10

tests/test_10.cpp

@@ -0,0 +1,90 @@
+// This file is generated by mkfile.py
+// Date: 2026-06-25
+
+#include <gtest/gtest.h>
+#include <solution/10.h>
+
+#include <string>
+#include <vector>
+
+class RegexMatchTest : public ::testing::Test
+{
+  protected:
+    void AssertIsMatch(const std::string &s, const std::string &p, bool expected)
+    {
+        std::vector<char> s_buffer(s.begin(), s.end());
+        std::vector<char> p_buffer(p.begin(), p.end());
+        s_buffer.push_back('\0');
+        p_buffer.push_back('\0');
+
+        EXPECT_EQ(isMatch(s_buffer.data(), p_buffer.data()), expected);
+    }
+};
+
+TEST_F(RegexMatchTest, Example1)
+{
+    AssertIsMatch("aa", "a", false);
+}
+
+TEST_F(RegexMatchTest, Example2)
+{
+    AssertIsMatch("aa", "a*", true);
+}
+
+TEST_F(RegexMatchTest, Example3)
+{
+    AssertIsMatch("ab", ".*", true);
+}
+
+TEST_F(RegexMatchTest, Example4)
+{
+    AssertIsMatch("aab", "c*a*b", true);
+}
+
+TEST_F(RegexMatchTest, Example5)
+{
+    AssertIsMatch("mississippi", "mis*is*p*.", false);
+}
+
+TEST_F(RegexMatchTest, EmptyString)
+{
+    AssertIsMatch("", "", true);
+    AssertIsMatch("", "a*", true);
+    AssertIsMatch("", "c*c*", true);
+    AssertIsMatch("", ".", false);
+}
+
+TEST_F(RegexMatchTest, DotMatchesAnySingleCharacter)
+{
+    AssertIsMatch("ab", ".b", true);
+    AssertIsMatch("ab", "..", true);
+    AssertIsMatch("ab", ".", false);
+}
+
+TEST_F(RegexMatchTest, StarCanMatchZeroCharacters)
+{
+    AssertIsMatch("b", "a*b", true);
+    AssertIsMatch("ab", "ab*c", false);
+    AssertIsMatch("a", "ab*", true);
+}
+
+TEST_F(RegexMatchTest, StarCanMatchMultipleCharacters)
+{
+    AssertIsMatch("aaa", "a*", true);
+    AssertIsMatch("aaaaab", "a*b", true);
+    AssertIsMatch("bbbba", ".*a*a", true);
+}
+
+TEST_F(RegexMatchTest, MustMatchWholeString)
+{
+    AssertIsMatch("abcd", "d*", false);
+    AssertIsMatch("abc", ".*d", false);
+    AssertIsMatch("aaa", "aaaa", false);
+}
+
+TEST_F(RegexMatchTest, ComplexBacktrackingCases)
+{
+    AssertIsMatch("aaa", "ab*a*c*a", true);
+    AssertIsMatch("a", ".*..a*", false);
+    AssertIsMatch("mississippi", "mis*is*ip*.", true);
+}