FIX #1: universal_newlines and add tests around flamegrph.pl

Makefile

@@ -7,14 +7,15 @@ endef
 
 VERSION ?= $(shell python -c '$(VERSION_SCR)')
 EXBIN = example/env/bin
+PYTHON ?= python
 
 all: test
 
 example: example/env
 	$(EXBIN)/python example/manage.py runserver --nothreading --noreload
 
 example/env:
-	virtualenv example/env
+	virtualenv --python=$(PYTHON) example/env
 	$(EXBIN)/pip install -r example/requirements.txt
 	$(EXBIN)/pip install -e `pwd`
 	$(EXBIN)/python example/manage.py migrate
@@ -43,7 +44,7 @@ lint:
 	flake8 djdt_flamegraph tests
 
 test:
-	tox -e py27
+	tox
 
 release:
 	@$(MAKE) test

djdt_flamegraph/flamegraph.pl

@@ -598,7 +598,6 @@ sub flow {
 <![CDATA[
     var details, searchbtn, matchedtxt, svg;
     function init(evt) {
-        console.log('yo')
         details = document.getElementById("details").firstChild;
         searchbtn = document.getElementById("search");
         matchedtxt = document.getElementById("matched");

djdt_flamegraph/flamegraph.py

@@ -11,6 +11,7 @@ def stats_to_svg(stats):
         args=[FLAMEGRAPH_PL, '--title', ' '],
         stdout=subprocess.PIPE,
         stdin=subprocess.PIPE,
-        stderr=subprocess.STDOUT)
+        stderr=subprocess.STDOUT,
+        universal_newlines=True)
     out, _ = proc.communicate(stats)
     return out

setup.py

@@ -16,7 +16,7 @@
 
 setup(
     name='djdt_flamegraph',
-    version='0.2.7',
+    version='0.2.9',
     description='Flamegraphs for Django Debug Toolbar',
     long_description=readme + '\n\n' + history,
     author='Bo Lopker',

tests/test_djdt_flamegraph.py

@@ -9,15 +9,18 @@
 
 from djdt_flamegraph import djdt_flamegraph
 from djdt_flamegraph import FlamegraphPanel
+from djdt_flamegraph import flamegraph
 
 
 class TestDjdtFlamegraph(unittest.TestCase):
 
     def setUp(self):
         pass
 
-    def tearDown(self):
-        pass
+    def test_subprocess(self):
+        stack = 'unix`_sys_sysenter_post_swapgs;genunix`close 5'
+        res = flamegraph.stats_to_svg(stack)
+        self.assertIn('svg version="1.1"', res)
 
     def test_000_something(self):
         pass