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-rw-r--r--chapter05/src/test/java/com/seaofnodes/simple/Chapter04Test.java273
1 files changed, 273 insertions, 0 deletions
diff --git a/chapter05/src/test/java/com/seaofnodes/simple/Chapter04Test.java b/chapter05/src/test/java/com/seaofnodes/simple/Chapter04Test.java
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+++ b/chapter05/src/test/java/com/seaofnodes/simple/Chapter04Test.java
@@ -0,0 +1,273 @@
+package com.seaofnodes.simple;
+
+import com.seaofnodes.simple.node.*;
+import com.seaofnodes.simple.type.TypeInteger;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import static org.junit.Assert.*;
+
+public class Chapter04Test {
+
+ @Rule
+ public ExpectedException exceptionRule = ExpectedException.none();
+
+ @Test
+ public void testChapter4Peephole() {
+ Parser parser = new Parser("return 1+arg+2; #showGraph;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return (Proj_3+3);", ret.print());
+ }
+
+ @Test
+ public void testChapter4Peephole2() {
+ Parser parser = new Parser("return (1+arg)+2;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return (Proj_3+3);", ret.print());
+ }
+
+ @Test
+ public void testChapter4Add0() {
+ Parser parser = new Parser("return 0+arg;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return Proj_3;", ret.print());
+ }
+
+ @Test
+ public void testChapter4AddAddMul() {
+ Parser parser = new Parser("return arg+0+arg;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return (Proj_3*2);", ret.print());
+ }
+
+ @Test
+ public void testChapter4Peephole3() {
+ Parser parser = new Parser("return 1+arg+2+arg+3; #showGraph;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return ((Proj_3*2)+6);", ret.print());
+ }
+
+ @Test
+ public void testChapter4Mul1() {
+ Parser parser = new Parser("return 1*arg;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return Proj_3;", ret.print());
+ }
+
+ @Test
+ public void testChapter4VarArg() {
+ Parser parser = new Parser("return arg; #showGraph;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertTrue(ret.in(0) instanceof ProjNode);
+ assertTrue(ret.in(1) instanceof ProjNode);
+ }
+
+ @Test
+ public void testChapter4ConstantArg() {
+ Parser parser = new Parser("return arg; #showGraph;", TypeInteger.constant(2));
+ ReturnNode ret = parser.parse();
+ assertEquals("return 2;", ret.print());
+ }
+
+ @Test
+ public void testChapter4CompEq() {
+ Parser parser = new Parser("return 3==3; #showGraph;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return 1;", ret.print());
+ }
+
+ @Test
+ public void testChapter4CompEq2() {
+ Parser parser = new Parser("return 3==4; #showGraph;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return 0;", ret.print());
+ }
+
+ @Test
+ public void testChapter4CompNEq() {
+ Parser parser = new Parser("return 3!=3; #showGraph;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return 0;", ret.print());
+ }
+
+ @Test
+ public void testChapter4CompNEq2() {
+ Parser parser = new Parser("return 3!=4; #showGraph;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return 1;", ret.print());
+ }
+
+ @Test
+ public void testChapter4Bug1() {
+ Parser parser = new Parser("int a=arg+1; int b=a; b=1; return a+2; #showGraph;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return (Proj_3+3);", ret.print());
+ }
+
+ @Test
+ public void testChapter4Bug2() {
+ Parser parser = new Parser("int a=arg+1; a=a; return a; #showGraph;", TypeInteger.BOT);
+ ReturnNode ret = parser.parse();
+ assertEquals("return (Proj_3+1);", ret.print());
+ }
+
+ @Test
+ public void testVarDecl() {
+ Parser parser = new Parser("int a=1; return a;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return 1;", ret.print());
+ }
+
+ @Test
+ public void testVarAdd() {
+ Parser parser = new Parser("int a=1; int b=2; return a+b;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return 3;", ret.print());
+ }
+
+ @Test
+ public void testVarScope() {
+ Parser parser = new Parser("int a=1; int b=2; int c=0; { int b=3; c=a+b; } return c;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return 4;", ret.print());
+ }
+
+ @Test
+ public void testVarScopeNoPeephole() {
+ Node._disablePeephole = true;
+ Parser parser = new Parser("int a=1; int b=2; int c=0; { int b=3; c=a+b; #showGraph; } return c; #showGraph;");
+ ReturnNode ret = parser.parse();
+ Node._disablePeephole = false;
+ assertEquals("return (1+3);", ret.print());
+ }
+
+ @Test
+ public void testVarDist() {
+ Parser parser = new Parser("int x0=1; int y0=2; int x1=3; int y1=4; return (x0-x1)*(x0-x1) + (y0-y1)*(y0-y1); #showGraph;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return 8;", ret.print());
+ }
+
+ @Test
+ public void testSelfAssign() {
+ exceptionRule.expect(RuntimeException.class);
+ exceptionRule.expectMessage("Undefined name 'a'");
+ new Parser("int a=a; return a;").parse();
+ }
+
+
+ @Test
+ public void testChapter2ParseGrammar() {
+ Node._disablePeephole = true; // disable peephole so we can observe full graph
+ Parser parser = new Parser("return 1+2*3+-5;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return (1+((2*3)+(-5)));", ret.print());
+ GraphVisualizer gv = new GraphVisualizer();
+ System.out.println(gv.generateDotOutput(parser));
+ Node._disablePeephole = false;
+ }
+
+ @Test
+ public void testChapter2AddPeephole() {
+ Parser parser = new Parser("return 1+2;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return 3;", ret.print());
+ }
+
+ @Test
+ public void testChapter2SubPeephole() {
+ Parser parser = new Parser("return 1-2;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return -1;", ret.print());
+ }
+
+ @Test
+ public void testChapter2MulPeephole() {
+ Parser parser = new Parser("return 2*3;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return 6;", ret.print());
+ }
+
+ @Test
+ public void testChapter2DivPeephole() {
+ Parser parser = new Parser("return 6/3;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return 2;", ret.print());
+ }
+
+ @Test
+ public void testChapter2MinusPeephole() {
+ Parser parser = new Parser("return 6/-3;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return -2;", ret.print());
+ }
+
+ @Test
+ public void testChapter2Example() {
+ Parser parser = new Parser("return 1+2*3+-5;");
+ ReturnNode ret = parser.parse();
+ assertEquals("return 2;", ret.print());
+ GraphVisualizer gv = new GraphVisualizer();
+ System.out.println(gv.generateDotOutput(parser));
+ }
+
+ @Test
+ public void testSimpleProgram() {
+ Parser parser = new Parser("return 1;");
+ ReturnNode ret = parser.parse();
+ StartNode start = Parser.START;
+
+ assertTrue(ret.ctrl() instanceof ProjNode);
+ Node expr = ret.expr();
+ if( expr instanceof ConstantNode con ) {
+ assertEquals(start,con.in(0));
+ assertEquals(TypeInteger.constant(1), con._type);
+ } else {
+ fail();
+ }
+ }
+
+ @Test
+ public void testZero() {
+ Parser parser = new Parser("return 0;");
+ parser.parse();
+ StartNode start = Parser.START;
+ for( Node use : start._outputs )
+ if( use instanceof ConstantNode con )
+ assertEquals(TypeInteger.constant(0),con._type);
+ }
+
+ @Test
+ public void testBad1() {
+ exceptionRule.expect(RuntimeException.class);
+ exceptionRule.expectMessage("Syntax error, expected =: ");
+ new Parser("ret").parse();
+ }
+
+ @Test
+ public void testBad2() {
+ exceptionRule.expect(RuntimeException.class);
+ exceptionRule.expectMessage("Syntax error: integer values cannot start with '0'");
+ new Parser("return 0123;").parse();
+ }
+
+ @Test
+ public void testNotBad3() {
+ // this test used to fail in chapter 1
+ assertEquals("return 12;", new Parser("return --12;").parse().print());
+ }
+
+ @Test
+ public void testBad4() {
+ exceptionRule.expect(RuntimeException.class);
+ exceptionRule.expectMessage("Syntax error, expected ;:");
+ new Parser("return 100").parse();
+ }
+
+ @Test
+ public void testNotBad5() {
+ // this test used to fail in chapter 1
+ assertEquals("return -100;", new Parser("return -100;").parse().print());
+ }
+}
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