/**
* Copyright (c) 2005-2012 by Appcelerator, Inc. All Rights Reserved.
* Licensed under the terms of the Eclipse Public License (EPL).
* Please see the license.txt included with this distribution for details.
* Any modifications to this file must keep this entire header intact.
*/
package org.python.pydev.parser.visitors;
import java.util.Iterator;
import java.util.List;
import org.python.pydev.parser.PyParserTestBase;
import org.python.pydev.parser.jython.SimpleNode;
import org.python.pydev.parser.jython.ast.Assign;
import org.python.pydev.parser.jython.ast.Expr;
import org.python.pydev.parser.jython.ast.Module;
import org.python.pydev.parser.jython.ast.Name;
import org.python.pydev.parser.jython.ast.exprType;
import org.python.pydev.parser.visitors.scope.ASTEntry;
import org.python.pydev.parser.visitors.scope.EasyASTIteratorVisitor;
import org.python.pydev.parser.visitors.scope.SequencialASTIteratorVisitor;
public class NodeUtilsTest extends PyParserTestBase {
public static void main(String[] args) {
try {
NodeUtilsTest test = new NodeUtilsTest();
test.setUp();
test.testGetContextName2();
test.tearDown();
junit.textui.TestRunner.run(NodeUtilsTest.class);
} catch (Throwable e) {
e.printStackTrace();
}
}
public void testFullRep() throws Exception {
Module node = (Module) parseLegalDocStr("a.b.c.d");
exprType attr = ((Expr) node.body[0]).value;
assertEquals("a.b.c.d", NodeUtils.getFullRepresentationString(attr));
exprType attr1 = NodeUtils.makeAttribute("a.b.c.d");
assertEquals("a.b.c.d", NodeUtils.getFullRepresentationString(attr1));
assertEquals(attr1.toString(), attr.toString());
node = (Module) parseLegalDocStr("a.b.c.d()");
exprType callAttr = NodeUtils.makeAttribute("a.b.c.d()");
assertEquals(((Expr) node.body[0]).value.toString(), callAttr.toString());
SequencialASTIteratorVisitor visitor = SequencialASTIteratorVisitor
.create(parseLegalDocStr("print a.b.c().d.__class__"));
Iterator<ASTEntry> iterator = visitor.getIterator();
iterator.next(); //Module
iterator.next(); //Print
ASTEntry entry = iterator.next(); //Attribute
assertEquals("a.b.c", NodeUtils.getFullRepresentationString(entry.node));
visitor = SequencialASTIteratorVisitor.create(parseLegalDocStr("'r.a.s.b'.join('a')"));
iterator = visitor.getIterator();
iterator.next(); //Module
iterator.next(); //Expr
entry = iterator.next(); //Attribute
assertEquals("str.join", NodeUtils.getFullRepresentationString(entry.node));
visitor = SequencialASTIteratorVisitor.create(parseLegalDocStr("print aa.bbb.cccc[comp.id].hasSimulate"));
iterator = visitor.getIterator();
iterator.next(); //Module
iterator.next(); //Expr
entry = iterator.next(); //Attribute
assertEquals("aa.bbb.cccc", NodeUtils.getFullRepresentationString(entry.node));
}
public void testClassEndLine() {
SimpleNode ast1 = parseLegalDocStr("" +
"class env:\n" +
" pass\n" +
"\n" +
"#comment\n");
checkEndLine(ast1, 4);
ast1 = parseLegalDocStr("" +
"class env:\n" +
" pass\n" +
"\n" +
"if True:\n" +
" pass\n" +
"#comment\n");
checkEndLine(ast1, 2);
}
public void testGetContextName() {
SimpleNode ast1 = parseLegalDocStr("" +
"class env:\n" +
" pass\n" +
"\n" +
"if __name__ == '__main__':\n"
+
" print 'step 1'\n" +
"\n");
SimpleNode ast2 = parseLegalDocStr("" +
"class env:\n" +
" pass\n" +
"\n" +
"if __name__ == '__main__':\n"
+
" print 'step 1'\n" +
"\n" +
"#comment");
checkEndLine(ast1, 2);
checkEndLine(ast2, 2);
assertEquals(null, NodeUtils.getContextName(4, ast1));
assertEquals(null, NodeUtils.getContextName(4, ast2));
}
public void testGetContextName2() {
SimpleNode ast = parseLegalDocStr("" +
"class Simple(object):\n" +
" def m1(self):\n" +
" a = 10\n"
+
" i = 20\n" +
" print 'here'\n" +
" \n" +
"if __name__ == '__main__':\n" +
" Simple().m1()\n"
+
"\n");
assertEquals("Simple.m1", NodeUtils.getContextName(4, ast));
}
public void testIsValidContextForSetNext() {
SimpleNode ast = parseLegalDocStr("" +
"class Simple(object): \n" +
" def m1(self): \n" +
" a = 10 \n"
+
" i = 20 \n" +
" for i in range(3): \n" +
" print 'here in for' \n"
+
" for j in range(3): \n" +
" print 'here in nested for' \n" +
" x = 1 \n"
+
" print 'm1 Ends Here' \n" +
" \n" +
" def m2(self): \n" +
" print 'method m2 started' \n"
+
" i = 0 \n" +
" try: \n" +
" print 'inside try' \n" +
" while i < 5: \n" +
" i += 1 \n"
+
" except: \n" +
" print 'inside exception' \n" +
" a = 30 \n" +
" i = 40 \n"
+
" print 'here' \n" +
" \n" +
"firstName = 'Hussain' \n" +
"lastName = 'Bohra' \n"
+
"print '%s, %s in Global Context'%(lastName, firstName) \n" +
"if __name__ == '__main__': \n"
+
" Simple().m1() \n");
// Source And Target are in Same Method
assertTrue(NodeUtils.isValidContextForSetNext(ast, 3, 4));
assertTrue(NodeUtils.isValidContextForSetNext(ast, 10, 8));
// Source And Target are in Different Method
assertFalse(NodeUtils.isValidContextForSetNext(ast, 4, 16));
// Source And Target are in Same Method. Target is inside For/While/Try..Except/Try..Finally
assertFalse(NodeUtils.isValidContextForSetNext(ast, 4, 7));
assertFalse(NodeUtils.isValidContextForSetNext(ast, 13, 18));
assertFalse(NodeUtils.isValidContextForSetNext(ast, 15, 17));
// Source And Target are in Same Method. Source is inside For/While/Try..Except/Try..Finally
assertTrue(NodeUtils.isValidContextForSetNext(ast, 7, 4));
assertTrue(NodeUtils.isValidContextForSetNext(ast, 18, 13));
assertTrue(NodeUtils.isValidContextForSetNext(ast, 17, 15));
// Source And Target are in Global Context
assertTrue(NodeUtils.isValidContextForSetNext(ast, 25, 26));
}
private void checkEndLine(SimpleNode ast1, int endLine) {
EasyASTIteratorVisitor visitor = EasyASTIteratorVisitor.create(ast1);
List<ASTEntry> classes = visitor.getClassesAndMethodsList();
assertEquals(1, classes.size());
assertEquals(endLine, classes.get(0).endLine);
}
public void testFindStmtForNode() throws Exception {
Module ast = (Module) parseLegalDocStr("a=10;b=20;c=30");
Assign assign = (Assign) ast.body[1];
Name b = (Name) assign.targets[0];
assertSame(assign, NodeUtils.findStmtForNode(ast, b));
ast = (Module) parseLegalDocStr("a=10\nb=20\nc=30");
assign = (Assign) ast.body[1];
b = (Name) assign.targets[0];
assertSame(assign, NodeUtils.findStmtForNode(ast, b));
}
}