1 files changed, 119 insertions, 0 deletions
diff --git a/stringclassifier/searchset/tokenizer/tokenizer_test.go b/stringclassifier/searchset/tokenizer/tokenizer_test.go
new file mode 100644
index 0000000..d058e3f
--- /dev/null
+++ b/stringclassifier/searchset/tokenizer/tokenizer_test.go
@@ -0,0 +1,119 @@
+// Copyright 2017 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 tokenizer
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestTokenizer_Tokenize(t *testing.T) {
+	tests := []struct {
+		text string
+		want Tokens
+	}{
+		{
+			text: "Tokenize",
+			want: Tokens{&token{Text: "Tokenize", Offset: 0}},
+		},
+		{
+			text: "Hello world",
+			want: Tokens{
+				&token{Text: "Hello", Offset: 0},
+				&token{Text: "world", Offset: 6},
+			},
+		},
+		{
+			text: `Goodnight,
+Irene
+`,
+			want: Tokens{
+				&token{Text: "Goodnight", Offset: 0},
+				&token{Text: ",", Offset: 9},
+				&token{Text: "Irene", Offset: 11},
+			},
+		},
+		{
+			text: "Copyright © 2017 Yoyodyne, Inc.",
+			want: Tokens{
+				&token{Text: "Copyright", Offset: 0},
+				&token{Text: "©", Offset: 10},
+				&token{Text: "2017", Offset: 13},
+				&token{Text: "Yoyodyne", Offset: 18},
+				&token{Text: ",", Offset: 26},
+				&token{Text: "Inc", Offset: 28},
+				&token{Text: ".", Offset: 31},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		if got := Tokenize(tt.text); !reflect.DeepEqual(got, tt.want) {
+			t.Errorf("Tokenize(%q) = %+v, want %+v", tt.text, got, tt.want)
+		}
+	}
+}
+
+func TestTokenizer_GenerateHashes(t *testing.T) {
+	tests := []struct {
+		text       string
+		sizeFactor int
+		wantHash   []uint32
+		wantRanges TokenRanges
+	}{
+		{
+			text:       "",
+			sizeFactor: 1,
+			wantHash:   nil,
+			wantRanges: nil,
+		},
+		{
+			text:       "Hashes",
+			sizeFactor: 1,
+			wantHash:   []uint32{408116689},
+			wantRanges: TokenRanges{{Start: 0, End: 1}},
+		},
+		{
+			text:       "hello world",
+			sizeFactor: 1,
+			wantHash:   []uint32{222957957},
+			wantRanges: TokenRanges{{Start: 0, End: 2}},
+		},
+		{
+			text:       "Copyright © 2017 Yoyodyne, Inc.",
+			sizeFactor: 3,
+			wantHash:   []uint32{2473816729, 966085113, 3025678301, 3199087486, 850352802, 1274745089},
+			wantRanges: TokenRanges{
+				{Start: 0, End: 2},
+				{Start: 1, End: 3},
+				{Start: 2, End: 4},
+				{Start: 3, End: 5},
+				{Start: 4, End: 6},
+				{Start: 5, End: 7},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		hash := make(Hash)
+		toks := Tokenize(tt.text)
+		h, tr := toks.GenerateHashes(hash, len(toks)/tt.sizeFactor)
+		if !reflect.DeepEqual(h, tt.wantHash) {
+			t.Errorf("GenerateHashes(hash) = %v, want %v", h, tt.wantHash)
+		}
+		if !reflect.DeepEqual(tr, tt.wantRanges) {
+			t.Errorf("GenerateHashes(ranges) = %v, want %v", tr, tt.wantRanges)
+		}
+	}
+}