test: Add 20 files

tests/test_lib.cpp

@@ -0,0 +1,125 @@
+#include "../src/dshash.hpp"
+#include <iostream>
+#include <cassert>
+#include <fstream>
+#include <filesystem>
+#include <cstring>
+
+void test_string_hash() {
+    auto hash = DSHash::hashString("abc");
+    std::string hashStr = DSHash::toString(hash);
+    assert(hashStr == "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad");
+    std::cout << "✓ String hash test passed" << std::endl;
+}
+
+void test_empty_string() {
+    auto hash = DSHash::hashString("");
+    std::string hashStr = DSHash::toString(hash);
+    assert(hashStr == "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855");
+    std::cout << "✓ Empty string hash test passed" << std::endl;
+}
+
+void test_long_string() {
+    auto hash = DSHash::hashString("The quick brown fox jumps over the lazy dog");
+    std::string hashStr = DSHash::toString(hash);
+    assert(hashStr == "d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592");
+    std::cout << "✓ Long string hash test passed" << std::endl;
+}
+
+void test_incremental_update() {
+    DSHash hasher;
+    hasher.update("a");
+    hasher.update("b");
+    hasher.update("c");
+    auto hash = hasher.finalize();
+    std::string hashStr = DSHash::toString(hash);
+    assert(hashStr == "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad");
+    std::cout << "✓ Incremental update test passed" << std::endl;
+}
+
+void test_file_hash() {
+    std::string tempFile = "/tmp/test_hash_file.txt";
+    std::ofstream out(tempFile);
+    out << "Test content for hashing";
+    out.close();
+    
+    auto hash = DSHash::hashFile(tempFile);
+    std::string hashStr = DSHash::toString(hash);
+    
+    DSHash hasher;
+    hasher.update("Test content for hashing");
+    auto expectedHash = hasher.finalize();
+    std::string expectedHashStr = DSHash::toString(expectedHash);
+    
+    assert(hashStr == expectedHashStr);
+    std::filesystem::remove(tempFile);
+    std::cout << "✓ File hash test passed" << std::endl;
+}
+
+void test_large_data() {
+    DSHash hasher;
+    std::string chunk(1000, 'a');
+    for (int i = 0; i < 100; i++) {
+        hasher.update(chunk);
+    }
+    auto hash = hasher.finalize();
+    std::string hashStr = DSHash::toString(hash);
+    
+    assert(hashStr.length() == 64);
+    for (char c : hashStr) {
+        assert((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f'));
+    }
+    std::cout << "✓ Large data hash test passed" << std::endl;
+}
+
+void test_known_vectors() {
+    struct TestVector {
+        std::string input;
+        std::string expected;
+    };
+    
+    TestVector vectors[] = {
+        {"a", "ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb"},
+        {"message digest", "f7846f55cf23e14eebeab5b4e1550cad5b509e3348fbc4efa3a1413d393cb650"},
+        {"abcdefghijklmnopqrstuvwxyz", "71c480df93d6ae2f1efad1447c66c9525e316218cf51fc8d9ed832f2daf18b73"},
+        {"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", 
+         "db4bfcbd4da0cd85a60c3c37d3fbd8805c77f15fc6b1fdfe614ee0a7c8fdb4c0"}
+    };
+    
+    for (const auto& vec : vectors) {
+        auto hash = DSHash::hashString(vec.input);
+        std::string hashStr = DSHash::toString(hash);
+        assert(hashStr == vec.expected);
+    }
+    std::cout << "✓ Known test vectors passed" << std::endl;
+}
+
+void test_binary_data() {
+    uint8_t binaryData[] = {0x00, 0x01, 0x02, 0x03, 0xFF, 0xFE, 0xFD};
+    DSHash hasher;
+    hasher.update(binaryData, sizeof(binaryData));
+    auto hash = hasher.finalize();
+    std::string hashStr = DSHash::toString(hash);
+    
+    assert(hashStr.length() == 64);
+    std::cout << "✓ Binary data hash test passed" << std::endl;
+}
+
+int main() {
+    try {
+        test_string_hash();
+        test_empty_string();
+        test_long_string();
+        test_incremental_update();
+        test_file_hash();
+        test_large_data();
+        test_known_vectors();
+        test_binary_data();
+        
+        std::cout << "\nAll library tests passed!" << std::endl;
+        return 0;
+    } catch (const std::exception& e) {
+        std::cerr << "Test failed with exception: " << e.what() << std::endl;
+        return 1;
+    }
+}