github.com/dolthub/go-mysql-server@v0.18.0/sql/collations_test.go (about)

     1  // Copyright 2020-2021 Dolthub, 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 sql
    16  
    17  import (
    18  	"fmt"
    19  	"testing"
    20  
    21  	"github.com/stretchr/testify/assert"
    22  	"github.com/stretchr/testify/require"
    23  )
    24  
    25  func TestParseCollation(t *testing.T) {
    26  	tests := []struct {
    27  		charset           string
    28  		collation         string
    29  		binaryAttribute   bool
    30  		expectedCollation CollationID
    31  		expectedErr       bool
    32  	}{
    33  		{"", "", false, Collation_Unspecified, false},
    34  		{"", "", true, Collation_Unspecified, false},
    35  		{CharacterSet_big5.String(), "", false, CharacterSet_big5.DefaultCollation(), false},
    36  		{CharacterSet_eucjpms.String(), "", true, CharacterSet_eucjpms.BinaryCollation(), false},
    37  		{"", Collation_big5_chinese_ci.String(), false, Collation_big5_chinese_ci, false},
    38  		{"", Collation_armscii8_general_ci.String(), true, Collation_armscii8_bin, false},
    39  		{CharacterSet_sjis.String(), Collation_sjis_japanese_ci.String(), false, Collation_sjis_japanese_ci, false},
    40  		{CharacterSet_gbk.String(), Collation_gbk_chinese_ci.String(), true, Collation_gbk_chinese_ci, false},
    41  
    42  		{CharacterSet_armscii8.String(), Collation_cp1251_bin.String(), false, Collation_Default, true},
    43  		{CharacterSet_eucjpms.String(), Collation_latin5_turkish_ci.String(), false, Collation_Default, true},
    44  		{CharacterSet_binary.String(), Collation_utf8_bin.String(), false, Collation_Default, true},
    45  	}
    46  
    47  	for _, test := range tests {
    48  		if test.charset == "" {
    49  			testParseCollation(t, nil, &test.collation, test.binaryAttribute, test.expectedCollation, test.expectedErr)
    50  		}
    51  		if test.collation == "" {
    52  			testParseCollation(t, &test.charset, nil, test.binaryAttribute, test.expectedCollation, test.expectedErr)
    53  		}
    54  		if test.charset == "" && test.collation == "" {
    55  			testParseCollation(t, nil, nil, test.binaryAttribute, test.expectedCollation, test.expectedErr)
    56  		}
    57  		testParseCollation(t, &test.charset, &test.collation, test.binaryAttribute, test.expectedCollation, test.expectedErr)
    58  	}
    59  }
    60  
    61  func testParseCollation(t *testing.T, charset *string, collation *string, binaryAttribute bool, expectedCollation CollationID, expectedErr bool) {
    62  	t.Run(fmt.Sprintf("%v %v %v", charset, collation, binaryAttribute), func(t *testing.T) {
    63  		col, err := ParseCollation(charset, collation, binaryAttribute)
    64  		if expectedErr {
    65  			assert.Error(t, err)
    66  		} else {
    67  			require.NoError(t, err)
    68  			assert.True(t, expectedCollation.Equals(col))
    69  		}
    70  	})
    71  }