Add typed unit node

1 files changed, 22 insertions, 0 deletions

diff --git a/src/test/java/org/shedlang/compiler/stackir/StackCompilerUnitLiteralTests.java b/src/test/java/org/shedlang/compiler/stackir/StackCompilerUnitLiteralTests.java
new file mode 100644
index 00000000..024b9561
--- /dev/null
+++ b/src/test/java/org/shedlang/compiler/stackir/StackCompilerUnitLiteralTests.java
@@ -0,0 +1,22 @@
+package org.shedlang.compiler.stackir;
+
+import org.junit.jupiter.api.Test;
+import org.shedlang.compiler.ast.typed.Typed;
+
+import static org.shedlang.compiler.stackir.instructions.InstructionMatchers.isPushUnitInstruction;
+import static org.zwobble.precisely.AssertThat.assertThat;
+import static org.zwobble.precisely.Matchers.isSequence;
+
+public class StackCompilerUnitLiteralTests {
+    @Test
+    public void unitLiteralIsCompiledToPushUnitInstruction() {
+        var node = Typed.unitLiteral();
+        var context = StackCompiler.Context.EMPTY;
+
+        var result = StackCompiler.compileExpression(node, context);
+
+        assertThat(result.instructions(), isSequence(
+            isPushUnitInstruction()
+        ));
+    }
+}