forked from LeddaZ/frameworks_base
96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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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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*/
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#include "text/Utf8Iterator.h"
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#include "test/Test.h"
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using ::android::StringPiece;
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using ::testing::Eq;
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namespace aapt {
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namespace text {
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TEST(Utf8IteratorTest, IteratesOverAscii) {
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Utf8Iterator iter("hello");
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ASSERT_TRUE(iter.HasNext());
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EXPECT_THAT(iter.Next(), Eq(U'h'));
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ASSERT_TRUE(iter.HasNext());
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EXPECT_THAT(iter.Next(), Eq(U'e'));
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ASSERT_TRUE(iter.HasNext());
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EXPECT_THAT(iter.Next(), Eq(U'l'));
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ASSERT_TRUE(iter.HasNext());
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EXPECT_THAT(iter.Next(), Eq(U'l'));
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ASSERT_TRUE(iter.HasNext());
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EXPECT_THAT(iter.Next(), Eq(U'o'));
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EXPECT_FALSE(iter.HasNext());
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}
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TEST(Utf8IteratorTest, IteratesOverUnicode) {
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Utf8Iterator iter("Hi there 華勵蓮🍩");
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iter.Skip(9);
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ASSERT_TRUE(iter.HasNext());
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EXPECT_THAT(iter.Next(), Eq(U'華'));
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ASSERT_TRUE(iter.HasNext());
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EXPECT_THAT(iter.Next(), Eq(U'勵'));
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ASSERT_TRUE(iter.HasNext());
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EXPECT_THAT(iter.Next(), Eq(U'蓮'));
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ASSERT_TRUE(iter.HasNext());
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EXPECT_THAT(iter.Next(), Eq(U'🍩'));
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EXPECT_FALSE(iter.HasNext());
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}
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TEST(Utf8IteratorTest, PositionPointsToTheCorrectPlace) {
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const StringPiece expected("Mm🍩");
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Utf8Iterator iter(expected);
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// Before any character, the position should be 0.
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EXPECT_THAT(iter.Position(), Eq(0u));
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// The 'M' character, one byte.
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ASSERT_TRUE(iter.HasNext());
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iter.Next();
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EXPECT_THAT(iter.Position(), Eq(1u));
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// The 'm' character, one byte.
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ASSERT_TRUE(iter.HasNext());
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iter.Next();
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EXPECT_THAT(iter.Position(), Eq(2u));
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// The doughnut character, 4 bytes.
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ASSERT_TRUE(iter.HasNext());
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iter.Next();
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EXPECT_THAT(iter.Position(), Eq(6u));
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// There should be nothing left.
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EXPECT_FALSE(iter.HasNext());
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EXPECT_THAT(iter.Position(), Eq(expected.size()));
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}
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} // namespace text
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} // namespace aapt
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