path: root/src/test/java/org/shedlang/compiler/patio/serialization/PatioSerializationTests.java

package org.shedlang.compiler.patio.serialization;

import org.junit.jupiter.api.Test;
import org.shedlang.compiler.patio.*;
import org.shedlang.compiler.patio.instructions.Patio;
import org.shedlang.compiler.patio.instructions.PatioInstruction;
import org.shedlang.compiler.patio.operands.PatioOperand;
import org.shedlang.compiler.patio.types.*;
import org.shedlang.compiler.patio.values.PatioDataPtrValue;
import org.shedlang.compiler.patio.values.PatioIntValue;

import java.io.IOException;
import java.util.List;
import java.util.Optional;

import static org.zwobble.precisely.AssertThat.assertThat;
import static org.zwobble.precisely.Matchers.equalTo;

public abstract class PatioSerializationTests {

    // == Compilation unit ==

    protected abstract PatioCompilationUnit deserializeCompilationUnit(byte[] buffer) throws IOException;
    protected abstract byte[] serializeCompilationUnit(PatioCompilationUnit value) throws IOException;

    @Test
    public void canSerializeCompilationUnit() throws IOException {
        var element = PatioFunctionDefinition.builder()
            .withName("f")
            .build();
        var compilationUnit = Patio.compilationUnit(List.of(element));

        var deserializedCompilationUnit = deserializeCompilationUnit(
            serializeCompilationUnit(compilationUnit)
        );

        assertThat(deserializedCompilationUnit, equalTo(compilationUnit));
    }

    // == Compilation unit elements ==

    protected abstract PatioCompilationUnitElement deserializeCompilationUnitElement(byte[] buffer) throws IOException;
    protected abstract byte[] serializeCompilationUnitElement(PatioCompilationUnitElement value) throws IOException;

    @Test
    public void canSerializeDataElementImmutableDefinition() throws IOException {
        var element = Patio.dataElementImmutableDefinition(
            "x",
            PatioVisibility.PRIVATE,
            PatioDataValues.array(
                PatioDataLayouts.BYTE,
                List.of(PatioDataValues.byte_(0x01), PatioDataValues.byte_(0x02))
            )
        );

        var deserializedElement = deserializeCompilationUnitElement(
            serializeCompilationUnitElement(element)
        );

        assertThat(deserializedElement, equalTo(element));
    }

    @Test
    public void canSerializeDataElementMutableDeclaration() throws IOException {
        var element = Patio.dataElementMutableDeclaration(
            "x",
            PatioDataLayouts.INT
        );

        var deserializedElement = deserializeCompilationUnitElement(
            serializeCompilationUnitElement(element)
        );

        assertThat(deserializedElement, equalTo(element));
    }

    @Test
    public void canSerializeDataElementMutableDefinition() throws IOException {
        var element = Patio.dataElementMutableDefinition(
            "x",
            PatioVisibility.PRIVATE,
            PatioDataValues.int_(42)
        );

        var deserializedElement = deserializeCompilationUnitElement(
            serializeCompilationUnitElement(element)
        );

        assertThat(deserializedElement, equalTo(element));
    }

    @Test
    public void canSerializeExceptionTypeDefinition() throws IOException {
        var element = Patio.exceptionTypeDefinition("Error", PatioTypes.INT);

        var deserializedElement = deserializeCompilationUnitElement(
            serializeCompilationUnitElement(element)
        );

        assertThat(deserializedElement, equalTo(element));
    }

    @Test
    public void canSerializeFunctionDeclaration() throws IOException {
        var element = PatioFunctionDeclaration.builder()
            .withName("f")
            .addParam(Patio.param("param1", PatioTypes.INT))
            .addParam(Patio.param("param2", PatioTypes.DATA_PTR))
            .addReturnType(PatioTypes.INT32)
            .build();

        var deserializedElement = deserializeCompilationUnitElement(
            serializeCompilationUnitElement(element)
        );

        assertThat(deserializedElement, equalTo(element));
    }

    @Test
    public void canSerializeFunctionDefinition() throws IOException {
        var element = PatioFunctionDefinition.builder()
            .withName("f")
            .withVisibility(PatioVisibility.PRIVATE)
            .addLocal(Patio.param("param1", PatioTypes.INT))
            .addLocal(Patio.param("param2", PatioTypes.DATA_PTR))
            .addLocal(Patio.val("local1", PatioTypes.FUNCTION_PTR))
            .addLocal(Patio.val("local2", PatioTypes.INT))
            .addReturnType(PatioTypes.INT32)
            .addBodyInstruction(Patio.localStore(Patio.localRef("local2"), Patio.intConst(2)))
            .build();

        var deserializedElement = deserializeCompilationUnitElement(
            serializeCompilationUnitElement(element)
        );

        assertThat(deserializedElement, equalTo(element));
    }

    // == Instructions ==

    protected abstract PatioInstruction deserializeInstruction(byte[] buffer) throws IOException;
    protected abstract byte[] serializeInstruction(PatioInstruction value) throws IOException;

    @Test
    public void canSerializeBlock() throws IOException {
        var instruction = Patio.block(
            List.of(
                Patio.localStore(Patio.localRef("x1"), Patio.intConst(1)),
                Patio.localStore(Patio.localRef("y1"), Patio.intConst(2))
            ),
            List.of(
                Patio.localRef("x1"),
                Patio.localRef("y1")
            )
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeBoolToInt() throws IOException {
        var instruction = Patio.boolToInt(Patio.localRef("destination"), Patio.localRef("value"));

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeCallWithoutDestination() throws IOException {
        var instruction = Patio.call(
            Optional.empty(),
            "f",
            List.of(Patio.localRef("a"), Patio.localRef("b"), Patio.localRef("c"))
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeCallWithDestination() throws IOException {
        var instruction = Patio.call(
            Optional.of(Patio.localRef("destination")),
            "f",
            List.of(Patio.localRef("a"), Patio.localRef("b"), Patio.localRef("c"))
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeCallPointer() throws IOException {
        var instruction = Patio.callPointer(
            Patio.localRef("destination"),
            Patio.localRef("f"),
            List.of(Patio.localRef("a"), Patio.localRef("b"), Patio.localRef("c"))
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeDataPtrToInt() throws IOException {
        var instruction = Patio.dataPtrToInt(Patio.localRef("destination"), Patio.localRef("value"));

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeIf() throws IOException {
        var instruction = Patio.if_(
            List.of(
                Patio.localRef("x"),
                Patio.localRef("y")
            ),
            Patio.localRef("condition"),
            Patio.block(
                List.of(
                    Patio.localStore(Patio.localRef("x1"), Patio.intConst(1)),
                    Patio.localStore(Patio.localRef("y1"), Patio.intConst(2))
                ),
                List.of(
                    Patio.localRef("x1"),
                    Patio.localRef("y1")
                )
            ),
            Patio.block(
                List.of(
                    Patio.localStore(Patio.localRef("x2"), Patio.intConst(11)),
                    Patio.localStore(Patio.localRef("y2"), Patio.intConst(12))
                ),
                List.of(
                    Patio.localRef("x2"),
                    Patio.localRef("y2")
                )
            )
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeIntAdd() throws IOException {
        var instruction = Patio.intAdd(
            Patio.localRef("destination"),
            Patio.localRef("left"),
            Patio.localRef("right")
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeIntEquals() throws IOException {
        var instruction = Patio.intEquals(
            Patio.localRef("destination"),
            Patio.localRef("left"),
            Patio.localRef("right")
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeIntNotEqual() throws IOException {
        var instruction = Patio.intNotEqual(
            Patio.localRef("destination"),
            Patio.localRef("left"),
            Patio.localRef("right")
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeIntSub() throws IOException {
        var instruction = Patio.intSub(
            Patio.localRef("destination"),
            Patio.localRef("left"),
            Patio.localRef("right")
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeIntToBool() throws IOException {
        var instruction = Patio.intToBool(Patio.localRef("destination"), Patio.localRef("value"));

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeIntToDataPtr() throws IOException {
        var instruction = Patio.intToDataPtr(
            Patio.localRef("destination"),
            Patio.localRef("value")
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeLocalStore() throws IOException {
        var instruction = Patio.localStore(
            Patio.localRef("destination"),
            Patio.localRef("x")
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeLoop() throws IOException {
        var instruction = Patio.loop(
            List.of(
                Patio.localStore(Patio.localRef("x"), Patio.intConst(1))
            )
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeLoopBreak() throws IOException {
        var instruction = Patio.loopBreak();

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeLoopContinue() throws IOException {
        var instruction = Patio.loopContinue();

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeMemoryLoad() throws IOException {
        var instruction = Patio.memoryLoad(
            Patio.localRef("destination"),
            Patio.localRef("pointer"),
            PatioDataLayouts.struct(List.of(PatioDataLayouts.INT, PatioDataLayouts.INT, PatioDataLayouts.BYTE)),
            List.of(1)
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeMemoryStore() throws IOException {
        var instruction = Patio.memoryStore(
            Patio.localRef("pointer"),
            PatioDataLayouts.struct(List.of(PatioDataLayouts.INT, PatioDataLayouts.INT, PatioDataLayouts.BYTE)),
            List.of(1),
            Patio.localRef("value")
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeReturn() throws IOException {
        var instruction = Patio.return_(Patio.localRef("value"));

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeReturnVoid() throws IOException {
        var instruction = Patio.returnVoid();

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeSwitch() throws IOException {
        var instruction = Patio.switch_(
            List.of(
                Patio.localRef("x"),
                Patio.localRef("y")
            ),
            Patio.localRef("value"),
            List.of(
                Patio.switchCase(
                    1,
                    Patio.block(
                        List.of(
                            Patio.localStore(Patio.localRef("x1"), Patio.intConst(11)),
                            Patio.localStore(Patio.localRef("y1"), Patio.intConst(12))
                        ),
                        List.of(
                            Patio.localRef("x1"),
                            Patio.localRef("y1")
                        )
                    )
                ),
                Patio.switchCase(
                    2,
                    Patio.block(
                        List.of(
                            Patio.localStore(Patio.localRef("x2"), Patio.intConst(21)),
                            Patio.localStore(Patio.localRef("y2"), Patio.intConst(22))
                        ),
                        List.of(
                            Patio.localRef("x2"),
                            Patio.localRef("y2")
                        )
                    )
                )
            ),
            Patio.block(
                List.of(
                    Patio.localStore(Patio.localRef("x3"), Patio.intConst(31)),
                    Patio.localStore(Patio.localRef("y3"), Patio.intConst(32))
                ),
                List.of(
                    Patio.localRef("x3"),
                    Patio.localRef("y3")
                )
            )
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeThrow() throws IOException {
        var instruction = Patio.throw_("Error", Patio.localRef("value"));

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeTry() throws IOException {
        var instruction = Patio.try_(
            List.of(Patio.localRef("x"), Patio.localRef("y")),
            List.of(
                Patio.catchClause(
                    "Error1",
                    Patio.localRef("a1"),
                    Patio.block(
                        List.of(
                            Patio.localStore(Patio.localRef("xCatch1"), Patio.intConst(11)),
                            Patio.localStore(Patio.localRef("yCatch1"), Patio.intConst(12))
                        ),
                        List.of(Patio.localRef("xCatch1"), Patio.localRef("yCatch1"))
                    )
                ),
                Patio.catchClause(
                    "Error2",
                    Patio.localRef("a2"),
                    Patio.block(
                        List.of(
                            Patio.localStore(Patio.localRef("xCatch2"), Patio.intConst(21)),
                            Patio.localStore(Patio.localRef("yCatch2"), Patio.intConst(22))
                        ),
                        List.of(Patio.localRef("xCatch2"), Patio.localRef("yCatch2"))
                    )
                )
            ),
            Patio.block(
                List.of(
                    Patio.localStore(Patio.localRef("xTry"), Patio.intConst(31)),
                    Patio.localStore(Patio.localRef("yTry"), Patio.intConst(32))
                ),
                List.of(Patio.localRef("xTry"), Patio.localRef("yTry"))
            )
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeUnreachable() throws IOException {
        var instruction = Patio.unreachable();

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeVarLoad() throws IOException {
        var instruction = Patio.varLoad(
            Patio.localRef("destination"),
            Patio.localRef("v")
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    @Test
    public void canSerializeVarStore() throws IOException {
        var instruction = Patio.varStore(
            Patio.localRef("destination"),
            Patio.localRef("value")
        );

        var deserializedInstruction = deserializeInstruction(
            serializeInstruction(instruction)
        );

        assertThat(deserializedInstruction, equalTo(instruction));
    }

    // == Operands ==

    protected abstract PatioOperand deserializeOperand(byte[] buffer) throws IOException;
    protected abstract byte[] serializeOperand(PatioOperand value) throws IOException;

    @Test
    public void canSerializeBoolConst() throws IOException {
        var operand = Patio.boolConst(true);

        var deserializedOperand = deserializeOperand(
            serializeOperand(operand)
        );

        assertThat(deserializedOperand, equalTo(operand));
    }

    @Test
    public void canSerializeByteConst() throws IOException {
        var operand = Patio.byteConst((byte) 42);

        var deserializedOperand = deserializeOperand(
            serializeOperand(operand)
        );

        assertThat(deserializedOperand, equalTo(operand));
    }

    @Test
    public void canSerializeDataPtrConst() throws IOException {
        var operand = Patio.dataPtrConst("x");

        var deserializedOperand = deserializeOperand(
            serializeOperand(operand)
        );

        assertThat(deserializedOperand, equalTo(operand));
    }

    @Test
    public void canSerializeFunctionPtrConst() throws IOException {
        var operand = Patio.functionPtrConst("x");

        var deserializedOperand = deserializeOperand(
            serializeOperand(operand)
        );

        assertThat(deserializedOperand, equalTo(operand));
    }

    @Test
    public void canSerializeIntConst() throws IOException {
        var operand = Patio.intConst(42);

        var deserializedOperand = deserializeOperand(
            serializeOperand(operand)
        );

        assertThat(deserializedOperand, equalTo(operand));
    }

    @Test
    public void canSerializeInt32Const() throws IOException {
        var operand = Patio.int32Const(42);

        var deserializedOperand = deserializeOperand(
            serializeOperand(operand)
        );

        assertThat(deserializedOperand, equalTo(operand));
    }

    @Test
    public void canSerializeLocalRef() throws IOException {
        var operand = Patio.localRef("x");

        var deserializedOperand = deserializeOperand(
            serializeOperand(operand)
        );

        assertThat(deserializedOperand, equalTo(operand));
    }

    // == Data ptr values ==

    protected abstract PatioDataPtrValue deserializeDataPtrValue(byte[] buffer) throws IOException;
    protected abstract byte[] serializeDataPtrValue(PatioDataPtrValue value) throws IOException;

    @Test
    public void canSerializeDataPtrValueDataElement() throws IOException {
        var dataPtrValue = Patio.dataPtrValueDataElement("string");

        var deserializedDataPtrValue = deserializeDataPtrValue(
            serializeDataPtrValue(dataPtrValue)
        );

        assertThat(deserializedDataPtrValue, equalTo(dataPtrValue));
    }

    @Test
    public void canSerializeDataPtrValueNull() throws IOException {
        var dataPtrValue = Patio.dataPtrValueNull();

        var deserializedDataPtrValue = deserializeDataPtrValue(
            serializeDataPtrValue(dataPtrValue)
        );

        assertThat(deserializedDataPtrValue, equalTo(dataPtrValue));
    }

    // == Int values ==

    protected abstract PatioIntValue deserializeIntValue(byte[] buffer) throws IOException;
    protected abstract byte[] serializeIntValue(PatioIntValue value) throws IOException;

    @Test
    public void canSerializeIntValueByteOffsetOf() throws IOException {
        var intValue = Patio.intValueByteOffsetOf(
            PatioDataLayouts.struct(List.of(
                PatioDataLayouts.INT,
                PatioDataLayouts.BYTE
            )),
            List.of(1, 2)
        );

        var deserializedIntValue = deserializeIntValue(
            serializeIntValue(intValue)
        );

        assertThat(deserializedIntValue, equalTo(intValue));
    }

    @Test
    public void canSerializeIntValueByteSizeOf() throws IOException {
        var intValue = Patio.intValueByteSizeOf(
            PatioDataLayouts.struct(List.of(
                PatioDataLayouts.INT,
                PatioDataLayouts.BYTE
            ))
        );

        var deserializedIntValue = deserializeIntValue(
            serializeIntValue(intValue)
        );

        assertThat(deserializedIntValue, equalTo(intValue));
    }

    @Test
    public void canSerializeIntValueLiteral() throws IOException {
        var intValue = Patio.intValueLiteral(42);

        var deserializedIntValue = deserializeIntValue(
            serializeIntValue(intValue)
        );

        assertThat(deserializedIntValue, equalTo(intValue));
    }

    // == Types ==

    protected abstract PatioType deserializeType(byte[] buffer) throws IOException;
    protected abstract byte[] serializeType(PatioType value) throws IOException;

    @Test
    public void canSerializeBoolType() throws IOException {
        var type = PatioTypes.BOOL;

        var deserializedType = deserializeType(
            serializeType(type)
        );

        assertThat(deserializedType, equalTo(type));
    }

    @Test
    public void canSerializeByteType() throws IOException {
        var type = PatioTypes.BYTE;

        var deserializedType = deserializeType(
            serializeType(type)
        );

        assertThat(deserializedType, equalTo(type));
    }

    @Test
    public void canSerializeDataPtrType() throws IOException {
        var type = PatioTypes.DATA_PTR;

        var deserializedType = deserializeType(
            serializeType(type)
        );

        assertThat(deserializedType, equalTo(type));
    }

    @Test
    public void canSerializeFunctionPtrType() throws IOException {
        var type = PatioTypes.FUNCTION_PTR;

        var deserializedType = deserializeType(
            serializeType(type)
        );

        assertThat(deserializedType, equalTo(type));
    }

    @Test
    public void canSerializeIntType() throws IOException {
        var type = PatioTypes.INT;

        var deserializedType = deserializeType(
            serializeType(type)
        );

        assertThat(deserializedType, equalTo(type));
    }

    @Test
    public void canSerializeInt32Type() throws IOException {
        var type = PatioTypes.INT32;

        var deserializedType = deserializeType(
            serializeType(type)
        );

        assertThat(deserializedType, equalTo(type));
    }

    // == Data layouts ==

    protected abstract PatioDataLayout deserializeDataLayout(byte[] buffer) throws IOException;
    protected abstract byte[] serializeDataLayout(PatioDataLayout value) throws IOException;

    @Test
    public void canSerializeDataLayoutArray() throws IOException {
        var layout = PatioDataLayouts.array(PatioDataLayouts.INT, 4);

        var deserializedLayout = deserializeDataLayout(
            serializeDataLayout(layout)
        );

        assertThat(deserializedLayout, equalTo(layout));
    }

    @Test
    public void canSerializeDataLayoutBool() throws IOException {
        var layout = PatioDataLayouts.BOOL;

        var deserializedLayout = deserializeDataLayout(
            serializeDataLayout(layout)
        );

        assertThat(deserializedLayout, equalTo(layout));
    }

    @Test
    public void canSerializeDataLayoutByte() throws IOException {
        var layout = PatioDataLayouts.BYTE;

        var deserializedLayout = deserializeDataLayout(
            serializeDataLayout(layout)
        );

        assertThat(deserializedLayout, equalTo(layout));
    }

    @Test
    public void canSerializeDataLayoutDataPtr() throws IOException {
        var layout = PatioDataLayouts.DATA_PTR;

        var deserializedLayout = deserializeDataLayout(
            serializeDataLayout(layout)
        );

        assertThat(deserializedLayout, equalTo(layout));
    }

    @Test
    public void canSerializeDataLayoutFunctionPtr() throws IOException {
        var layout = PatioDataLayouts.FUNCTION_PTR;

        var deserializedLayout = deserializeDataLayout(
            serializeDataLayout(layout)
        );

        assertThat(deserializedLayout, equalTo(layout));
    }

    @Test
    public void canSerializeDataLayoutInt() throws IOException {
        var layout = PatioDataLayouts.INT;

        var deserializedLayout = deserializeDataLayout(
            serializeDataLayout(layout)
        );

        assertThat(deserializedLayout, equalTo(layout));
    }

    @Test
    public void canSerializeDataLayoutInt32() throws IOException {
        var layout = PatioDataLayouts.INT32;

        var deserializedLayout = deserializeDataLayout(
            serializeDataLayout(layout)
        );

        assertThat(deserializedLayout, equalTo(layout));
    }

    @Test
    public void canSerializeDataLayoutStruct() throws IOException {
        var layout = PatioDataLayouts.struct(List.of(PatioDataLayouts.INT, PatioDataLayouts.INT, PatioDataLayouts.BYTE));

        var deserializedLayout = deserializeDataLayout(
            serializeDataLayout(layout)
        );

        assertThat(deserializedLayout, equalTo(layout));
    }

    // == Data values ==

    protected abstract PatioDataValue deserializeDataValue(byte[] buffer) throws IOException;
    protected abstract byte[] serializeDataValue(PatioDataValue value) throws IOException;

    @Test
    public void canSerializeDataValueArray() throws IOException {
        var value = PatioDataValues.array(
            PatioDataLayouts.BYTE,
            List.of(
                PatioDataValues.byte_(0x01),
                PatioDataValues.byte_(0x02),
                PatioDataValues.byte_(0x03)
            )
        );

        var deserializedValue = deserializeDataValue(
            serializeDataValue(value)
        );

        assertThat(deserializedValue, equalTo(value));
    }

    @Test
    public void canSerializeDataValueBool() throws IOException {
        var value = PatioDataValues.bool(true);

        var deserializedValue = deserializeDataValue(
            serializeDataValue(value)
        );

        assertThat(deserializedValue, equalTo(value));
    }

    @Test
    public void canSerializeDataValueByte() throws IOException {
        var value = PatioDataValues.byte_(0xc8);

        var deserializedValue = deserializeDataValue(
            serializeDataValue(value)
        );

        assertThat(deserializedValue, equalTo(value));
    }

    @Test
    public void canSerializeDataValueDataPtr() throws IOException {
        var value = PatioDataValues.dataPtrNull();

        var deserializedValue = deserializeDataValue(
            serializeDataValue(value)
        );

        assertThat(deserializedValue, equalTo(value));
    }

    @Test
    public void canSerializeDataValueInt() throws IOException {
        var value = PatioDataValues.int_(42);

        var deserializedValue = deserializeDataValue(
            serializeDataValue(value)
        );

        assertThat(deserializedValue, equalTo(value));
    }

    @Test
    public void canSerializeDataValueInt32() throws IOException {
        var value = PatioDataValues.int32(42);

        var deserializedValue = deserializeDataValue(
            serializeDataValue(value)
        );

        assertThat(deserializedValue, equalTo(value));
    }

    @Test
    public void canSerializeDataValueStruct() throws IOException {
        var value = PatioDataValues.struct(List.of(
            PatioDataValues.byte_(0x01),
            PatioDataValues.byte_(0x02),
            PatioDataValues.byte_(0x03)
        ));

        var deserializedValue = deserializeDataValue(
            serializeDataValue(value)
        );

        assertThat(deserializedValue, equalTo(value));
    }
}