github.com/coreos/mantle@v0.13.0/storage/object_test.go (about)

     1  // Copyright 2016 CoreOS, Inc.
     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 storage
    16  
    17  import (
    18  	"strings"
    19  	"testing"
    20  
    21  	"google.golang.org/api/storage/v1"
    22  )
    23  
    24  const (
    25  	testPage = `<html><head>
    26  <meta http-equiv="refresh" content="0;url=amd64-usr/">
    27  </head></html>
    28  `
    29  	testPageCRC  = "xH9jaw=="
    30  	testPageMD5  = "2a6rirkVBEsl0bzTOzNtzA=="
    31  	testPageSize = 83
    32  )
    33  
    34  func TestSortObjects(t *testing.T) {
    35  	slice := []*storage.Object{
    36  		&storage.Object{Name: "a2"},
    37  		&storage.Object{Name: "a10"},
    38  		&storage.Object{Name: "a1"},
    39  	}
    40  	SortObjects(slice)
    41  	if slice[0].Name != "a1" ||
    42  		slice[1].Name != "a2" ||
    43  		slice[2].Name != "a10" {
    44  		t.Errorf("Undexpected order: %#v", slice)
    45  	}
    46  }
    47  
    48  func TestCRCSum(t *testing.T) {
    49  	obj := storage.Object{}
    50  	if err := crcSum(&obj, strings.NewReader(testPage)); err != nil {
    51  		t.Fatal(err)
    52  	}
    53  	if obj.Crc32c != testPageCRC {
    54  		t.Errorf("Bad CRC32c: %q != %q", obj.Crc32c, testPageCRC)
    55  	}
    56  	if obj.Size != testPageSize {
    57  		t.Errorf("Bad Size: %d != %d", obj.Size, testPageSize)
    58  	}
    59  }
    60  
    61  func TestCRCEq(t *testing.T) {
    62  	obj := storage.Object{Crc32c: testPageCRC, Size: testPageSize}
    63  	if crcEq(&obj, nil) {
    64  		t.Errorf("%#v equal to nil", obj)
    65  	}
    66  	if crcEq(nil, &obj) {
    67  		t.Errorf("nil equal to %#v", obj)
    68  	}
    69  	if crcEq(nil, nil) {
    70  		t.Error("nil not equal to nil")
    71  	}
    72  	if crcEq(&obj, &storage.Object{Crc32c: testPageCRC}) {
    73  		t.Errorf("%#v equal ignored size", obj)
    74  	}
    75  	if crcEq(&obj, &storage.Object{Size: testPageSize}) {
    76  		t.Errorf("%#v equal ignored blank CRC", obj)
    77  	}
    78  	if !crcEq(&obj, &obj) {
    79  		t.Errorf("%#v not equal to itself", obj)
    80  	}
    81  }
    82  
    83  func TestCRCSumAndEq(t *testing.T) {
    84  	var a, b storage.Object
    85  	r := strings.NewReader(testPage) // reading twice should work
    86  	if err := crcSum(&a, r); err != nil {
    87  		t.Fatal(err)
    88  	}
    89  	r.Seek(0, 0)
    90  	if err := crcSum(&b, r); err != nil {
    91  		t.Fatal(err)
    92  	}
    93  	if !crcEq(&a, &b) {
    94  		t.Errorf("%#v not equal to %#v", a, b)
    95  	}
    96  	c := storage.Object{Crc32c: testPageCRC, Size: testPageSize}
    97  	if !crcEq(&a, &c) {
    98  		t.Errorf("%#v not equal to %#v", a, c)
    99  	}
   100  }