": {query}, "round_digits": {"10"}, "time": {timestamp.Format(time.RFC3339)}}
|
|
checkEqualString(t, exp.Encode(), r.URL.RawQuery)
|
|
})
|
|
|
|
// prometheus extra params range
|
|
f(true, &VMStorage{
|
|
extraParams: url.Values{
|
|
"nocache": {"1"},
|
|
"max_lookback": {"1h"},
|
|
},
|
|
}, func(t *testing.T, r *http.Request) {
|
|
exp := url.Values{
|
|
"query": {query},
|
|
"end": {timestamp.Format(time.RFC3339)},
|
|
"start": {timestamp.Format(time.RFC3339)},
|
|
"nocache": {"1"},
|
|
"max_lookback": {"1h"},
|
|
}
|
|
checkEqualString(t, exp.Encode(), r.URL.RawQuery)
|
|
})
|
|
|
|
// custom params overrides the original params
|
|
f(false, storage.Clone().ApplyParams(QuerierParams{
|
|
QueryParams: url.Values{"round_digits": {"2"}},
|
|
}), func(t *testing.T, r *http.Request) {
|
|
exp := url.Values{"query": {query}, "round_digits": {"2"}, "time": {timestamp.Format(time.RFC3339)}}
|
|
checkEqualString(t, exp.Encode(), r.URL.RawQuery)
|
|
})
|
|
|
|
// allow duplicates in query params
|
|
f(false, storage.Clone().ApplyParams(QuerierParams{
|
|
QueryParams: url.Values{"extra_labels": {"env=dev", "foo=bar"}},
|
|
}), func(t *testing.T, r *http.Request) {
|
|
exp := url.Values{"query": {query}, "round_digits": {"10"}, "extra_labels": {"env=dev", "foo=bar"}, "time": {timestamp.Format(time.RFC3339)}}
|
|
checkEqualString(t, exp.Encode(), r.URL.RawQuery)
|
|
})
|
|
|
|
// graphite extra params
|
|
f(false, &VMStorage{
|
|
dataSourceType: datasourceGraphite,
|
|
extraParams: url.Values{
|
|
"nocache": {"1"},
|
|
"max_lookback": {"1h"},
|
|
},
|
|
}, func(t *testing.T, r *http.Request) {
|
|
exp := fmt.Sprintf("format=json&from=-5min&max_lookback=1h&nocache=1&target=%s&until=now", query)
|
|
checkEqualString(t, exp, r.URL.RawQuery)
|
|
})
|
|
|
|
// graphite extra params allows to override from
|
|
f(false, &VMStorage{
|
|
dataSourceType: datasourceGraphite,
|
|
extraParams: url.Values{
|
|
"from": {"-10m"},
|
|
},
|
|
}, func(t *testing.T, r *http.Request) {
|
|
exp := fmt.Sprintf("format=json&from=-10m&target=%s&until=now", query)
|
|
checkEqualString(t, exp, r.URL.RawQuery)
|
|
})
|
|
}
|
|
|
|
func TestHeaders(t *testing.T) {
|
|
f := func(vmFn func() *VMStorage, checkFn func(t *testing.T, r *http.Request)) {
|
|
t.Helper()
|
|
|
|
vm := vmFn()
|
|
req, err := vm.newQueryRequest(ctx, "foo", time.Now())
|
|
if err != nil {
|
|
t.Fatalf("error in newQueryRequest: %s", err)
|
|
}
|
|
checkFn(t, req)
|
|
}
|
|
|
|
// basic auth
|
|
f(func() *VMStorage {
|
|
cfg, err := utils.AuthConfig(utils.WithBasicAuth("foo", "bar", ""))
|
|
if err != nil {
|
|
t.Fatalf("Error get auth config: %s", err)
|
|
}
|
|
return &VMStorage{authCfg: cfg}
|
|
}, func(t *testing.T, r *http.Request) {
|
|
u, p, _ := r.BasicAuth()
|
|
checkEqualString(t, "foo", u)
|
|
checkEqualString(t, "bar", p)
|
|
})
|
|
|
|
// bearer auth
|
|
f(func() *VMStorage {
|
|
cfg, err := utils.AuthConfig(utils.WithBearer("foo", ""))
|
|
if err != nil {
|
|
t.Fatalf("Error get auth config: %s", err)
|
|
}
|
|
return &VMStorage{authCfg: cfg}
|
|
}, func(t *testing.T, r *http.Request) {
|
|
reqToken := r.Header.Get("Authorization")
|
|
splitToken := strings.Split(reqToken, "Bearer ")
|
|
if len(splitToken) != 2 {
|
|
t.Fatalf("expected two items got %d", len(splitToken))
|
|
}
|
|
token := splitToken[1]
|
|
checkEqualString(t, "foo", token)
|
|
})
|
|
|
|
// custom extraHeaders
|
|
f(func() *VMStorage {
|
|
return &VMStorage{extraHeaders: []keyValue{
|
|
{key: "Foo", value: "bar"},
|
|
{key: "Baz", value: "qux"},
|
|
}}
|
|
}, func(t *testing.T, r *http.Request) {
|
|
h1 := r.Header.Get("Foo")
|
|
checkEqualString(t, "bar", h1)
|
|
h2 := r.Header.Get("Baz")
|
|
checkEqualString(t, "qux", h2)
|
|
})
|
|
|
|
// custom header overrides basic auth
|
|
f(func() *VMStorage {
|
|
cfg, err := utils.AuthConfig(utils.WithBasicAuth("foo", "bar", ""))
|
|
if err != nil {
|
|
t.Fatalf("Error get auth config: %s", err)
|
|
}
|
|
return &VMStorage{
|
|
authCfg: cfg,
|
|
extraHeaders: []keyValue{
|
|
{key: "Authorization", value: "Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ=="},
|
|
},
|
|
}
|
|
}, func(t *testing.T, r *http.Request) {
|
|
u, p, _ := r.BasicAuth()
|
|
checkEqualString(t, "Aladdin", u)
|
|
checkEqualString(t, "open sesame", p)
|
|
})
|
|
}
|
|
|
|
func checkEqualString(t *testing.T, exp, got string) {
|
|
t.Helper()
|
|
|
|
if got != exp {
|
|
t.Fatalf("expected to get: \n%q; \ngot: \n%q", exp, got)
|
|
}
|
|
}
|
|
|
|
func expectError(t *testing.T, err error, exp string) {
|
|
t.Helper()
|
|
|
|
if err == nil {
|
|
t.Fatalf("expected non-nil error")
|
|
}
|
|
if !strings.Contains(err.Error(), exp) {
|
|
t.Fatalf("expected error %q to contain %q", err, exp)
|
|
}
|
|
}
|