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/*
* Copyright (C) 2018 The Android Open Source Project
*
* 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.
*/
#include "annotator/strip-unpaired-brackets.h"
#include "gtest/gtest.h"
namespace libtextclassifier3 {
namespace {
class StripUnpairedBracketsTest : public ::testing::Test {
protected:
StripUnpairedBracketsTest() : INIT_UNILIB_FOR_TESTING(unilib_) {}
UniLib unilib_;
};
TEST_F(StripUnpairedBracketsTest, StripUnpairedBrackets) {
// If the brackets match, nothing gets stripped.
EXPECT_EQ(StripUnpairedBrackets("call me (123) 456 today", {8, 17}, unilib_),
CodepointSpan(8, 17));
EXPECT_EQ(StripUnpairedBrackets("call me (123 456) today", {8, 17}, unilib_),
CodepointSpan(8, 17));
// If the brackets don't match, they get stripped.
EXPECT_EQ(StripUnpairedBrackets("call me (123 456 today", {8, 16}, unilib_),
CodepointSpan(9, 16));
EXPECT_EQ(StripUnpairedBrackets("call me )123 456 today", {8, 16}, unilib_),
CodepointSpan(9, 16));
EXPECT_EQ(StripUnpairedBrackets("call me 123 456) today", {8, 16}, unilib_),
CodepointSpan(8, 15));
EXPECT_EQ(StripUnpairedBrackets("call me 123 456( today", {8, 16}, unilib_),
CodepointSpan(8, 15));
// Strips brackets correctly from length-1 selections that consist of
// a bracket only.
EXPECT_EQ(StripUnpairedBrackets("call me at ) today", {11, 12}, unilib_),
CodepointSpan(12, 12));
EXPECT_EQ(StripUnpairedBrackets("call me at ( today", {11, 12}, unilib_),
CodepointSpan(12, 12));
// Handles invalid spans gracefully.
EXPECT_EQ(StripUnpairedBrackets("call me at today", {11, 11}, unilib_),
CodepointSpan(11, 11));
EXPECT_EQ(StripUnpairedBrackets("hello world", {0, 0}, unilib_),
CodepointSpan(0, 0));
EXPECT_EQ(StripUnpairedBrackets("hello world", {11, 11}, unilib_),
CodepointSpan(11, 11));
EXPECT_EQ(StripUnpairedBrackets("hello world", {-1, -1}, unilib_),
CodepointSpan(-1, -1));
}
} // namespace
} // namespace libtextclassifier3