vitess.io/vitess@v0.16.2/go/vt/vtgate/planbuilder/expr_test.go (about)

     1  /*
     2  Copyright 2019 The Vitess Authors.
     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  package planbuilder
    18  
    19  import (
    20  	"testing"
    21  
    22  	"vitess.io/vitess/go/vt/sqlparser"
    23  )
    24  
    25  func TestValEqual(t *testing.T) {
    26  	c1 := &column{}
    27  	c2 := &column{}
    28  	testcases := []struct {
    29  		in1, in2 sqlparser.Expr
    30  		out      bool
    31  	}{{
    32  		in1: &sqlparser.ColName{Metadata: c1, Name: sqlparser.NewIdentifierCI("c1")},
    33  		in2: &sqlparser.ColName{Metadata: c1, Name: sqlparser.NewIdentifierCI("c1")},
    34  		out: true,
    35  	}, {
    36  		// Objects that have the same name need not be the same because
    37  		// they might have appeared in different scopes and could have
    38  		// resolved to different columns.
    39  		in1: &sqlparser.ColName{Metadata: c1, Name: sqlparser.NewIdentifierCI("c1")},
    40  		in2: &sqlparser.ColName{Metadata: c2, Name: sqlparser.NewIdentifierCI("c1")},
    41  		out: false,
    42  	}, {
    43  		in1: sqlparser.NewArgument("aa"),
    44  		in2: &sqlparser.ColName{Metadata: c1, Name: sqlparser.NewIdentifierCI("c1")},
    45  		out: false,
    46  	}, {
    47  		in1: sqlparser.NewArgument("aa"),
    48  		in2: sqlparser.NewArgument("aa"),
    49  		out: true,
    50  	}, {
    51  		in1: sqlparser.NewArgument("aa"),
    52  		in2: sqlparser.NewArgument("bb"),
    53  	}, {
    54  		in1: sqlparser.NewStrLiteral("aa"),
    55  		in2: sqlparser.NewStrLiteral("aa"),
    56  		out: true,
    57  	}, {
    58  		in1: sqlparser.NewStrLiteral("11"),
    59  		in2: sqlparser.NewHexLiteral("3131"),
    60  		out: true,
    61  	}, {
    62  		in1: sqlparser.NewHexLiteral("3131"),
    63  		in2: sqlparser.NewStrLiteral("11"),
    64  		out: true,
    65  	}, {
    66  		in1: sqlparser.NewHexLiteral("3131"),
    67  		in2: sqlparser.NewHexLiteral("3131"),
    68  		out: true,
    69  	}, {
    70  		in1: sqlparser.NewHexLiteral("3131"),
    71  		in2: sqlparser.NewHexLiteral("3132"),
    72  		out: false,
    73  	}, {
    74  		in1: sqlparser.NewHexLiteral("313"),
    75  		in2: sqlparser.NewHexLiteral("3132"),
    76  		out: false,
    77  	}, {
    78  		in1: sqlparser.NewHexLiteral("3132"),
    79  		in2: sqlparser.NewHexLiteral("313"),
    80  		out: false,
    81  	}, {
    82  		in1: sqlparser.NewIntLiteral("313"),
    83  		in2: sqlparser.NewHexLiteral("3132"),
    84  		out: false,
    85  	}, {
    86  		in1: sqlparser.NewHexLiteral("3132"),
    87  		in2: sqlparser.NewIntLiteral("313"),
    88  		out: false,
    89  	}, {
    90  		in1: sqlparser.NewIntLiteral("313"),
    91  		in2: sqlparser.NewIntLiteral("313"),
    92  		out: true,
    93  	}, {
    94  		in1: sqlparser.NewIntLiteral("313"),
    95  		in2: sqlparser.NewIntLiteral("314"),
    96  		out: false,
    97  	}}
    98  	for _, tc := range testcases {
    99  		out := valEqual(tc.in1, tc.in2)
   100  		if out != tc.out {
   101  			t.Errorf("valEqual(%#v, %#v): %v, want %v", tc.in1, tc.in2, out, tc.out)
   102  		}
   103  	}
   104  }