From 7edca9823ec8ef0aed10c88fa07ef969792aab77 Mon Sep 17 00:00:00 2001
From: Cliff Click <cliffc@acm.org>
Date: Mon, 19 Oct 2026 14:56:14 -0700
Subject: Split from ch25, SCCP and interprocedural SCCP

---
 .../java/com/seaofnodes/simple/Chapter02Test.java  | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 chapter-interprocedural-sccp/src/test/java/com/seaofnodes/simple/Chapter02Test.java

(limited to 'chapter-interprocedural-sccp/src/test/java/com/seaofnodes/simple/Chapter02Test.java')

diff --git a/chapter-interprocedural-sccp/src/test/java/com/seaofnodes/simple/Chapter02Test.java b/chapter-interprocedural-sccp/src/test/java/com/seaofnodes/simple/Chapter02Test.java
new file mode 100644
index 00000000..a51ac202
--- /dev/null
+++ b/chapter-interprocedural-sccp/src/test/java/com/seaofnodes/simple/Chapter02Test.java
@@ -0,0 +1,61 @@
+package com.seaofnodes.simple;
+
+import com.seaofnodes.simple.codegen.CodeGen;
+import com.seaofnodes.simple.node.*;
+import com.seaofnodes.simple.type.TypeInteger;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class Chapter02Test {
+
+    @Test
+    public void testParseGrammar() {
+        CodeGen code = new CodeGen("return 1+2*3+-5;");
+        code.parse();
+        assertEquals("return 2;", code.print());
+    }
+
+    @Test
+    public void testAddPeephole() {
+        CodeGen code = new CodeGen("return 1+2;");
+        code.parse();
+        assertEquals("return 3;", code.print());
+    }
+
+    @Test
+    public void testSubPeephole() {
+        CodeGen code = new CodeGen("return 1-2;");
+        code.parse();
+        assertEquals("return -1;", code.print());
+    }
+
+    @Test
+    public void testMulPeephole() {
+        CodeGen code = new CodeGen("return 2*3;");
+        code.parse();
+        assertEquals("return 6;", code.print());
+    }
+
+    @Test
+    public void testDivPeephole() {
+        CodeGen code = new CodeGen("return 6/3;");
+        code.parse();
+        assertEquals("return 2;", code.print());
+    }
+
+    @Test
+    public void testMinusPeephole() {
+        CodeGen code = new CodeGen("return 6/-3;");
+        code.parse();
+        assertEquals("return -2;", code.print());
+    }
+
+    @Test
+    public void testExample() {
+        CodeGen code = new CodeGen("return 1+2*3+-5;");
+        code.parse();
+        assertEquals("return 2;", code.print());
+    }
+
+}
-- 
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