fake_test.go

Documentation: cloud.google.com/go/logging/internal/testing

     1  /*
     2  Copyright 2016 Google LLC
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  // This file contains only basic checks. The fake is effectively tested by the
    18  // logging client unit tests.
    19  
    20  package testing
    21  
    22  import (
    23  	"testing"
    24  	"time"
    25  
    26  	logpb "cloud.google.com/go/logging/apiv2/loggingpb"
    27  	grpc "google.golang.org/grpc"
    28  	"google.golang.org/protobuf/proto"
    29  	tspb "google.golang.org/protobuf/types/known/timestamppb"
    30  )
    31  
    32  func TestNewServer(t *testing.T) {
    33  	// Confirm that we can create and use a working gRPC server.
    34  	addr, err := NewServer()
    35  	if err != nil {
    36  		t.Fatal(err)
    37  	}
    38  	conn, err := grpc.Dial(addr, grpc.WithInsecure())
    39  	if err != nil {
    40  		t.Fatal(err)
    41  	}
    42  	// Avoid "connection is closing; please retry" message from gRPC.
    43  	time.Sleep(300 * time.Millisecond)
    44  	conn.Close()
    45  }
    46  
    47  func TestParseFilter(t *testing.T) {
    48  	for _, test := range []struct {
    49  		filter  string
    50  		want    string
    51  		wantErr bool
    52  	}{
    53  		{"", "", false},
    54  		{"logName = syslog", "syslog", false},
    55  		{"logname = syslog", "", true},
    56  		{"logName = 'syslog'", "", true},
    57  		{"logName == syslog", "", true},
    58  	} {
    59  		got, err := parseFilter(test.filter)
    60  		if err != nil {
    61  			if !test.wantErr {
    62  				t.Errorf("%q: got %v, want no error", test.filter, err)
    63  			}
    64  			continue
    65  		}
    66  		if test.wantErr {
    67  			t.Errorf("%q: got no error, want one", test.filter)
    68  			continue
    69  		}
    70  		if got != test.want {
    71  			t.Errorf("%q: got %q, want %q", test.filter, got, test.want)
    72  		}
    73  	}
    74  }
    75  
    76  func TestSortEntries(t *testing.T) {
    77  	entries := []*logpb.LogEntry{
    78  		/* 0 */ {Timestamp: &tspb.Timestamp{Seconds: 30}},
    79  		/* 1 */ {Timestamp: &tspb.Timestamp{Seconds: 10}},
    80  		/* 2 */ {Timestamp: &tspb.Timestamp{Seconds: 20}, InsertId: "b"},
    81  		/* 3 */ {Timestamp: &tspb.Timestamp{Seconds: 20}, InsertId: "a"},
    82  		/* 4 */ {Timestamp: &tspb.Timestamp{Seconds: 20}, InsertId: "c"},
    83  	}
    84  	for _, test := range []struct {
    85  		orderBy string
    86  		want    []int // slice of index into entries; nil == error
    87  	}{
    88  		{"", []int{1, 3, 2, 4, 0}},
    89  		{"timestamp asc", []int{1, 3, 2, 4, 0}},
    90  		{"timestamp desc", []int{0, 4, 2, 3, 1}},
    91  		{"something else", nil},
    92  	} {
    93  		got := make([]*logpb.LogEntry, len(entries))
    94  		copy(got, entries)
    95  		err := sortEntries(got, test.orderBy)
    96  		if err != nil {
    97  			if test.want != nil {
    98  				t.Errorf("%q: got %v, want nil error", test.orderBy, err)
    99  			}
   100  			continue
   101  		}
   102  		want := make([]*logpb.LogEntry, len(entries))
   103  		for i, j := range test.want {
   104  			want[i] = entries[j]
   105  		}
   106  		if !logEntriesEqual(got, want) {
   107  			t.Errorf("%q: got %v, want %v", test.orderBy, got, want)
   108  		}
   109  	}
   110  }
   111  
   112  func logEntriesEqual(a, b []*logpb.LogEntry) bool {
   113  	if len(a) != len(b) {
   114  		return false
   115  	}
   116  	for i, aa := range a {
   117  		if !proto.Equal(aa, b[i]) {
   118  			return false
   119  		}
   120  	}
   121  	return true
   122  }
   123
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