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test: Added to z_function test corner cases for empty text and pattern #2863

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test: Added to z_function test corner cases for empty text and pattern #2863

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a841b20
Added to z_function test corner cases for empty text and pattern
jasonjyu Oct 20, 2024
3da5e2a
Merge branch 'master' into master
realstealthninja Oct 20, 2024
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16 changes: 16 additions & 0 deletions strings/z_function.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,22 @@ static void test() {
// matching_indexes2 gets the indexes where pattern2 exists in text2
std::vector<uint64_t> matching_indexes2 = find_pat_in_text(pattern2, text2);
assert((matching_indexes2 == std::vector<uint64_t>{}));

// corner case - empty text
std::string text3 = "";
std::string pattern3 = "abc";

// matching_indexes3 gets the indexes where pattern3 exists in text3
std::vector<uint64_t> matching_indexes3 = find_pat_in_text(pattern3, text3);
assert((matching_indexes3 == std::vector<uint64_t>{}));

// corner case - empty pattern
std::string text4 = "redsand";
std::string pattern4 = "";

// matching_indexes4 gets the indexes where pattern4 exists in text4
std::vector<uint64_t> matching_indexes4 = find_pat_in_text(pattern4, text4);
assert((matching_indexes4 == std::vector<uint64_t>{0, 1, 2, 3, 4, 5, 6}));
}

/**
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