port some acceptance tests over to copy_example

src/_pytest/pytester.py

@@ -635,7 +635,10 @@ class Testdir(object):
     def copy_example(self, name):
         example_dir = self.request.config.getini("pytester_example_dir")
         example_path = self.request.config.rootdir.join(example_dir, name)
-        example_path.copy(self.tmpdir.join(example_path.basename))
+        if example_path.isdir() and not example_path.join("__init__.py").isfile():
+            example_path.copy(self.tmpdir)
+        else:
+            example_path.copy(self.tmpdir.join(example_path.basename))
 
     Session = Session
 

testing/acceptance_test.py

@@ -14,13 +14,7 @@ from _pytest.main import EXIT_NOTESTSCOLLECTED, EXIT_USAGEERROR
 
 class TestGeneralUsage(object):
     def test_config_error(self, testdir):
-        testdir.makeconftest(
-            """
-            def pytest_configure(config):
-                import pytest
-                raise pytest.UsageError("hello")
-        """
-        )
+        testdir.copy_example("conftest_usageerror/conftest.py")
         result = testdir.runpytest(testdir.tmpdir)
         assert result.ret != 0
         result.stderr.fnmatch_lines(["*ERROR: hello"])
@@ -170,18 +164,7 @@ class TestGeneralUsage(object):
         result.stdout.fnmatch_lines(["*1 skip*"])
 
     def test_issue88_initial_file_multinodes(self, testdir):
-        testdir.makeconftest(
-            """
-            import pytest
-            class MyFile(pytest.File):
-                def collect(self):
-                    return [MyItem("hello", parent=self)]
-            def pytest_collect_file(path, parent):
-                return MyFile(path, parent)
-            class MyItem(pytest.Item):
-                pass
-        """
-        )
+        testdir.copy_example("issue88_initial_file_multinodes")
         p = testdir.makepyfile("def test_hello(): pass")
         result = testdir.runpytest(p, "--collect-only")
         result.stdout.fnmatch_lines(["*MyFile*test_issue88*", "*Module*test_issue88*"])

testing/example_scripts/conftest_usageerror/conftest.py

@@ -0,0 +1,4 @@
+def pytest_configure(config):
+    import pytest
+
+    raise pytest.UsageError("hello")

testing/example_scripts/issue88_initial_file_multinodes/conftest.py

@@ -0,0 +1,14 @@
+import pytest
+
+
+class MyFile(pytest.File):
+    def collect(self):
+        return [MyItem("hello", parent=self)]
+
+
+def pytest_collect_file(path, parent):
+    return MyFile(path, parent)
+
+
+class MyItem(pytest.Item):
+    pass

testing/example_scripts/issue88_initial_file_multinodes/test_hello.py

@@ -0,0 +1,2 @@
+def test_hello():
+    pass

testing/examples/test_issue519.py

@@ -0,0 +1,3 @@
+def test_510(testdir):
+    testdir.copy_example("issue_519.py")
+    testdir.runpytest("issue_519.py")