//  Copyright (c) 2020 Couchbase, 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 highlight

import (
	"testing"

	"github.com/blugelabs/bluge/search"
)

func TestSimpleFragmentScorer(t *testing.T) {
	tests := []struct {
		fragment *Fragment
		tlm      search.TermLocationMap
		score    float64
	}{
		{
			fragment: &Fragment{
				Orig:  []byte("cat in the hat"),
				Start: 0,
				End:   14,
			},
			tlm: search.TermLocationMap{
				"cat": []*search.Location{
					{
						Pos:   0,
						Start: 0,
						End:   3,
					},
				},
			},
			score: 1,
		},
		{
			fragment: &Fragment{
				Orig:  []byte("cat in the hat"),
				Start: 0,
				End:   14,
			},
			tlm: search.TermLocationMap{
				"cat": []*search.Location{
					{
						Pos:   1,
						Start: 0,
						End:   3,
					},
				},
				"hat": []*search.Location{
					{
						Pos:   4,
						Start: 11,
						End:   14,
					},
				},
			},
			score: 2,
		},
	}

	for _, test := range tests {
		scorer := NewFragmentScorer(test.tlm)
		scorer.Score(test.fragment)
		if test.fragment.Score != test.score {
			t.Errorf("expected score %f, got %f", test.score, test.fragment.Score)
		}
	}
}
