| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <algorithm> |
| #include <limits> |
| |
| #include "testing/base/public/gunit.h" |
| #include "unix/ibus/surrounding_text_util.h" |
| |
| namespace mozc { |
| namespace ibus { |
| |
| TEST(SurroundingTextUtilTest, GetSafeDelta) { |
| const guint kSafeInt32MaxAsGUint = |
| static_cast<guint>(numeric_limits<int32>::max()); |
| const guint kTooLargeGUint = kSafeInt32MaxAsGUint + 42; |
| |
| int32 delta = 0; |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetSafeDelta(42, 10, &delta)); |
| EXPECT_EQ(32, delta); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetSafeDelta(1, 1, &delta)); |
| EXPECT_EQ(0, delta); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetSafeDelta(0, 1, &delta)); |
| EXPECT_EQ(-1, delta); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetSafeDelta(kSafeInt32MaxAsGUint, 0, |
| &delta)); |
| EXPECT_EQ(kSafeInt32MaxAsGUint, delta); |
| EXPECT_GE(abs(delta), 0); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetSafeDelta(kSafeInt32MaxAsGUint + 1, 1, |
| &delta)); |
| EXPECT_EQ(kSafeInt32MaxAsGUint, delta); |
| EXPECT_GE(abs(delta), 0); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetSafeDelta(0, kSafeInt32MaxAsGUint, |
| &delta)); |
| EXPECT_EQ(-static_cast<int64>(kSafeInt32MaxAsGUint), delta); |
| EXPECT_GE(abs(delta), 0); |
| |
| // The result exceeds int32. |
| EXPECT_FALSE(SurroundingTextUtil::GetSafeDelta( |
| kTooLargeGUint, 0, &delta)); |
| |
| // The result exceeds int32. |
| EXPECT_FALSE(SurroundingTextUtil::GetSafeDelta( |
| kTooLargeGUint, 0, &delta)); |
| |
| // Underflow. |
| EXPECT_FALSE(SurroundingTextUtil::GetSafeDelta( |
| 0, kTooLargeGUint, &delta)); |
| |
| // The abs(result) exceeds int32. |
| EXPECT_FALSE(SurroundingTextUtil::GetSafeDelta( |
| static_cast<guint>(-numeric_limits<int32>::min()), |
| 0, &delta)); |
| } |
| |
| TEST(SurroundingTextUtilTest, GetAnchorPosFromSelection) { |
| guint anchor_pos = 0; |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "abcde", 0, &anchor_pos)); |
| EXPECT_EQ(5, anchor_pos); |
| |
| EXPECT_FALSE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "", "a", 0, &anchor_pos)); |
| |
| EXPECT_FALSE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "a", "", 0, &anchor_pos)); |
| |
| EXPECT_FALSE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "aaa", 4, &anchor_pos)); |
| |
| EXPECT_FALSE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "aaa", 10, &anchor_pos)); |
| |
| EXPECT_FALSE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "aaaaa", "aaaaaaaaaa", 2, &anchor_pos)); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "abcde", 5, &anchor_pos)); |
| EXPECT_EQ(0, anchor_pos); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "bc", 1, &anchor_pos)); |
| EXPECT_EQ(3, anchor_pos); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "bcde", 1, &anchor_pos)); |
| EXPECT_EQ(5, anchor_pos); |
| |
| EXPECT_FALSE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "bcdef", 1, &anchor_pos)); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "bc", 3, &anchor_pos)); |
| EXPECT_EQ(1, anchor_pos); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "abc", 3, &anchor_pos)); |
| EXPECT_EQ(0, anchor_pos); |
| |
| EXPECT_FALSE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "zabc", 3, &anchor_pos)); |
| |
| EXPECT_FALSE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "abcde", "_bc", 3, &anchor_pos)); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "aaaa", "a", 1, &anchor_pos)); |
| EXPECT_EQ(2, anchor_pos); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "\343\201\202\343\201\204\343\201\206", // "あいう" |
| "\343\201\202\343\201\204\343\201\206", // "あいう" |
| 0, &anchor_pos)); |
| EXPECT_EQ(3, anchor_pos); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "\343\201\202\343\201\204\343\201\206", // "あいう" |
| "\343\201\202\343\201\204\343\201\206", // "あいう" |
| 3, &anchor_pos)); |
| EXPECT_EQ(0, anchor_pos); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "\343\201\202\343\201\204\343\201\206", // "あいう" |
| "\343\201\204\343\201\206", // "いう" |
| 1, &anchor_pos)); |
| EXPECT_EQ(3, anchor_pos); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "\343\201\202\343\201\204\343\201\206", // "あいう" |
| "\343\201\204\343\201\206", // "いう" |
| 3, &anchor_pos)); |
| EXPECT_EQ(1, anchor_pos); |
| |
| EXPECT_TRUE(SurroundingTextUtil::GetAnchorPosFromSelection( |
| "\343\201\202\343\201\204\343\201\206", // "あいう" |
| "\343\201\202\343\201\204", // "あい" |
| 2, &anchor_pos)); |
| EXPECT_EQ(0, anchor_pos); |
| } |
| |
| } // namespace ibus |
| } // namespace mozc |