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[string] new StringFind()/StringEndsWith() for a sub-string (#6733)

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This commit adds a new flavor of function `StringFind()` which finds
the first occurrence of a given sub-string within a string. It also
adds `StringEndsWith()` function that works with a sub-string. The
unit test `test_string` is also updated to cover the new behavior of
the newly added function.
This commit is contained in:
Abtin Keshavarzian
2021-06-17 10:13:03 -07:00
committed by GitHub
parent dfad64ea14
commit d47a3fa9ad
3 changed files with 95 additions and 2 deletions
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tests/unit/test_string.cpp
+44 -2
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@@ -145,7 +145,8 @@ void TestUtf8(void)
void TestStringFind(void)
{
char emptyString[1] = {'\0'};
char testString[] = "foo.bar\\.";
char testString[] = "foo.bar.bar\\.";
char testString2[] = "abcabcabcdabc";
printf("\nTest 6: StringFind() function\n");
@@ -153,13 +154,53 @@ void TestStringFind(void)
VerifyOrQuit(StringFind(testString, 'o') == &testString[1], "StringFind() failed");
VerifyOrQuit(StringFind(testString, '.') == &testString[3], "StringFind() failed");
VerifyOrQuit(StringFind(testString, 'r') == &testString[6], "StringFind() failed");
VerifyOrQuit(StringFind(testString, '\\') == &testString[7], "StringFind() failed");
VerifyOrQuit(StringFind(testString, '\\') == &testString[11], "StringFind() failed");
VerifyOrQuit(StringFind(testString, 'x') == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(testString, ',') == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(emptyString, 'f') == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(emptyString, '.') == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(testString, "foo") == &testString[0], "StringFind() failed");
VerifyOrQuit(StringFind(testString, "oo") == &testString[1], "StringFind() failed");
VerifyOrQuit(StringFind(testString, "bar") == &testString[4], "StringFind() failed");
VerifyOrQuit(StringFind(testString, "bar\\") == &testString[8], "StringFind() failed");
VerifyOrQuit(StringFind(testString, "\\.") == &testString[11], "StringFind() failed");
VerifyOrQuit(StringFind(testString, testString) == testString, "StringFind() failed");
VerifyOrQuit(StringFind(testString, "fooo") == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(testString, "far") == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(testString, "bar\\..") == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(testString, "") == &testString[0], "StringFind() failed");
VerifyOrQuit(StringFind(emptyString, "foo") == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(emptyString, "bar") == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(emptyString, "") == &emptyString[0], "StringFind() failed");
// Verify when sub-string has repeated patterns
VerifyOrQuit(StringFind(testString2, "abcabc") == &testString2[0], "StringFind() failed");
VerifyOrQuit(StringFind(testString2, "abcabcd") == &testString2[3], "StringFind() failed");
printf(" -- PASS\n");
}
void TestStringEndsWith(void)
{
printf("\nTest 7: StringEndsWith() function\n");
VerifyOrQuit(StringEndsWith("foobar", 'r'), "StringEndsWith() failed");
VerifyOrQuit(!StringEndsWith("foobar", 'a'), "StringEndsWith() failed");
VerifyOrQuit(!StringEndsWith("foobar", '\0'), "StringEndsWith() failed");
VerifyOrQuit(StringEndsWith("a", 'a'), "StringEndsWith() failed");
VerifyOrQuit(!StringEndsWith("a", 'b'), "StringEndsWith() failed");
VerifyOrQuit(StringEndsWith("foobar", "bar"), "StringEndsWith() failed");
VerifyOrQuit(!StringEndsWith("foobar", "ba"), "StringEndsWith() failed");
VerifyOrQuit(StringEndsWith("foobar", "foobar"), "StringEndsWith() failed");
VerifyOrQuit(!StringEndsWith("foobar", "foobarr"), "StringEndsWith() failed");
VerifyOrQuit(!StringEndsWith("", 'a'), "StringEndsWith() failed");
VerifyOrQuit(!StringEndsWith("", "foo"), "StringEndsWith() failed");
printf(" -- PASS\n");
}
@@ -171,6 +212,7 @@ int main(void)
ot::TestStringLength();
ot::TestUtf8();
ot::TestStringFind();
ot::TestStringEndsWith();
printf("\nAll tests passed.\n");
return 0;
}