REST API: test error response for /v1/pems.

pkg/rest/allpems_handler_test.go

@@ -83,6 +83,15 @@ var (
 		ModTime:         time.Date(2020, 7, 27, 9, 51, 0, 0, time.UTC),
 	}
 
+	invalidFile = &pem.File{
+		Namespace:       "invalid",
+		Name:            "crt",
+		UID:             "9396fc87-23eb-480a-8437-f9767df13ed8",
+		ResourceVersion: "123456",
+		Size:            132,
+		ModTime:         time.Date(2020, 7, 28, 6, 9, 0, 0, time.UTC),
+	}
+
 	expWhiskeyCrt = pem.Crt{
 		Version: 3,
 		SN:      "2f:6d:d8:e4:83:f0:e7:44:4d:3a:cc:97:52:0e:18:93:d7:a5:1f:0d",
@@ -325,6 +334,47 @@ func TestAllPems(t *testing.T) {
 	if len(allInfo) != 0 {
 		t.Fatalf("GET /v1/pems len(slice) got %d want 0", len(allInfo))
 	}
+
+	files.Files["invalid/crt"] = invalidFile
+	req = httptest.NewRequest(http.MethodGet, "/v1/pems", nil)
+	rr = httptest.NewRecorder()
+	hndlr.ServeHTTP(rr, req)
+	if rr.Code != http.StatusInternalServerError {
+		t.Errorf("GET /v1/pems status: got %d want %d", rr.Code,
+			http.StatusInternalServerError)
+	}
+	if rr.Header().Get("Content-Type") != problemContentType {
+		t.Errorf("GET /v1/pems Content-Type: got %s want %s",
+			rr.Header().Get("Content-Type"), problemContentType)
+	}
+	bodylen := len(rr.Body.String())
+	if rr.Header().Get("Content-Length") != strconv.Itoa(bodylen) {
+		t.Errorf("GET /v1/pems Content-Length: got %s want %d",
+			rr.Header().Get("Content-Length"), bodylen)
+	}
+	problem := &Problem{}
+	if err = json.Unmarshal(rr.Body.Bytes(), problem); err != nil {
+		t.Fatalf("GET /v1/pems body unmarshal: %v", err)
+	}
+	if problem.Type != errPemsReadErr.Type {
+		t.Errorf("GET /v1/pems problem type: got %s want %s",
+			problem.Type, errPemsReadErr.Type)
+	}
+	if problem.Title != errPemsReadErr.Title {
+		t.Errorf("GET /v1/pems problem title: got %s want %s",
+			problem.Title, errPemsReadErr.Title)
+	}
+	if len(problem.Detail) == 0 {
+		t.Error("GET /v1/pems problem detail empty")
+	}
+	if problem.Status != http.StatusInternalServerError {
+		t.Errorf("GET /v1/pems problem status: got %d want %d",
+			problem.Status, http.StatusInternalServerError)
+	}
+	if !errInstancePattern.Match([]byte(problem.Instance)) {
+		t.Errorf("GET /v1/pems problem instance: "+
+			"got %s want /log/errors/N", problem.Instance)
+	}
 }
 
 func TestAllPems405(t *testing.T) {