Add captured stdout to jUnit report on setup error

_pytest/junitxml.py

@@ -163,6 +163,7 @@ class _NodeReporter(object):
     def append_error(self, report):
         self._add_simple(
             Junit.error, "test setup failure", report.longrepr)
+        self._write_captured_output(report)
 
     def append_skipped(self, report):
         if hasattr(report, "wasxfail"):

testing/test_junitxml.py

@@ -419,6 +419,35 @@ class TestPython:
         systemout = pnode.find_first_by_tag("system-err")
         assert "hello-stderr" in systemout.toxml()
 
+    def test_setup_error_captures_stdout(self, testdir):
+        testdir.makepyfile("""
+            def pytest_funcarg__arg(request):
+                print('hello-stdout')
+                raise ValueError()
+            def test_function(arg):
+                pass
+        """)
+        result, dom = runandparse(testdir)
+        node = dom.find_first_by_tag("testsuite")
+        pnode = node.find_first_by_tag("testcase")
+        systemout = pnode.find_first_by_tag("system-out")
+        assert "hello-stdout" in systemout.toxml()
+
+    def test_setup_error_captures_stderr(self, testdir):
+        testdir.makepyfile("""
+            import sys
+            def pytest_funcarg__arg(request):
+                sys.stderr.write('hello-stderr')
+                raise ValueError()
+            def test_function(arg):
+                pass
+        """)
+        result, dom = runandparse(testdir)
+        node = dom.find_first_by_tag("testsuite")
+        pnode = node.find_first_by_tag("testcase")
+        systemout = pnode.find_first_by_tag("system-err")
+        assert "hello-stderr" in systemout.toxml()
+
 
 def test_mangle_testnames():
     from _pytest.junitxml import mangle_testnames