Merge commit 'c2b0355b0de23f6ec83b5fa5be038bcce208e26f' as 'waflib'

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diff --git a/waflib/extras/javatest.py b/waflib/extras/javatest.py
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+#! /usr/bin/env python
+# encoding: utf-8
+# Federico Pellegrin, 2017 (fedepell)
+
+"""
+Provides Java Unit test support using :py:class:`waflib.Tools.waf_unit_test.utest`
+task via the **javatest** feature.
+
+This gives the possibility to run unit test and have them integrated into the
+standard waf unit test environment. It has been tested with TestNG and JUnit
+but should be easily expandable to other frameworks given the flexibility of
+ut_str provided by the standard waf unit test environment.
+
+Example usage:
+
+def options(opt):
+	opt.load('java waf_unit_test javatest')
+
+def configure(conf):
+	conf.load('java javatest')
+
+def build(bld):
+	
+	[ ... mainprog is built here ... ]
+
+	bld(features = 'javac javatest',
+		srcdir     = 'test/', 
+		outdir     = 'test', 
+		sourcepath = ['test'],
+		classpath  = [ 'src' ], 
+		basedir    = 'test', 
+		use = ['JAVATEST', 'mainprog'], # mainprog is the program being tested in src/
+		ut_str = 'java -cp ${CLASSPATH} ${JTRUNNER} ${SRC}',
+		jtest_source = bld.path.ant_glob('test/*.xml'),
+	)
+
+
+At command line the CLASSPATH where to find the testing environment and the
+test runner (default TestNG) that will then be seen in the environment as
+CLASSPATH_JAVATEST (then used for use) and JTRUNNER and can be used for
+dependencies and ut_str generation.
+
+Example configure for TestNG:
+	waf configure --jtpath=/tmp/testng-6.12.jar:/tmp/jcommander-1.71.jar --jtrunner=org.testng.TestNG
+		 or as default runner is TestNG:
+	waf configure --jtpath=/tmp/testng-6.12.jar:/tmp/jcommander-1.71.jar
+
+Example configure for JUnit:
+	waf configure --jtpath=/tmp/junit.jar --jtrunner=org.junit.runner.JUnitCore
+
+The runner class presence on the system is checked for at configuration stage.
+
+"""
+
+import os
+from waflib import Task, TaskGen, Options
+
+@TaskGen.feature('javatest')
+@TaskGen.after_method('apply_java', 'use_javac_files', 'set_classpath')
+def make_javatest(self):
+	"""
+	Creates a ``utest`` task with a populated environment for Java Unit test execution
+
+	"""
+	tsk = self.create_task('utest')
+	tsk.set_run_after(self.javac_task)
+
+	# Put test input files as waf_unit_test relies on that for some prints and log generation
+	# If jtest_source is there, this is specially useful for passing XML for TestNG
+	# that contain test specification, use that as inputs, otherwise test sources
+	if getattr(self, 'jtest_source', None):
+		tsk.inputs = self.to_nodes(self.jtest_source)
+	else:
+		if self.javac_task.srcdir[0].exists():
+			tsk.inputs = self.javac_task.srcdir[0].ant_glob('**/*.java', remove=False)
+
+	if getattr(self, 'ut_str', None):
+		self.ut_run, lst = Task.compile_fun(self.ut_str, shell=getattr(self, 'ut_shell', False))
+		tsk.vars = lst + tsk.vars
+
+	if getattr(self, 'ut_cwd', None):
+		if isinstance(self.ut_cwd, str):
+			# we want a Node instance
+			if os.path.isabs(self.ut_cwd):
+				self.ut_cwd = self.bld.root.make_node(self.ut_cwd)
+			else:
+				self.ut_cwd = self.path.make_node(self.ut_cwd)
+	else:
+		self.ut_cwd = self.bld.bldnode
+
+	# Get parent CLASSPATH and add output dir of test, we run from wscript dir
+	# We have to change it from list to the standard java -cp format (: separated)
+	tsk.env.CLASSPATH = ':'.join(self.env.CLASSPATH) + ':' + self.outdir.abspath()
+
+	if not self.ut_cwd.exists():
+		self.ut_cwd.mkdir()
+
+	if not hasattr(self, 'ut_env'):
+		self.ut_env = dict(os.environ)
+
+def configure(ctx):
+	cp = ctx.env.CLASSPATH or '.'
+	if getattr(Options.options, 'jtpath', None):
+		ctx.env.CLASSPATH_JAVATEST = getattr(Options.options, 'jtpath').split(':')
+		cp += ':' + getattr(Options.options, 'jtpath')
+
+	if getattr(Options.options, 'jtrunner', None):
+		ctx.env.JTRUNNER = getattr(Options.options, 'jtrunner')
+
+	if ctx.check_java_class(ctx.env.JTRUNNER, with_classpath=cp):
+		ctx.fatal('Could not run test class %r' % ctx.env.JTRUNNER)
+
+def options(opt):
+	opt.add_option('--jtpath', action='store', default='', dest='jtpath',
+		help='Path to jar(s) needed for javatest execution, colon separated, if not in the system CLASSPATH')
+	opt.add_option('--jtrunner', action='store', default='org.testng.TestNG', dest='jtrunner',
+		help='Class to run javatest test [default: org.testng.TestNG]')
+