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Further optimize StringSequence.startsWith

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See gh-21259
This commit is contained in:
Phillip Webb
2020-05-05 18:32:50 -07:00
parent 70ffc70993
commit 4a8492d428
2 changed files with 15 additions and 11 deletions
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14
spring-boot-project/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/jar/StringSequenceTests.java
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@@ -203,4 +203,18 @@ class StringSequenceTests {
assertThat(new StringSequence("xab").startsWith("c", 1)).isFalse();
}
@Test
void startsWithOnSubstringTailWhenMatch() {
StringSequence subSequence = new StringSequence("xabc").subSequence(1);
assertThat(subSequence.startsWith("abc")).isTrue();
assertThat(subSequence.startsWith("abcd")).isFalse();
}
@Test
void startsWithOnSubstringMiddleWhenMatch() {
StringSequence subSequence = new StringSequence("xabc").subSequence(1, 3);
assertThat(subSequence.startsWith("ab")).isTrue();
assertThat(subSequence.startsWith("abc")).isFalse();
}
}