github.com/google/trillian-examples@v0.0.0-20240520080811-0d40d35cef0e/binary_transparency/firmware/cmd/ft_witness/internal/ws/store_test.go (about)

     1  // Copyright 2021 Google LLC. 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 ws
    16  
    17  import (
    18  	"bytes"
    19  	"fmt"
    20  	"path/filepath"
    21  	"testing"
    22  )
    23  
    24  const undefFp = ""
    25  
    26  func TestRoundTrip(t *testing.T) {
    27  	for _, test := range []struct {
    28  		desc string
    29  		data []byte
    30  	}{
    31  		{
    32  			desc: "initial checkpoint test",
    33  			data: []byte("some checkpoint"),
    34  		}, {
    35  			desc: "check over-write of checkpoint",
    36  			data: []byte("some more checkpoint"),
    37  		},
    38  	} {
    39  		dbFP := filepath.Join(t.TempDir(), "db")
    40  		t.Run(test.desc, func(t *testing.T) {
    41  			store, err := NewStorage(dbFP)
    42  			if err != nil {
    43  				t.Error("failed to create storage", err)
    44  			}
    45  			want := test.data
    46  			if err := store.StoreCP(test.data); err != nil {
    47  				t.Error("failed to store into Witness Store", err)
    48  			}
    49  			got, err := store.RetrieveCP()
    50  			if err != nil {
    51  				t.Error("failed to retrieve from Witness Store", err)
    52  			}
    53  			if !bytes.Equal(got, want) {
    54  				t.Errorf("got '%s' want '%s'", got, want)
    55  			}
    56  
    57  		})
    58  	}
    59  }
    60  
    61  func TestFailedStorage(t *testing.T) {
    62  	for _, test := range []struct {
    63  		desc      string
    64  		wantError string
    65  	}{
    66  		{
    67  			desc:      "Handle Storage failure",
    68  			wantError: "failed to open file: open : no such file or directory",
    69  		},
    70  	} {
    71  		t.Run(test.desc, func(t *testing.T) {
    72  			_, err := NewStorage(undefFp)
    73  			if err == nil {
    74  				t.Error("Unexpected success in storage creation", err)
    75  			}
    76  			fmt.Printf("Received Error = %s", err.Error())
    77  			if err.Error() != test.wantError {
    78  				t.Error("Unexpected error message received", err)
    79  			}
    80  		})
    81  	}
    82  }