/src/concordion/impl/tests/java_test.py

import unittest, os, shutil, pmock

from concordion.impl.java import JavaClassGenerator, Classpath, JavaFileCompiler, JavaTestLauncher

class JavaClassGeneratorTest(unittest.TestCase):

	def test_can_generate_for_an_empty_list_of_classes(self):
		"Class Generator - Can be run on an empty file list"
		generator = JavaClassGenerator(".")
		self.assertEquals([], generator.run([]))

	def test_can_generate_for_a_single_simple_python_file(self):
		"Class Generator - Can be run on a single simple python file"
		_createFile("MyPythonFile.py", """
class MyPythonFile:
	pass
""")
		result = JavaClassGenerator(".").run(["MyPythonFile.py"])
		self.assertEquals(1, len(result))
		self.assertEquals("MyPythonFile.java", result[0])
		self.assertEquals("""
import java.net.*;
import org.apache.ws.commons.util.NamespaceContextImpl;
import org.apache.xmlrpc.common.TypeFactoryImpl;
import org.apache.xmlrpc.common.XmlRpcController;
import org.apache.xmlrpc.common.XmlRpcStreamConfig;
import org.apache.xmlrpc.parser.NullParser;
import org.apache.xmlrpc.parser.TypeParser;
import org.apache.xmlrpc.serializer.NullSerializer;
import org.apache.xmlrpc.client.XmlRpcClient;
import org.apache.xmlrpc.client.XmlRpcClientConfigImpl;
import org.apache.xmlrpc.XmlRpcException;
import org.concordion.integration.junit3.ConcordionTestCase;
import org.concordion.api.ExpectedToPass;
import java.lang.reflect.Array;
import java.lang.System;
import java.util.*;

@ExpectedToPass
public class MyPythonFile extends ConcordionTestCase{

	XmlRpcClient client = null;

	public MyPythonFile() throws MalformedURLException{
		XmlRpcClientConfigImpl config = new XmlRpcClientConfigImpl();
		config.setServerURL(new URL("http://localhost:1337/"));
		this.client = new XmlRpcClient();
		this.client.setTypeFactory(new MyTypeFactory(this.client));
		this.client.setConfig(config);
		
	}

	class MyTypeFactory extends TypeFactoryImpl {
	
		public MyTypeFactory(XmlRpcController pController) {
			super(pController);
		}
	
		@Override
		public TypeParser getParser(XmlRpcStreamConfig pConfig,
		  NamespaceContextImpl pContext, String pURI, String pLocalName) {
	
			if ("".equals(pURI) && NullSerializer.NIL_TAG.equals(pLocalName)) {
				return new NullParser();
			} else {
				return super.getParser(pConfig, pContext, pURI, pLocalName);
			}
		}
	}
}""", file(result[0]).read())
		os.remove("MyPythonFile.py")
		os.remove("MyPythonFile.java")

	def test_can_generate_java_method_for_an_argument_less_python_method(self):
		"Class Generator - Can generate Java method for an argument less python method"
		_createFile("MyPythonFile2.py", """
class MyPythonFile2:
	def do_plop(self):
		pass
""")
		JavaClassGenerator(".").run(["MyPythonFile2.py"])
		self.assertTrue(file("MyPythonFile2.java").read().find("""
public Object do_plop() throws XmlRpcException{
	Object result = this.client.execute("MyPythonFile2_do_plop", new Object[]{});
	if(result != null && result.getClass().isArray()){
		List<Object> list = new ArrayList<Object>();
		for(int i = 0; i < Array.getLength(result); i++){
			list.add(Array.get(result, i));
		}
		return list;
	}
	return result;
}""") >= 0)
		os.remove("MyPythonFile2.py")
		os.remove("MyPythonFile2.java")

	# This test is a bug fix !	
	def test_can_generate_correct_java_even_if_method_contains_variables(self):
		"Class Generator - Can generate Java method even if python contains local variables"

		_createFile("MyPythonFile2.py", """
class MyPythonFile2:
	def do_plop(self):
		local_variable = "polop"
""")
		JavaClassGenerator(".").run(["MyPythonFile2.py"])
		self.assertTrue(file("MyPythonFile2.java").read().find("""
public Object do_plop() throws XmlRpcException{
	Object result = this.client.execute("MyPythonFile2_do_plop", new Object[]{});
""") >= 0)
		os.remove("MyPythonFile2.py")
		os.remove("MyPythonFile2.java")

	def test_can_generate_java_method_for_a_python_method_with_arguments(self):
		"Class Generator - Can generate Java method for a python method with arguments"
		_createFile("MyPythonFile3.py", """
class MyPythonFile3:
	def do_plop(self, polop, pilip):
		pass
""")
		JavaClassGenerator(".").run(["MyPythonFile3.py"])
		self.assertTrue(file("MyPythonFile3.java").read().find("""
public Object do_plop(String polop, String pilip) throws XmlRpcException{
	Object result = this.client.execute("MyPythonFile3_do_plop", new Object[]{polop, pilip});
""") >= 0)
		os.remove("MyPythonFile3.py")
		os.remove("MyPythonFile3.java")


	def test_can_generate_for_a_simple_python_file_in_another_directory(self):
		"Class Generator - Can generate even for a file that is not in the same directory"
		if not os.path.exists("tmp"):
			os.mkdir("tmp")
		_createFile("tmp/MyPythonFile.py", """
class MyPythonFile:
	pass
""")
		result = JavaClassGenerator("tmp/").run(["tmp/MyPythonFile.py"])
		self.assertEquals(1, len(result))
		self.assertEquals("tmp/MyPythonFile.java", result[0])
		shutil.rmtree("tmp")

	def test_can_generate_annotation_expected_to_fail(self):
		"Class Generator - Can generate annotation ExpectedToFail"
		_createFile("MyPythonFile.py", """
from concordion.annotation import ExpectedToFail

@ExpectedToFail
class MyPythonFile:
	pass
""")
		result = JavaClassGenerator(".").run(["MyPythonFile.py"])

		self.assertTrue(file("MyPythonFile.java").read().find("""
@ExpectedToFail
""") >= 0)
		self.assertTrue(file("MyPythonFile.java").read().find("""
import org.concordion.api.ExpectedToFail;
""") >= 0)

	def test_can_generate_annotation_unimplemented(self):
		"Class Generator - Can generate annotation Unimplemented"
		_createFile("MyPythonFile.py", """
from concordion.annotation import Unimplemented

@Unimplemented
class MyPythonFile:
	pass
""")
		result = JavaClassGenerator(".").run(["MyPythonFile.py"])

		self.assertTrue(file("MyPythonFile.java").read().find("""
@Unimplemented
""") >= 0)
		self.assertTrue(file("MyPythonFile.java").read().find("""
import org.concordion.api.Unimplemented;
""") >= 0)

	def test_can_generate_with_package_declaration(self):
		"Class Generator - Can generate package declaration"
		if not os.path.exists("tmp"):
			os.mkdir("tmp")
		if not os.path.exists("tmp/polop"):
			os.mkdir("tmp/polop")
		_createFile("tmp/polop/MyPythonFile.py", """
class MyPythonFile:
	pass
""")
		result = JavaClassGenerator(".").run(["tmp/polop/MyPythonFile.py"])
		self.assertEquals(1, len(result))
		self.assertEquals("tmp/polop/MyPythonFile.java", result[0])
		self.assertTrue(file("tmp/polop/MyPythonFile.java").read().find("""
package tmp.polop;
""") >= 0)
		shutil.rmtree("tmp")

	def test_can_generate_when_python_class_got_attributes(self):
		"Class Generator - Can generate when python class got attributes"
		_createFile("MyPythonFile.py", """
class MyPythonFile:
	attribute = []
	
	def polop(self):
		pass
""")
		result = JavaClassGenerator(".").run(["MyPythonFile.py"])
		self.assertEquals(1, len(result))
		self.assertEquals("MyPythonFile.java", result[0])
		os.remove("MyPythonFile.py")
		os.remove("MyPythonFile.java")

	def test_can_generate_java_method_for_setUp_and_tearDown(self):
		"Class Generator - Can generate for setUp and tearDown"
		_createFile("MyPythonFile2.py", """
class MyPythonFile2:
	def setUp(self):
		pass
	def tearDown(self):
		pass
""")
		JavaClassGenerator(".").run(["MyPythonFile2.py"])
		self.assertTrue(file("MyPythonFile2.java").read().find("""
public void setUp() throws XmlRpcException{
	this.client.execute("MyPythonFile2_setUp", new Object[]{});
}""") >= 0)
		self.assertTrue(file("MyPythonFile2.java").read().find("""
public void tearDown() throws XmlRpcException{
	this.client.execute("MyPythonFile2_tearDown", new Object[]{});
}""") >= 0)
		os.remove("MyPythonFile2.py")
		os.remove("MyPythonFile2.java")

	def test_can_generate_extensions_inclusion(self):
		"Class Generator - Can generate extensions inclusion based on configuration"
		_createFile("MyPythonFile2.py", """
class MyPythonFile2:
	def polop(self):
		pass
""")
		configuration = {"extensions":"This is the extension value"}
		JavaClassGenerator(".", configuration=configuration).run(["MyPythonFile2.py"])
		self.assertTrue(file("MyPythonFile2.java").read().find("""
		System.setProperty("concordion.extensions", "This is the extension value");
""") >= 0)
		os.remove("MyPythonFile2.py")
		os.remove("MyPythonFile2.java")


	def test_can_generate_testsuite(self):
		"Class Generator - Can generate test suite"
		if not os.path.exists("tmp"):
			os.mkdir("tmp")
		expected = """import junit.framework.Test;
import junit.framework.TestSuite;


public class Suite {
	public static Test suite(){
		TestSuite suite = new TestSuite();
		suite.setName("pyConcordion test suite");
		suite.addTest(new TestSuite(polop.MyPythonFile.class));
		suite.addTest(new TestSuite(polop.OtherPythonFile.class));
		return suite;
	}
}
"""
		result = JavaClassGenerator("tmp").suite(["tmp/polop/MyPythonFile.java", "tmp/polop/OtherPythonFile.java"])
		self.assertEquals("tmp/Suite.java", result)
		self.assertEquals(expected, file(result).read())
		shutil.rmtree("tmp")

class ClasspathTest(unittest.TestCase):

	def setUp(self):
		if not os.path.exists("lib"):
			os.mkdir("lib")

	def tearDown(self):
		shutil.rmtree("lib");

	def testEmptyClassPath(self):
		"Classpath - can create empty classpath"
		self.assertEquals('""', Classpath("lib").getClasspath())

	def testCanAddADirectoryToAnEmptyClasspath(self):
		"Classpath - can add a directory to empty classpath"
		classpath = Classpath("lib")
		classpath.addDirectory("/tmp")
		self.assertEquals('"/tmp"', classpath.getClasspath())

	def testCanRemoveADirectory(self):
		"Classpath - can remove a directory"
		classpath = Classpath("lib")
		classpath.addDirectory("/tmp")
		classpath.removeDirectory("/tmp")
		self.assertEquals('""', classpath.getClasspath())


	def testClasspathWithOneJar(self):
		"Classpath - can create classpath with one jar"
		path = _createFile(os.path.join("lib", "test.jar"), "polop")
		self.assertEquals('"' + path + '"', Classpath("lib").getClasspath())

	def testClasspathWithManyJar(self):
		"Classpath - can create classpath with many jars"
		path = _createFile(os.path.join("lib", "test.jar"), "polop")
		path2 = _createFile(os.path.join("lib", "test2.jar"), "polop aussi")
		self.assertEquals('"' + path + ":" + path2 + '"', Classpath("lib").getClasspath())

	def testClasspathWithManyDirectoriesAdded(self):
		"Classpath - can add many directories to a classpath"
		path = _createFile(os.path.join("lib", "test.jar"), "polop")
		path2 = _createFile(os.path.join("lib", "test2.jar"), "polop aussi")
		classpath = Classpath("lib")
		classpath.addDirectories(["lib", "/tmp"])
		self.assertEquals('"' + path + ":" + path2 + ":lib:/tmp" + '"', classpath.getClasspath())

class JavaFileCompilerTest(unittest.TestCase):
	def testCanCompile(self):
		"JavaFileCompiler - can compile files"
		executor = pmock.Mock()
		config = pmock.Mock()
		classpath = pmock.Mock()
		config.expects(pmock.once()).get(pmock.eq("javac_command")).will(pmock.return_value("myJavac"))
		classpath.expects(pmock.once()).getClasspath().will(pmock.return_value("myclasspath"))
		executor.expects(pmock.once()).run(pmock.eq("myJavac -cp myclasspath polop/MyClass.java a/pif.java")).will(pmock.return_value(0))
		result = JavaFileCompiler(config, classpath, executor).compile(["polop/MyClass.java", "a/pif.java"])
		self.assertEquals(["polop/MyClass.class", "a/pif.class"], result)

	def testRaisesExceptionInCaseCompilationFails(self):
		"JavaFileCompiler - raises exception in case compilation fails"
		executor = pmock.Mock()
		config = pmock.Mock()
		classpath = pmock.Mock()
		config.expects(pmock.once()).method("get").will(pmock.return_value(""))
		classpath.expects(pmock.once()).getClasspath().will(pmock.return_value("myclasspath"))
		executor.expects(pmock.once()).method("run").will(pmock.return_value(1))
		try:
			result = JavaFileCompiler(config, classpath, executor).compile(["polop/MyClass.java"])
			self.fail("Should have raised an exception")
		except Exception, e:
			self.assertEquals("Sorry, an exception occured in the compilation process", str(e))

class JavaTestLauncherTest(unittest.TestCase):
	def testCanLaunchAndReturnOK(self):
		"JavaTestLauncher - can launch a file and returns OK if executor returns OK"
		executor = pmock.Mock()
		config = pmock.Mock()
		classpath = pmock.Mock()
		config.expects(pmock.once()).get(pmock.eq("java_command")).will(pmock.return_value("myJava"))
		config.expects(pmock.once()).get(pmock.eq("output_folder")).will(pmock.return_value("myOutput"))
		classpath.expects(pmock.once()).getClasspath().will(pmock.return_value("myclasspath"))
		classpath.expects(pmock.once()).addDirectory(pmock.eq("."))
		classpath.expects(pmock.once()).removeDirectory(pmock.eq("."))
		executor.expects(pmock.once()).run(pmock.eq("myJava -Dconcordion.output.dir=myOutput -cp myclasspath junit.textui.TestRunner polop.MyClass"), pmock.eq(True)).will(pmock.return_value(0))

		result = JavaTestLauncher(config, classpath, executor, ".").launch("polop/MyClass.class")
		self.assertEquals(0, result)

	def testAddsAndRemovesDirectoriesFromClasspath(self):
		"JavaTestLauncher - when launching a file it adds the directory to the classpath and removes it after"
		mock = pmock.Mock()
		mock.expects(pmock.once()).get(pmock.eq("java_command")).will(pmock.return_value("myJava"))
		mock.expects(pmock.once()).get(pmock.eq("output_folder")).will(pmock.return_value("myOutput"))

		mock.expects(pmock.once()).addDirectory(pmock.eq(".")).id("add")
		mock.expects(pmock.once()).getClasspath().will(pmock.return_value("myclasspath;.")).after("add").id("getPath")
		mock.expects(pmock.once()).run(pmock.eq("myJava -Dconcordion.output.dir=myOutput -cp myclasspath;. junit.textui.TestRunner polop.MyClass"), pmock.eq(True)) \
			.will(pmock.return_value(0)).id("exec").after("getPath")
		mock.expects(pmock.once()).removeDirectory(pmock.eq(".")).after("exec")

		JavaTestLauncher(mock, mock, mock, ".").launch("polop/MyClass.class")

	def testCanLaunchAndReturnFailure(self):
		"JavaTestLauncher - can launch a file and return a non zero code in case of failure"
		executor = pmock.Mock()
		config = pmock.Mock()
		classpath = pmock.Mock()
		config.expects(pmock.once()).get(pmock.eq("java_command")).will(pmock.return_value(""))
		config.expects(pmock.once()).get(pmock.eq("output_folder")).will(pmock.return_value(""))
		classpath.expects(pmock.once()).getClasspath().will(pmock.return_value(""))
		classpath.expects(pmock.once()).addDirectory(pmock.eq(""))
		classpath.expects(pmock.once()).removeDirectory(pmock.eq(""))
		executor.expects(pmock.once()).method("run").will(pmock.return_value(1))
		result = JavaTestLauncher(config, classpath, executor, "").launch("")
		self.assertEquals(1, result)




def _createFile(name, content):
		file(name, "w").write(content)
		return os.path.abspath(name);