github.com/hasnat/dolt/go@v0.0.0-20210628190320-9eb5d843fbb7/libraries/doltcore/schema/constraint_test.go (about)

     1  // Copyright 2019 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 schema
    16  
    17  import (
    18  	"testing"
    19  
    20  	"github.com/dolthub/dolt/go/store/types"
    21  )
    22  
    23  type TestConstraint struct {
    24  	params map[string]string
    25  }
    26  
    27  func (tc TestConstraint) SatisfiesConstraint(value types.Value) bool {
    28  	return true
    29  }
    30  
    31  func (tc TestConstraint) GetConstraintType() string {
    32  	return "test"
    33  }
    34  
    35  func (tc TestConstraint) GetConstraintParams() map[string]string {
    36  	return tc.params
    37  }
    38  
    39  func (tc TestConstraint) String() string {
    40  	return ""
    41  }
    42  
    43  func TestColConstraintsAreEqual(t *testing.T) {
    44  	tests := []struct {
    45  		constraints1 []ColConstraint
    46  		constraints2 []ColConstraint
    47  		expectedEq   bool
    48  	}{
    49  		{nil, nil, true},
    50  		{nil, []ColConstraint{}, true},
    51  		{[]ColConstraint{}, []ColConstraint{}, true},
    52  		{[]ColConstraint{NotNullConstraint{}}, []ColConstraint{NotNullConstraint{}}, true},
    53  		{[]ColConstraint{NotNullConstraint{}}, []ColConstraint{TestConstraint{}}, false},
    54  		{[]ColConstraint{TestConstraint{map[string]string{"a": "1", "b": "2"}}}, []ColConstraint{TestConstraint{}}, false},
    55  		{[]ColConstraint{TestConstraint{map[string]string{"a": "1", "b": "2"}}}, []ColConstraint{TestConstraint{map[string]string{"a": "1", "b": "2"}}}, true},
    56  		{[]ColConstraint{}, []ColConstraint{NotNullConstraint{}}, false},
    57  		{nil, []ColConstraint{NotNullConstraint{}}, false},
    58  	}
    59  
    60  	for i, test := range tests {
    61  		actualEq := ColConstraintsAreEqual(test.constraints1, test.constraints2)
    62  
    63  		if actualEq != test.expectedEq {
    64  			t.Error("test number:", i, "expected equality:", test.expectedEq, "actual equality:", actualEq)
    65  		}
    66  	}
    67  }