src/test/java/org/shedlang/compiler/shid/ShidCodeGenIntSubTests.java


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package org.shedlang.compiler.shid;

import org.junit.jupiter.api.Test;
import org.shedlang.compiler.ast.typed.Typed;

import static org.shedlang.compiler.shid.instructions.ShidMatchers.*;
import static org.zwobble.precisely.AssertThat.assertThat;
import static org.zwobble.precisely.Matchers.isSequence;

public class ShidCodeGenIntSubTests {
    @Test
    public void intSubIsCompiledToIntSubInstruction() {
        var node = Typed.intSub(
            Typed.intLiteral(42),
            Typed.intLiteral(47)
        );
        var context = ShidCodeGen.Context.EMPTY;

        var result = ShidCodeGen.compileExpression(node, context);

        assertThat(result.instructions(), isSequence(
            isShidPushInt(42),
            isShidPushInt(47),
            isShidIntSub()
        ));
    }
}