github.com/mre-fog/trillianxx@v1.1.2-0.20180615153820-ae375a99d36a/server/errors/errors_test.go (about)

     1  // Copyright 2017 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package errors
    16  
    17  import (
    18  	"database/sql"
    19  	"errors"
    20  	"testing"
    21  
    22  	_ "github.com/golang/glog"
    23  	"github.com/kylelemons/godebug/pretty"
    24  	"google.golang.org/grpc/codes"
    25  	"google.golang.org/grpc/status"
    26  )
    27  
    28  func TestWrapError(t *testing.T) {
    29  	grpcErr := status.Errorf(codes.NotFound, "not found err")
    30  	err := errors.New("generic error")
    31  
    32  	tests := []struct {
    33  		err     error
    34  		wantErr error
    35  	}{
    36  		{
    37  			err:     grpcErr,
    38  			wantErr: grpcErr,
    39  		},
    40  		{
    41  			err:     err,
    42  			wantErr: err,
    43  		},
    44  		{
    45  			err:     sql.ErrNoRows,
    46  			wantErr: status.Errorf(codes.NotFound, sql.ErrNoRows.Error()),
    47  		},
    48  	}
    49  	for _, test := range tests {
    50  		// We can't use == for rpcErrors because grpc.Errorf returns *rpcError.
    51  		if diff := pretty.Compare(WrapError(test.err), test.wantErr); diff != "" {
    52  			t.Errorf("WrapError('%T') diff:\n%s", test.err, diff)
    53  		}
    54  	}
    55  }