diff --git a/components/core/src/clp/streaming_compression/passthrough/Compressor.cpp b/components/core/src/clp/streaming_compression/passthrough/Compressor.cpp
index d4ab89dbe..57bf36ebb 100644
--- a/components/core/src/clp/streaming_compression/passthrough/Compressor.cpp
+++ b/components/core/src/clp/streaming_compression/passthrough/Compressor.cpp
@@ -4,8 +4,14 @@
 
 #include "../../ErrorCode.hpp"
 #include "../../TraceableException.hpp"
+#include "../Compressor.hpp"
+#include "../Constants.hpp"
 
 namespace clp::streaming_compression::passthrough {
+Compressor::Compressor()
+        : ::clp::streaming_compression::Compressor{CompressorType::ZSTD},
+          m_compressed_stream_file_writer{nullptr} {}
+
 auto Compressor::write(char const* data, size_t const data_length) -> void {
     if (nullptr == m_compressed_stream_file_writer) {
         throw OperationFailed(ErrorCode_NotInit, __FILENAME__, __LINE__);
diff --git a/components/core/src/clp/streaming_compression/passthrough/Compressor.hpp b/components/core/src/clp/streaming_compression/passthrough/Compressor.hpp
index a94086196..9ec291c19 100644
--- a/components/core/src/clp/streaming_compression/passthrough/Compressor.hpp
+++ b/components/core/src/clp/streaming_compression/passthrough/Compressor.hpp
@@ -7,7 +7,6 @@
 #include "../../FileWriter.hpp"
 #include "../../TraceableException.hpp"
 #include "../Compressor.hpp"
-#include "../Constants.hpp"
 
 namespace clp::streaming_compression::passthrough {
 /**
@@ -29,7 +28,7 @@ class Compressor : public ::clp::streaming_compression::Compressor {
     };
 
     // Constructors
-    Compressor() : ::clp::streaming_compression::Compressor{CompressorType::Passthrough} {}
+    Compressor();
 
     // Destructor
     ~Compressor() override = default;
@@ -77,7 +76,7 @@ class Compressor : public ::clp::streaming_compression::Compressor {
 
 private:
     // Variables
-    FileWriter* m_compressed_stream_file_writer{nullptr};
+    FileWriter* m_compressed_stream_file_writer;
 };
 }  // namespace clp::streaming_compression::passthrough
 
diff --git a/components/core/src/clp/streaming_compression/zstd/Compressor.cpp b/components/core/src/clp/streaming_compression/zstd/Compressor.cpp
index f842ea278..cbfabbe89 100644
--- a/components/core/src/clp/streaming_compression/zstd/Compressor.cpp
+++ b/components/core/src/clp/streaming_compression/zstd/Compressor.cpp
@@ -1,11 +1,11 @@
 #include "Compressor.hpp"
 
 #include <cstddef>
-#include <vector>
 
 #include <spdlog/spdlog.h>
 #include <zstd_errors.h>
 
+#include "../../Array.hpp"
 #include "../../ErrorCode.hpp"
 #include "../../FileWriter.hpp"
 #include "../../TraceableException.hpp"
@@ -35,7 +35,17 @@ auto is_error(size_t result) -> bool {
 namespace clp::streaming_compression::zstd {
 Compressor::Compressor()
         : ::clp::streaming_compression::Compressor{CompressorType::ZSTD},
-          m_compression_stream{ZSTD_createCStream()} {
+          m_compressed_stream_file_writer{nullptr},
+          m_compression_stream{ZSTD_createCStream()},
+          m_compression_stream_contains_data{false},
+          m_compressed_stream_block_size{ZSTD_CStreamOutSize()},
+          m_compressed_stream_block_buffer{Array<char>{m_compressed_stream_block_size}},
+          m_compressed_stream_block{
+                  .dst = m_compressed_stream_block_buffer.data(),
+                  .size = m_compressed_stream_block_size,
+                  .pos = 0
+          },
+          m_uncompressed_stream_pos{0} {
     if (nullptr == m_compression_stream) {
         SPDLOG_ERROR("streaming_compression::zstd::Compressor: ZSTD_createCStream() error");
         throw OperationFailed(ErrorCode_Failure, __FILENAME__, __LINE__);
@@ -51,12 +61,6 @@ auto Compressor::open(FileWriter& file_writer, int compression_level) -> void {
         throw OperationFailed(ErrorCode_NotReady, __FILENAME__, __LINE__);
     }
 
-    // Setup compressed stream parameters
-    auto const compressed_stream_block_size{ZSTD_CStreamOutSize()};
-    m_compressed_stream_block_buffer.resize(compressed_stream_block_size);
-    m_compressed_stream_block.dst = m_compressed_stream_block_buffer.data();
-    m_compressed_stream_block.size = compressed_stream_block_size;
-
     // Setup compression stream
     auto const init_result{ZSTD_initCStream(m_compression_stream, compression_level)};
     if (is_error(init_result)) {
diff --git a/components/core/src/clp/streaming_compression/zstd/Compressor.hpp b/components/core/src/clp/streaming_compression/zstd/Compressor.hpp
index 32c0f2338..0908b4fcc 100644
--- a/components/core/src/clp/streaming_compression/zstd/Compressor.hpp
+++ b/components/core/src/clp/streaming_compression/zstd/Compressor.hpp
@@ -2,10 +2,10 @@
 #define CLP_STREAMING_COMPRESSION_ZSTD_COMPRESSOR_HPP
 
 #include <cstddef>
-#include <vector>
 
 #include <zstd.h>
 
+#include "../../Array.hpp"
 #include "../../ErrorCode.hpp"
 #include "../../FileWriter.hpp"
 #include "../../TraceableException.hpp"
@@ -92,16 +92,17 @@ class Compressor : public ::clp::streaming_compression::Compressor {
 
 private:
     // Variables
-    FileWriter* m_compressed_stream_file_writer{nullptr};
+    FileWriter* m_compressed_stream_file_writer;
 
     // Compressed stream variables
     ZSTD_CStream* m_compression_stream;
-    bool m_compression_stream_contains_data{false};
+    bool m_compression_stream_contains_data;
 
-    ZSTD_outBuffer m_compressed_stream_block{};
-    std::vector<char> m_compressed_stream_block_buffer;
+    size_t m_compressed_stream_block_size;
+    Array<char> m_compressed_stream_block_buffer;
+    ZSTD_outBuffer m_compressed_stream_block;
 
-    size_t m_uncompressed_stream_pos{0};
+    size_t m_uncompressed_stream_pos;
 };
 }  // namespace clp::streaming_compression::zstd
 
diff --git a/components/core/tests/test-StreamingCompression.cpp b/components/core/tests/test-StreamingCompression.cpp
index cbcb12364..f3083a1cc 100644
--- a/components/core/tests/test-StreamingCompression.cpp
+++ b/components/core/tests/test-StreamingCompression.cpp
@@ -1,13 +1,14 @@
+#include <algorithm>
 #include <array>
 #include <cstring>
 #include <memory>
 #include <string>
-#include <vector>
 
 #include <boost/filesystem/operations.hpp>
 #include <Catch2/single_include/catch2/catch.hpp>
 #include <zstd.h>
 
+#include "../src/clp/Array.hpp"
 #include "../src/clp/ErrorCode.hpp"
 #include "../src/clp/FileWriter.hpp"
 #include "../src/clp/ReadOnlyMemoryMappedFile.hpp"
@@ -18,12 +19,14 @@
 #include "../src/clp/streaming_compression/zstd/Compressor.hpp"
 #include "../src/clp/streaming_compression/zstd/Decompressor.hpp"
 
+using clp::Array;
 using clp::ErrorCode_Success;
 using clp::FileWriter;
 using clp::streaming_compression::Compressor;
 using clp::streaming_compression::Decompressor;
 
 TEST_CASE("StreamingCompression", "[StreamingCompression]") {
+    // Initialize constants
     constexpr size_t cBufferSize{128L * 1024 * 1024};  // 128MB
     constexpr auto cCompressionChunkSizes = std::to_array<size_t>(
             {cBufferSize / 100,
@@ -35,41 +38,35 @@ TEST_CASE("StreamingCompression", "[StreamingCompression]") {
              cBufferSize}
     );
     constexpr size_t cAlphabetLength = 26;
-
     std::string const compressed_file_path{"test_streaming_compressed_file.bin"};
-    std::vector<size_t> compression_chunk_sizes{
-            cCompressionChunkSizes.begin(),
-            cCompressionChunkSizes.end()
-    };
+
+    // Initialize compression devices
     std::unique_ptr<Compressor> compressor;
     std::unique_ptr<Decompressor> decompressor;
 
-    SECTION("Initiate zstd single phase compression") {
-        compression_chunk_sizes.insert(compression_chunk_sizes.begin(), ZSTD_CStreamInSize());
+    SECTION("ZStd single phase compression") {
         compressor = std::make_unique<clp::streaming_compression::zstd::Compressor>();
         decompressor = std::make_unique<clp::streaming_compression::zstd::Decompressor>();
     }
 
-    SECTION("Initiate passthrough compression") {
+    SECTION("Passthrough compression") {
         compressor = std::make_unique<clp::streaming_compression::passthrough::Compressor>();
         decompressor = std::make_unique<clp::streaming_compression::passthrough::Decompressor>();
     }
 
     // Initialize buffers
-    std::vector<char> uncompressed_buffer{};
-    uncompressed_buffer.resize(cBufferSize);
+    Array<char> uncompressed_buffer{cBufferSize};
     for (size_t i{0}; i < cBufferSize; ++i) {
         uncompressed_buffer.at(i) = static_cast<char>(('a' + (i % cAlphabetLength)));
     }
 
-    std::vector<char> decompressed_buffer{};
-    decompressed_buffer.resize(cBufferSize);
+    Array<char> decompressed_buffer{cBufferSize};
 
     // Compress
     FileWriter file_writer;
     file_writer.open(compressed_file_path, FileWriter::OpenMode::CREATE_FOR_WRITING);
     compressor->open(file_writer);
-    for (auto const chunk_size : compression_chunk_sizes) {
+    for (auto const chunk_size : cCompressionChunkSizes) {
         compressor->write(uncompressed_buffer.data(), chunk_size);
     }
     compressor->close();
@@ -81,9 +78,9 @@ TEST_CASE("StreamingCompression", "[StreamingCompression]") {
     decompressor->open(compressed_file_view.data(), compressed_file_view.size());
 
     size_t num_uncompressed_bytes{0};
-    for (auto const chunk_size : compression_chunk_sizes) {
+    for (auto const chunk_size : cCompressionChunkSizes) {
         // Clear the buffer to ensure that we are not comparing values from a previous test
-        std::fill(decompressed_buffer.begin(), decompressed_buffer.end(), 0);
+        std::ranges::fill(decompressed_buffer.begin(), decompressed_buffer.end(), 0);
         REQUIRE(
                 (ErrorCode_Success
                  == decompressor->get_decompressed_stream_region(