2022-01-01 15:11:49 +00:00
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package reqlog_test
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2022-01-21 10:45:54 +00:00
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//go:generate go run github.com/matryer/moq -out repo_mock_test.go -pkg reqlog_test . Repository:RepoMock
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import (
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"context"
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"io"
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"math/rand"
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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"github.com/oklog/ulid"
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"github.com/dstotijn/hetty/pkg/proxy"
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"github.com/dstotijn/hetty/pkg/reqlog"
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"github.com/dstotijn/hetty/pkg/scope"
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)
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2022-01-21 10:45:54 +00:00
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//nolint:gosec
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var ulidEntropy = rand.New(rand.NewSource(time.Now().UnixNano()))
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//nolint:paralleltest
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func TestRequestModifier(t *testing.T) {
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repoMock := &RepoMock{
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StoreRequestLogFunc: func(_ context.Context, _ reqlog.RequestLog) error {
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return nil
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},
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}
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svc := reqlog.NewService(reqlog.Config{
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Repository: repoMock,
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Scope: &scope.Scope{},
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})
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2022-02-22 13:10:39 +00:00
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svc.SetActiveProjectID(ulid.MustNew(ulid.Timestamp(time.Now()), ulidEntropy))
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next := func(req *http.Request) {
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req.Body = io.NopCloser(strings.NewReader("modified body"))
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}
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reqModFn := svc.RequestModifier(next)
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req := httptest.NewRequest("GET", "https://example.com/", strings.NewReader("bar"))
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2022-03-23 13:31:27 +00:00
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reqID := ulid.MustNew(ulid.Timestamp(time.Now()), ulidEntropy)
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req = req.WithContext(proxy.WithRequestID(req.Context(), reqID))
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reqModFn(req)
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t.Run("request log was stored in repository", func(t *testing.T) {
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gotCount := len(repoMock.StoreRequestLogCalls())
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if expCount := 1; expCount != gotCount {
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t.Fatalf("incorrect `proj.Service.AddRequestLog` calls (expected: %v, got: %v)", expCount, gotCount)
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}
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exp := reqlog.RequestLog{
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ID: ulid.ULID{}, // Empty value
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ProjectID: svc.ActiveProjectID(),
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Method: req.Method,
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URL: req.URL,
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Proto: req.Proto,
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Header: req.Header,
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Body: []byte("modified body"),
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}
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got := repoMock.StoreRequestLogCalls()[0].ReqLog
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got.ID = ulid.ULID{} // Override to empty value so we can compare against expected value.
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if diff := cmp.Diff(exp, got); diff != "" {
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t.Fatalf("request log not equal (-exp, +got):\n%v", diff)
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}
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})
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}
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//nolint:paralleltest
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func TestResponseModifier(t *testing.T) {
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repoMock := &RepoMock{
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StoreResponseLogFunc: func(_ context.Context, _ ulid.ULID, _ reqlog.ResponseLog) error {
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return nil
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},
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}
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svc := reqlog.NewService(reqlog.Config{
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Repository: repoMock,
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})
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svc.SetActiveProjectID(ulid.MustNew(ulid.Timestamp(time.Now()), ulidEntropy))
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next := func(res *http.Response) error {
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res.Body = io.NopCloser(strings.NewReader("modified body"))
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return nil
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}
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resModFn := svc.ResponseModifier(next)
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req := httptest.NewRequest("GET", "https://example.com/", strings.NewReader("bar"))
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reqLogID := ulid.MustNew(ulid.Timestamp(time.Now()), ulidEntropy)
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req = req.WithContext(context.WithValue(req.Context(), reqlog.ReqLogIDKey, reqLogID))
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res := &http.Response{
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Request: req,
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Body: io.NopCloser(strings.NewReader("bar")),
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}
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if err := resModFn(res); err != nil {
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t.Fatalf("unexpected error (expected: nil, got: %v)", err)
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}
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t.Run("request log was stored in repository", func(t *testing.T) {
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// Dirty (but simple) wait for other goroutine to finish calling repository.
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time.Sleep(10 * time.Millisecond)
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got := len(repoMock.StoreResponseLogCalls())
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if exp := 1; exp != got {
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t.Fatalf("incorrect `proj.Service.AddResponseLog` calls (expected: %v, got: %v)", exp, got)
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}
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t.Run("ran next modifier first, before calling repository", func(t *testing.T) {
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got := repoMock.StoreResponseLogCalls()[0].ResLog.Body
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if exp := "modified body"; exp != string(got) {
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t.Fatalf("incorrect `ResponseLog.Body` value (expected: %v, got: %v)", exp, string(got))
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}
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})
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t.Run("called repository with request log id", func(t *testing.T) {
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got := repoMock.StoreResponseLogCalls()[0].ReqLogID
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if exp := reqLogID; exp.Compare(got) != 0 {
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2022-02-28 15:21:01 +00:00
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t.Fatalf("incorrect `reqLogID` argument for `Repository.AddResponseLogCalls` (expected: %v, got: %v)",
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exp.String(), got.String())
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}
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})
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})
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}
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