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// Copyright 2020 Google Inc.
//
// 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 classifier
import "testing"
func TestTokenSimilarity(t *testing.T) {
tests := []struct {
name string
a, b string
sim float64
}{
{
name: "identical match",
a: "this text is the same in both scenarios",
b: "this text is the same in both scenarios",
sim: 1.0,
},
{
name: "no match",
a: "this text is the same in both scenarios",
b: "completely different stuff here",
sim: 0.0,
},
{
name: "half match",
a: "this text is one sample sentence",
b: "that text is some different sample",
sim: 0.5,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
c := NewClassifier(.8) // This value doesn't affect the test.
c.AddContent("", "b", "", []byte(test.b))
a := c.createTargetIndexedDocument([]byte(test.a))
if actual := a.tokenSimilarity(c.getIndexedDocument("", "b", "")); actual != test.sim {
t.Errorf("got %v want %v", actual, test.sim)
}
})
}
}
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