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Add required tests for go/unicode2
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Signed-off-by: Noble Mittal <[email protected]>
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@beingnoble03
beingnoble03 committed Jan 27, 2024
1 parent 2162883 commit e9cc8d0
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2 changes: 1 addition & 1 deletion go/unicode2/unicode.go
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Original file line number Diff line number Diff line change
Expand Up @@ -117,7 +117,7 @@ func sortIter(t []tableIndex) {
}
}

// next16 finds the ranged to be added to the table. If ranges overlap between
// next16 finds the range to be added to the table. If ranges overlap between
// multiple tables it clips the result to a non-overlapping range if the
// elements are not fully subsumed. It returns a zero range if there are no more
// ranges.
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267 changes: 267 additions & 0 deletions go/unicode2/unicode_test.go
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@@ -0,0 +1,267 @@
/*
Copyright 2024 The Vitess Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package unicode2

import (
"testing"
"unicode"

"github.com/stretchr/testify/assert"
)

func TestMerge(t *testing.T) {
// Test for no range tables
rt := Merge()
assert.Equal(t, &unicode.RangeTable{}, rt)

testCases := []struct {
rt1 *unicode.RangeTable
rt2 *unicode.RangeTable
expected *unicode.RangeTable
}{
{
rt1: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 67, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 2000, Stride: 1},
},
},
rt2: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 68, Hi: 71, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 2001, Hi: 3000, Stride: 1},
},
},
expected: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 71, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 3000, Stride: 1},
},
LatinOffset: 1,
},
},
{
rt1: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 70, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 2100, Stride: 1},
},
},
rt2: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 68, Hi: 72, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 2000, Hi: 3100, Stride: 1},
},
},
expected: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 72, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 3100, Stride: 1},
},
LatinOffset: 1,
},
},
{
rt1: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 65, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 1000, Stride: 1},
},
},
rt2: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 70, Hi: 70, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 2000, Hi: 2001, Stride: 1},
},
},
expected: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 70, Stride: 5},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 1000, Stride: 1},
{Lo: 2000, Hi: 2001, Stride: 1},
},
LatinOffset: 1,
},
},
{
rt1: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 65, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 1000, Stride: 1},
},
},
rt2: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 70, Hi: 71, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 2000, Hi: 2000, Stride: 1},
},
},
expected: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 65, Stride: 1},
{Lo: 70, Hi: 71, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 2000, Stride: 1000},
},
LatinOffset: 2,
},
},
{
rt1: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 68, Stride: 1},
{Lo: 100, Hi: 104, Stride: 2},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 1004, Stride: 1},
},
},
rt2: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 69, Hi: 75, Stride: 2},
},
R32: []unicode.Range32{
{Lo: 1005, Hi: 2000, Stride: 2},
{Lo: 2003, Hi: 2006, Stride: 3},
},
},
expected: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 69, Stride: 1},
{Lo: 71, Hi: 75, Stride: 2},
{Lo: 100, Hi: 104, Stride: 2},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 1005, Stride: 1},
{Lo: 1007, Hi: 2000, Stride: 2},
{Lo: 2003, Hi: 2006, Stride: 3},
},
LatinOffset: 3,
},
},
{
rt1: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 78, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 2000, Stride: 1},
},
},
rt2: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 75, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 1500, Stride: 1},
},
},
expected: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 78, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 2000, Stride: 1},
},
LatinOffset: 1,
},
},
{
rt1: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 78, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 2000, Stride: 1},
},
},
rt2: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 75, Stride: 8},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 1500, Stride: 3},
},
},
expected: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 78, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 2000, Stride: 1},
},
LatinOffset: 1,
},
},
{
rt1: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 78, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 1500, Stride: 1},
},
},
rt2: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 79, Hi: 84, Stride: 8},
},
R32: []unicode.Range32{
{Lo: 1501, Hi: 2000, Stride: 500},
},
},
expected: &unicode.RangeTable{
R16: []unicode.Range16{
{Lo: 65, Hi: 79, Stride: 1},
},
R32: []unicode.Range32{
{Lo: 1000, Hi: 1501, Stride: 1},
},
LatinOffset: 1,
},
},
}

for _, tc := range testCases {
rt := Merge(tc.rt1, tc.rt2)

assert.Equal(t, tc.expected, rt)
}
}

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