TestSuite

Tests/Unit/StringOps.cpp

@@ -0,0 +1,125 @@
+// IACore-OSS; The Core Library for All IA Open Source Projects
+// Copyright (C) 2026 IAS (ias@iasoft.dev)
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <IACore/IATest.hpp>
+#include <IACore/StringOps.hpp>
+
+using namespace IACore;
+
+IAT_BEGIN_BLOCK(Core, StringOps)
+
+// -------------------------------------------------------------------------
+// 1. Base64 Encoding
+// -------------------------------------------------------------------------
+auto test_base64_encode() -> bool {
+  // Case 1: Standard text
+  {
+    const String s = "Hello World";
+    const Span<const u8> data(reinterpret_cast<const u8 *>(s.data()), s.size());
+    const String encoded = StringOps::encode_base64(data);
+    IAT_CHECK_EQ(encoded, String("SGVsbG8gV29ybGQ="));
+  }
+
+  // Case 2: Padding Logic (1 byte -> 2 pad)
+  {
+    const String s = "M";
+    const Span<const u8> data(reinterpret_cast<const u8 *>(s.data()), s.size());
+    const String encoded = StringOps::encode_base64(data);
+    IAT_CHECK_EQ(encoded, String("TQ=="));
+  }
+
+  // Case 3: Padding Logic (2 bytes -> 1 pad)
+  {
+    const String s = "Ma";
+    const Span<const u8> data(reinterpret_cast<const u8 *>(s.data()), s.size());
+    const String encoded = StringOps::encode_base64(data);
+    IAT_CHECK_EQ(encoded, String("TWE="));
+  }
+
+  // Case 4: Padding Logic (3 bytes -> 0 pad)
+  {
+    const String s = "Man";
+    const Span<const u8> data(reinterpret_cast<const u8 *>(s.data()), s.size());
+    const String encoded = StringOps::encode_base64(data);
+    IAT_CHECK_EQ(encoded, String("TWFu"));
+  }
+
+  // Case 5: Empty
+  {
+    const String encoded = StringOps::encode_base64({});
+    IAT_CHECK(encoded.empty());
+  }
+
+  return true;
+}
+
+// -------------------------------------------------------------------------
+// 2. Base64 Decoding
+// -------------------------------------------------------------------------
+auto test_base64_decode() -> bool {
+  // Case 1: Standard text
+  {
+    const String encoded = "SGVsbG8gV29ybGQ=";
+    const Vec<u8> decoded = StringOps::decode_base64(encoded);
+    const String result(reinterpret_cast<const char *>(decoded.data()),
+                        decoded.size());
+    IAT_CHECK_EQ(result, String("Hello World"));
+  }
+
+  // Case 2: Empty
+  {
+    const Vec<u8> decoded = StringOps::decode_base64("");
+    IAT_CHECK(decoded.empty());
+  }
+
+  return true;
+}
+
+// -------------------------------------------------------------------------
+// 3. Round Trip (Binary Data)
+// -------------------------------------------------------------------------
+auto test_base64_round_trip() -> bool {
+  Vec<u8> original;
+  original.reserve(256);
+  for (usize i = 0; i < 256; ++i) {
+    original.push_back(static_cast<u8>(i));
+  }
+
+  const String encoded = StringOps::encode_base64(original);
+  const Vec<u8> decoded = StringOps::decode_base64(encoded);
+
+  IAT_CHECK_EQ(original.size(), decoded.size());
+
+  bool match = true;
+  for (usize i = 0; i < original.size(); ++i) {
+    if (original[i] != decoded[i]) {
+      match = false;
+      break;
+    }
+  }
+  IAT_CHECK(match);
+
+  return true;
+}
+
+IAT_BEGIN_TEST_LIST()
+IAT_ADD_TEST(test_base64_encode);
+IAT_ADD_TEST(test_base64_decode);
+IAT_ADD_TEST(test_base64_round_trip);
+IAT_END_TEST_LIST()
+
+IAT_END_BLOCK()
+
+IAT_REGISTER_ENTRY(Core, StringOps)