120 lines
2.8 KiB
Go
120 lines
2.8 KiB
Go
// Copyright 2017 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tokenizer
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import (
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"reflect"
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"testing"
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)
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func TestTokenizer_Tokenize(t *testing.T) {
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tests := []struct {
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text string
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want Tokens
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}{
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{
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text: "Tokenize",
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want: Tokens{&token{Text: "Tokenize", Offset: 0}},
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},
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{
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text: "Hello world",
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want: Tokens{
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&token{Text: "Hello", Offset: 0},
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&token{Text: "world", Offset: 6},
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},
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},
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{
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text: `Goodnight,
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Irene
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`,
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want: Tokens{
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&token{Text: "Goodnight", Offset: 0},
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&token{Text: ",", Offset: 9},
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&token{Text: "Irene", Offset: 11},
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},
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},
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{
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text: "Copyright © 2017 Yoyodyne, Inc.",
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want: Tokens{
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&token{Text: "Copyright", Offset: 0},
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&token{Text: "©", Offset: 10},
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&token{Text: "2017", Offset: 13},
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&token{Text: "Yoyodyne", Offset: 18},
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&token{Text: ",", Offset: 26},
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&token{Text: "Inc", Offset: 28},
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&token{Text: ".", Offset: 31},
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},
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},
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}
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for _, tt := range tests {
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if got := Tokenize(tt.text); !reflect.DeepEqual(got, tt.want) {
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t.Errorf("Tokenize(%q) = %+v, want %+v", tt.text, got, tt.want)
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}
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}
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}
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func TestTokenizer_GenerateHashes(t *testing.T) {
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tests := []struct {
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text string
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sizeFactor int
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wantHash []uint32
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wantRanges TokenRanges
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}{
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{
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text: "",
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sizeFactor: 1,
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wantHash: nil,
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wantRanges: nil,
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},
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{
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text: "Hashes",
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sizeFactor: 1,
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wantHash: []uint32{408116689},
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wantRanges: TokenRanges{{Start: 0, End: 1}},
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},
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{
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text: "hello world",
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sizeFactor: 1,
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wantHash: []uint32{222957957},
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wantRanges: TokenRanges{{Start: 0, End: 2}},
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},
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{
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text: "Copyright © 2017 Yoyodyne, Inc.",
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sizeFactor: 3,
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wantHash: []uint32{2473816729, 966085113, 3025678301, 3199087486, 850352802, 1274745089},
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wantRanges: TokenRanges{
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{Start: 0, End: 2},
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{Start: 1, End: 3},
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{Start: 2, End: 4},
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{Start: 3, End: 5},
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{Start: 4, End: 6},
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{Start: 5, End: 7},
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},
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},
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}
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for _, tt := range tests {
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hash := make(Hash)
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toks := Tokenize(tt.text)
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h, tr := toks.GenerateHashes(hash, len(toks)/tt.sizeFactor)
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if !reflect.DeepEqual(h, tt.wantHash) {
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t.Errorf("GenerateHashes(hash) = %v, want %v", h, tt.wantHash)
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}
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if !reflect.DeepEqual(tr, tt.wantRanges) {
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t.Errorf("GenerateHashes(ranges) = %v, want %v", tr, tt.wantRanges)
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}
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}
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}
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