minio/pkg/words/damerau-levenshtein_test.go

67 lines
2.0 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package words
import (
"math"
"testing"
)
// Test minimum function which calculates the minimal value in a list of integers
func TestMinimum(t *testing.T) {
type testCase struct {
listval []int
expected int
}
testCases := []testCase{
{listval: []int{3, 4, 15}, expected: 3},
{listval: []int{}, expected: math.MaxInt32},
}
// Validate all the test cases.
for i, tt := range testCases {
val := minimum(tt.listval)
if val != tt.expected {
t.Errorf("Test %d:, Expected %d, got %d", i+1, tt.expected, val)
}
}
}
// Test DamerauLevenshtein which calculates the difference distance between two words
func TestDamerauLevenshtein(t *testing.T) {
type testCase struct {
word1 string
word2 string
distance int
}
testCases := []testCase{
{word1: "", word2: "", distance: 0},
{word1: "a", word2: "a", distance: 0},
{word1: "a", word2: "b", distance: 1},
{word1: "rm", word2: "tm", distance: 1},
{word1: "version", word2: "evrsion", distance: 1},
{word1: "version", word2: "bersio", distance: 2},
}
// Validate all the test cases.
for i, tt := range testCases {
d := DamerauLevenshteinDistance(tt.word1, tt.word2)
if d != tt.distance {
t.Errorf("Test %d:, Expected %d, got %d", i+1, tt.distance, d)
}
}
}