This is an automated email from the ASF dual-hosted git repository.
henrib pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-jexl.git
The following commit(s) were added to refs/heads/master by this push:
new ae3b1cbe JEXL-431: catch statement must be a lexical statement
(different scope than try); JEXL-432: clean cached NamespaceFunctor in
clearCache (sic); JEXL-433: protect against case of AST return node having no
children; JEXL-434: check for safe-array access on null dereference as
left-hand side of expression;
ae3b1cbe is described below
commit ae3b1cbe611229bb402f46b09a85858c3a8d2bb2
Author: Henrib <hbies...@gmail.com>
AuthorDate: Tue Dec 10 11:23:18 2024 +0100
JEXL-431: catch statement must be a lexical statement (different scope than
try);
JEXL-432: clean cached NamespaceFunctor in clearCache (sic);
JEXL-433: protect against case of AST return node having no children;
JEXL-434: check for safe-array access on null dereference as left-hand side
of expression;
---
src/changes/changes.xml | 9 ++++
.../apache/commons/jexl3/internal/Debugger.java | 10 ++--
.../commons/jexl3/parser/ASTArrayAccess.java | 5 ++
.../org/apache/commons/jexl3/parser/JexlNode.java | 4 +-
.../org/apache/commons/jexl3/parser/Parser.jjt | 12 ++---
.../org/apache/commons/jexl3/scripting/Main.java | 59 ++++++++++----------
.../org/apache/commons/jexl3/ClassCreatorTest.java | 46 +++++++++++++---
.../org/apache/commons/jexl3/Issues400Test.java | 63 ++++++++++++++++++----
.../jexl3/scripting/JexlScriptEngineTest.java | 52 +++++++++++++-----
9 files changed, 191 insertions(+), 69 deletions(-)
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 415f72f0..953a3115 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -29,6 +29,15 @@
<body>
<release version="3.4.1" date="YYYY-MM-DD" description="This is a
feature and maintenance release. Java 8 or later is required.">
<!-- FIX -->
+ <action dev="henrib" type="fix" issue="JEXL-434" due-to="Vincent
Bussol">
+ The safe-access array operator is not safe
+ </action>
+ <action dev="henrib" type="fix" issue="JEXL-433" due-to="Vincent
Bussol">
+ Debugger does not accept empty return statement
+ </action>
+ <action dev="henrib" type="fix" issue="JEXL-432" due-to="Vincent
Bussol">
+ PNamespace functors are not cleared when the classloader is
updated
+ </action>
<action dev="henrib" type="fix" issue="JEXL-431" due-to="Vincent
Bussol">
Parse error with variables declared in a catch clause
</action>
diff --git a/src/main/java/org/apache/commons/jexl3/internal/Debugger.java
b/src/main/java/org/apache/commons/jexl3/internal/Debugger.java
index 6d6e3bab..91456410 100644
--- a/src/main/java/org/apache/commons/jexl3/internal/Debugger.java
+++ b/src/main/java/org/apache/commons/jexl3/internal/Debugger.java
@@ -736,7 +736,8 @@ public class Debugger extends ParserVisitor implements
JexlInfo.Detail {
}
}
}
- if (!Character.isSpaceChar(builder.charAt(builder.length() - 1))) {
+ char lastChar = builder.charAt(builder.length() - 1);
+ if (!Character.isSpaceChar(lastChar) && lastChar != '\n') {
builder.append(' ');
}
builder.append('}');
@@ -1262,8 +1263,11 @@ public class Debugger extends ParserVisitor implements
JexlInfo.Detail {
@Override
protected Object visit(final ASTReturnStatement node, final Object data) {
- builder.append("return ");
- accept(node.jjtGetChild(0), data);
+ builder.append("return");
+ if (node.jjtGetNumChildren() > 0) {
+ builder.append(' ');
+ accept(node.jjtGetChild(0), data);
+ }
return data;
}
diff --git a/src/main/java/org/apache/commons/jexl3/parser/ASTArrayAccess.java
b/src/main/java/org/apache/commons/jexl3/parser/ASTArrayAccess.java
index 8c5efc1e..a2fdadb2 100644
--- a/src/main/java/org/apache/commons/jexl3/parser/ASTArrayAccess.java
+++ b/src/main/java/org/apache/commons/jexl3/parser/ASTArrayAccess.java
@@ -40,6 +40,11 @@ public class ASTArrayAccess extends JexlLexicalNode {
return (safe & 1L << c) != 0;
}
+ @Override
+ public boolean isSafeLhs(boolean safe) {
+ return isSafeChild(0) || super.isSafeLhs(safe);
+ }
+
@Override
public Object jjtAccept(final ParserVisitor visitor, final Object data) {
return visitor.visit(this, data);
diff --git a/src/main/java/org/apache/commons/jexl3/parser/JexlNode.java
b/src/main/java/org/apache/commons/jexl3/parser/JexlNode.java
index 5b30c413..6fc2d7e4 100644
--- a/src/main/java/org/apache/commons/jexl3/parser/JexlNode.java
+++ b/src/main/java/org/apache/commons/jexl3/parser/JexlNode.java
@@ -18,6 +18,7 @@ package org.apache.commons.jexl3.parser;
import org.apache.commons.jexl3.JexlArithmetic;
import org.apache.commons.jexl3.JexlCache;
+import org.apache.commons.jexl3.JexlContext.NamespaceFunctor;
import org.apache.commons.jexl3.JexlInfo;
import org.apache.commons.jexl3.JxltEngine;
import org.apache.commons.jexl3.introspection.JexlMethod;
@@ -159,7 +160,8 @@ public abstract class JexlNode extends SimpleNode
implements JexlCache.Reference
|| value instanceof JexlPropertySet
|| value instanceof JexlMethod
|| value instanceof Funcall
- || value instanceof Class ) {
+ || value instanceof Class
+ || value instanceof NamespaceFunctor) {
jjtSetValue(null);
}
for (int n = 0; n < jjtGetNumChildren(); ++n) {
diff --git a/src/main/java/org/apache/commons/jexl3/parser/Parser.jjt
b/src/main/java/org/apache/commons/jexl3/parser/Parser.jjt
index 9eeac794..9b1d5c25 100644
--- a/src/main/java/org/apache/commons/jexl3/parser/Parser.jjt
+++ b/src/main/java/org/apache/commons/jexl3/parser/Parser.jjt
@@ -444,15 +444,9 @@ void IfStatement() : {}
void TryStatement() : {}
{
- {
- pushUnit(jjtThis);
- }
- <TRY> (LOOKAHEAD(1) (TryResources() ) | Block())
- (LOOKAHEAD(1) <CATCH> <LPAREN> InlineVar() <RPAREN> Block() {
jjtThis.catchClause(); })?
+ <TRY> (LOOKAHEAD(1) TryResources() | Block())
+ (LOOKAHEAD(1) <CATCH> { pushUnit(jjtThis); } <LPAREN> InlineVar()
<RPAREN> Block() { jjtThis.catchClause(); popUnit(jjtThis);})?
(LOOKAHEAD(1) <FINALLY> Block() { jjtThis.finallyClause(); })?
- {
- popUnit(jjtThis);
- }
}
void TryResources() : {}
@@ -471,7 +465,7 @@ void TryResources() : {}
void TryResource() #void : {}
{
-(LOOKAHEAD(2) Var() | Identifier(true))
+LOOKAHEAD(2) Var() | Identifier(true)
}
void WhileStatement() : {}
diff --git a/src/main/java/org/apache/commons/jexl3/scripting/Main.java
b/src/main/java/org/apache/commons/jexl3/scripting/Main.java
index 72eeadb7..86e076f7 100644
--- a/src/main/java/org/apache/commons/jexl3/scripting/Main.java
+++ b/src/main/java/org/apache/commons/jexl3/scripting/Main.java
@@ -18,11 +18,13 @@
package org.apache.commons.jexl3.scripting;
import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
+import java.io.IOException;
import java.io.InputStreamReader;
-import java.io.PrintStream;
+import java.io.PrintWriter;
import java.nio.charset.Charset;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
import javax.script.ScriptEngine;
import javax.script.ScriptException;
@@ -36,35 +38,44 @@ public class Main {
/**
* Test application for JexlScriptEngine (JSR-223 implementation).
- *
+ * <p>
* If a single argument is present, it is treated as a file name of a JEXL
* script to be evaluated. Any exceptions terminate the application.
- *
+ * </p>
* Otherwise, lines are read from standard input and evaluated.
* ScriptExceptions are logged, and do not cause the application to exit.
* This is done so that interactive testing is easier.
+ * The line //q! ends the loop.
*
* @param args (optional) file name to evaluate. Stored in the args
variable.
* @throws Exception if parsing or IO fail
*/
public static void main(final String[] args) throws Exception {
+ try(BufferedReader in = args.length == 1? read(Paths.get(args[0])) :
read(null);
+ PrintWriter out = new PrintWriter(System.out);) {
+ run(in, out, args);
+ }
+ }
+
+ static void run(BufferedReader in, PrintWriter out, final Object... args)
throws Exception {
final JexlScriptEngineFactory fac = new JexlScriptEngineFactory();
final ScriptEngine engine = fac.getScriptEngine();
- final PrintStream out = System.out;
- engine.put("args", args);
- if (args.length == 1){
- final Object value = engine.eval(read(null, args[0]));
- out.println("Return value: "+value);
+ if (args.length > 0) {
+ engine.put("args", args);
+ final Object value = engine.eval(in);
+ out.println(">>: " + value);
} else {
- final BufferedReader console = read(null, null);
String line;
- System.out.print("> ");
- while(null != (line=console.readLine())){
+ out.print("> ");
+ while (null != (line = in.readLine())) {
+ if ("//q!".equals(line)) {
+ break;
+ }
try {
final Object value = engine.eval(line);
- out.println("Return value: "+value);
+ out.println(">> " + value);
} catch (final ScriptException e) {
- out.println(e.getLocalizedMessage());
+ out.println("!!>" + e.getLocalizedMessage());
}
out.print("> ");
}
@@ -74,19 +85,13 @@ public class Main {
/**
* Reads an input.
*
- * @param charset the charset or null for default charset
- * @param fileName the file name or null for stdin
+ * @param path the file path or null for stdin
* @return the reader
- * @throws Exception if anything goes wrong
+ * @throws IOException if anything goes wrong
*/
- static BufferedReader read(final Charset charset, final String fileName)
throws Exception {
- return new BufferedReader(
- new InputStreamReader(
- fileName == null
- ? System.in
- : new FileInputStream(new File(fileName)),
- charset == null
- ? Charset.defaultCharset()
- : charset));
+ static BufferedReader read(final Path path) throws IOException {
+ return new BufferedReader(new InputStreamReader(path == null
+ ? System.in
+ : Files.newInputStream(path), Charset.defaultCharset()));
}
}
diff --git a/src/test/java/org/apache/commons/jexl3/ClassCreatorTest.java
b/src/test/java/org/apache/commons/jexl3/ClassCreatorTest.java
index 000640a4..c689ab3c 100644
--- a/src/test/java/org/apache/commons/jexl3/ClassCreatorTest.java
+++ b/src/test/java/org/apache/commons/jexl3/ClassCreatorTest.java
@@ -197,7 +197,7 @@ public class ClassCreatorTest extends JexlTestCase {
}
@Test
- public void testBasicCtor() throws Exception {
+ void testBasicCtor() throws Exception {
final JexlScript s = jexl.createScript("(c, v)->{ var ct2 = new(c, v);
ct2.value; }");
Object r = s.execute(null, TwoCtors.class, 10);
assertEquals(10, r);
@@ -210,7 +210,7 @@ public class ClassCreatorTest extends JexlTestCase {
}
@Test
- public void testContextualCtor() throws Exception {
+ void testContextualCtor() throws Exception {
final MapContext ctxt = new MapContext();
ctxt.set("value", 42);
JexlScript s = jexl.createScript("(c)->{ new(c).value }");
@@ -222,17 +222,17 @@ public class ClassCreatorTest extends JexlTestCase {
}
@Test
- public void testFunctor2Class() throws Exception {
+ void testFunctor2Class() throws Exception {
functorTwo(new NsTest(ClassCreator.GEN_CLASS + "foo2"));
}
@Test
- public void testFunctor2Name() throws Exception {
+ void testFunctor2Name() throws Exception {
functorTwo(ClassCreator.GEN_CLASS + "foo2");
}
@Test
- public void testFunctorOne() throws Exception {
+ void testFunctorOne() throws Exception {
final JexlContext ctxt = new MapContext();
ctxt.set("value", 1000);
@@ -275,7 +275,7 @@ public class ClassCreatorTest extends JexlTestCase {
}
@Test
- public void testFunctorThree() throws Exception {
+ void testFunctorThree() throws Exception {
final JexlContext ctxt = new MapContext();
ctxt.set("value", 1000);
@@ -314,7 +314,7 @@ public class ClassCreatorTest extends JexlTestCase {
}
@Test
- public void testMany() throws Exception {
+ void testMany() throws Exception {
// abort test if class creator cannot run
if (!ClassCreator.canRun) {
return;
@@ -406,7 +406,7 @@ public class ClassCreatorTest extends JexlTestCase {
}
@Test
- public void testOne() throws Exception {
+ void testOne() throws Exception {
// abort test if class creator cannot run
if (!ClassCreator.canRun) {
logger.warn("unable to create classes");
@@ -418,4 +418,34 @@ public class ClassCreatorTest extends JexlTestCase {
assertEquals("foo1", foo1.getSimpleName());
cctor.clear();
}
+ @Test
+ void test432() throws Exception {
+ final ClassCreator cctor = new ClassCreator(jexl, base);
+ cctor.setSeed(2);
+ cctor.setCtorBody("value = (Integer) ctxt.get(\"value\") + 10;");
+ Class<?> foo1 = cctor.createClass(true);
+ assertSame(foo1.getClassLoader(), cctor.getClassLoader());
+ assertEquals("foo2", foo1.getSimpleName());
+ final Map<String, Object> ns = new HashMap<>();
+ ns.put("test", foo1.getName());
+ // use cache
+ final JexlEngine jexl2 = new
JexlBuilder().namespaces(ns).cache(16).create();
+ jexl2.setClassLoader(cctor.getClassLoader());
+ cctor.clear();
+ final JexlContext ctxt = new MapContext();
+ ctxt.set("value", 1000);
+ final JexlScript script = jexl2.createScript("test:getValue()");
+ Object result = script.execute(ctxt);
+ assertEquals(1010, result); cctor.setSeed(2);
+ cctor.setCtorBody("value = (Integer) ctxt.get(\"value\") + 99;");
+ final Class<?> foo11 = cctor.createClass(true);
+ assertEquals("foo2", foo1.getSimpleName());
+ assertNotSame(foo11, foo1);
+ foo1 = foo11;
+ // drum rolll....
+ jexl2.setClassLoader(foo1.getClassLoader());
+ result = script.execute(ctxt);
+ // tada!
+ assertEquals(1099, result);
+ }
}
diff --git a/src/test/java/org/apache/commons/jexl3/Issues400Test.java
b/src/test/java/org/apache/commons/jexl3/Issues400Test.java
index f599fbc8..f3330b3c 100644
--- a/src/test/java/org/apache/commons/jexl3/Issues400Test.java
+++ b/src/test/java/org/apache/commons/jexl3/Issues400Test.java
@@ -17,15 +17,9 @@
package org.apache.commons.jexl3;
import static
org.apache.commons.jexl3.introspection.JexlPermissions.RESTRICTED;
-import static org.junit.jupiter.api.Assertions.assertArrayEquals;
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertInstanceOf;
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertNull;
-import static org.junit.jupiter.api.Assertions.assertThrows;
-import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.*;
+import java.io.Closeable;
import java.lang.reflect.Method;
import java.math.BigDecimal;
import java.util.Arrays;
@@ -37,6 +31,7 @@ import java.util.Map;
import java.util.Objects;
import java.util.concurrent.atomic.AtomicLong;
+import org.apache.commons.jexl3.internal.Debugger;
import org.apache.commons.jexl3.introspection.JexlPermissions;
import org.junit.jupiter.api.Test;
@@ -495,7 +490,7 @@ public class Issues400Test {
}
@Test
- void test431() {
+ void test431a() {
JexlEngine jexl = new JexlBuilder().create();
final String src = "let x = 0; try { x += 19 } catch (let error) {
return 169 } try { x += 23 } catch (let error) { return 169 }";
final JexlScript script = jexl.createScript(src);
@@ -503,4 +498,54 @@ public class Issues400Test {
final Object result = script.execute(null);
assertEquals(42, result);
}
+
+ Closeable foo() {
+ return null;
+ }
+
+ @Test
+ void test431b() {
+ JexlEngine jexl = new JexlBuilder().create();
+ final String src = "let x = 0; try(let error) { x += 19 } catch (let
error) { return 169 } try { x += 23 } catch (let error) { return 169 }";
+ final JexlScript script = jexl.createScript(src);
+ assertNotNull(script);
+ final Object result = script.execute(null);
+ assertEquals(42, result);
+ }
+
+ @Test
+ void test431c() {
+ JexlEngine jexl = new JexlBuilder().create();
+ final String src = "let xx = 0; try { xx += 19 } catch (let xx) {
return 169 }";
+ try {
+ final JexlScript script = jexl.createScript(src);
+ fail("xx is already defined in scope");
+ } catch(JexlException.Parsing parsing) {
+ assertTrue(parsing.getDetail().contains("xx"));
+ }
+ }
+
+ @Test
+ void test433() {
+ JexlEngine jexl = new JexlBuilder().create();
+ final String src = "let condition = true; if (condition) { return; }";
+ final JexlScript script = jexl.createScript(src);
+ assertNotNull(script);
+ Object result = script.execute(null);
+ assertNull(result);
+ Debugger debugger = new Debugger();
+ assertTrue(debugger.debug(script));
+ String dbgStr = debugger.toString();
+ assertTrue(JexlTestCase.equalsIgnoreWhiteSpace(src, dbgStr));
+ }
+
+ @Test
+ void test434() {
+ JexlEngine jexl = new JexlBuilder().safe(false).strict(true).create();
+ final String src = "let foo = null; let value = foo?[bar]";
+ final JexlScript script = jexl.createScript(src);
+ assertNotNull(script);
+ final Object result = script.execute(null);
+ assertNull(result);
+ }
}
diff --git
a/src/test/java/org/apache/commons/jexl3/scripting/JexlScriptEngineTest.java
b/src/test/java/org/apache/commons/jexl3/scripting/JexlScriptEngineTest.java
index 7f5f1a65..c9917781 100644
--- a/src/test/java/org/apache/commons/jexl3/scripting/JexlScriptEngineTest.java
+++ b/src/test/java/org/apache/commons/jexl3/scripting/JexlScriptEngineTest.java
@@ -24,8 +24,11 @@ import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
+import java.io.BufferedReader;
+import java.io.PrintWriter;
import java.io.Reader;
import java.io.StringReader;
+import java.io.StringWriter;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
@@ -40,6 +43,7 @@ import org.apache.commons.jexl3.JexlBuilder;
import org.apache.commons.jexl3.JexlException;
import org.apache.commons.jexl3.introspection.JexlPermissions;
import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
public class JexlScriptEngineTest {
@@ -61,14 +65,14 @@ public class JexlScriptEngineTest {
"application/x-jexl3");
@AfterEach
- public void tearDown() {
+ void tearDown() {
JexlBuilder.setDefaultPermissions(null);
JexlScriptEngine.setInstance(null);
JexlScriptEngine.setPermissions(null);
}
@Test
- public void testCompile() throws Exception {
+ void testCompile() throws Exception {
final ScriptEngineManager manager = new ScriptEngineManager();
final JexlScriptEngine engine = (JexlScriptEngine)
manager.getEngineByName("JEXL");
final ScriptContext ctxt = engine.getContext();
@@ -106,14 +110,14 @@ public class JexlScriptEngineTest {
}
@Test
- public void testDirectNew() throws Exception {
+ void testDirectNew() throws Exception {
final ScriptEngine engine = new JexlScriptEngine();
final Integer initialValue = 123;
assertEquals(initialValue,engine.eval("123"));
}
@Test
- public void testDottedNames() throws Exception {
+ void testDottedNames() throws Exception {
final ScriptEngineManager manager = new ScriptEngineManager();
assertNotNull(manager, "Manager should not be null");
final ScriptEngine engine = manager.getEngineByName("JEXL");
@@ -127,7 +131,7 @@ public class JexlScriptEngineTest {
}
@Test
- public void testErrors() throws Exception {
+ void testErrors() throws Exception {
final ScriptEngineManager manager = new ScriptEngineManager();
final JexlScriptEngine engine = (JexlScriptEngine)
manager.getEngineByName("JEXL");
final ScriptContext ctxt = engine.getContext();
@@ -141,7 +145,7 @@ public class JexlScriptEngineTest {
}
@Test
- public void testNulls() throws Exception {
+ void testNulls() throws Exception {
final ScriptEngineManager manager = new ScriptEngineManager();
assertNotNull(manager, "Manager should not be null");
final ScriptEngine engine = manager.getEngineByName("jexl3");
@@ -155,7 +159,7 @@ public class JexlScriptEngineTest {
}
@Test
- public void testScopes() throws Exception {
+ void testScopes() throws Exception {
final ScriptEngineManager manager = new ScriptEngineManager();
assertNotNull(manager, "Manager should not be null");
final ScriptEngine engine = manager.getEngineByName("jexl3");
@@ -177,7 +181,7 @@ public class JexlScriptEngineTest {
}
@Test
- public void testScriptEngineFactory() throws Exception {
+ void testScriptEngineFactory() throws Exception {
final JexlScriptEngineFactory factory = new JexlScriptEngineFactory();
assertEquals("JEXL Engine", factory.getParameter(ScriptEngine.ENGINE));
assertEquals("3.4", factory.getParameter(ScriptEngine.ENGINE_VERSION));
@@ -193,7 +197,7 @@ public class JexlScriptEngineTest {
}
@Test
- public void testScripting() throws Exception {
+ void testScripting() throws Exception {
final ScriptEngineManager manager = new ScriptEngineManager();
assertNotNull(manager, "Manager should not be null");
final ScriptEngine engine = manager.getEngineByName("jexl3");
@@ -219,7 +223,7 @@ public class JexlScriptEngineTest {
}
@Test
- public void testScriptingGetBy() throws Exception {
+ void testScriptingGetBy() throws Exception {
final ScriptEngineManager manager = new ScriptEngineManager();
assertNotNull(manager, "Manager should not be null");
for (final String name : NAMES) {
@@ -236,7 +240,7 @@ public class JexlScriptEngineTest {
}
}
@Test
- public void testScriptingInstance0() throws Exception {
+ void testScriptingInstance0() throws Exception {
JexlScriptEngine.setPermissions(JexlPermissions.UNRESTRICTED);
final ScriptEngineManager manager = new ScriptEngineManager();
final ScriptEngine engine = manager.getEngineByName("jexl3");
@@ -247,7 +251,7 @@ public class JexlScriptEngineTest {
}
@Test
- public void testScriptingPermissions1() throws Exception {
+ void testScriptingPermissions1() throws Exception {
JexlBuilder.setDefaultPermissions(JexlPermissions.UNRESTRICTED);
JexlScriptEngine.setPermissions(null);
final ScriptEngineManager manager = new ScriptEngineManager();
@@ -257,4 +261,28 @@ public class JexlScriptEngineTest {
+ "now=sys.currentTimeMillis();");
assertTrue(time2 <= System.currentTimeMillis());
}
+
+
+ @Test
+ void testMain0() throws Exception {
+ StringWriter strw = new StringWriter();
+ StringReader strr = new StringReader("a=20\nb=22\na+b\n//q!\n");
+ Main.run(new BufferedReader(strr), new PrintWriter(strw), new
String[0]);
+ String ctl = "> >> 20\n" +
+ "> >> 22\n" +
+ "> >> 42\n" +
+ "> ";
+ Assertions.assertEquals(ctl, strw.toString());
+ }
+
+
+ @Test
+ void testMain1() throws Exception {
+ StringWriter strw = new StringWriter();
+ StringReader strr = new StringReader("args[0]+args[1]");
+ Main.run(new BufferedReader(strr), new PrintWriter(strw), 20, 22);
+ String ctl = ">>: 42\n";
+ Assertions.assertEquals(ctl, strw.toString());
+ }
+
}
