Manual test plugin for parts of the update mechanism

tests/manual_tests/always_update.py

@@ -0,0 +1,86 @@
+# coding=utf-8
+from __future__ import print_function
+
+"""
+Place in ~/.octoprint/plugins & restart server to test:
+
+  * python_checker and python_updater mechanism
+  * demotion of pip and python setup.py clean output that
+    gets written to stderr but isn't as severe as that would
+    look
+
+Plugin will always demand to update itself, multiple
+consecutive runs are not a problem.
+"""
+
+import time
+
+NAME = "Always Update"
+OLD_VERSION = "1.0.0"
+NEW_VERSION = "2.0.0"
+
+
+class Foo(object):
+	def get_latest(self, target, check, full_data=None):
+		information = dict(local=dict(name=OLD_VERSION, value=OLD_VERSION),
+		                   remote=dict(name=NEW_VERSION, value=NEW_VERSION))
+		current = False
+		return information, current
+
+	def can_perform_update(self, target, check):
+		return True
+
+	def perform_update(self, target, check, target_version, log_cb=None):
+		if not callable(log_cb):
+			import sys
+			def log_cb(lines, prefix=None, stream=None, strip=True):
+				if stream == "stdout":
+					f = sys.stdout
+				elif stream == "stderr":
+					f = sys.stderr
+				else:
+					f = None
+
+				for line in lines:
+					print(line, file=f)
+
+		log_cb(["Updating Always Update..."])
+		time.sleep(1)
+		log_cb(["running clean",
+		        "recursively removing *.pyc from 'src'"],
+		       stream="stdout")
+		log_cb(["'build/lib' does not exist -- can't clean it",
+		        "'build/bdist.win32' does not exist -- can't clean it",
+		        "'build/scripts-2.7' does not exist -- can't clean it"],
+		       stream="stderr")
+		log_cb(["removing 'Development\OctoPrint\OctoPrint\src\octoprint_setuptools\__init__.pyc'"],
+		       stream="stdout")
+		time.sleep(1)
+		log_cb(["This should be red"],
+		       stream="stderr")
+		log_cb(["You are using pip version 7.1.2, however version 9.0.1 is available.",
+		        "You should consider upgrading via the 'python -m pip install --upgrade pip' command."],
+		       stream="stderr")
+		time.sleep(3)
+		log_cb(["Done!"])
+
+
+def get_update_information():
+	foo = Foo()
+	return dict(
+		always_update=dict(
+			displayName=NAME,
+			displayVersion=OLD_VERSION,
+
+			type="python_checker",
+			python_checker=foo,
+
+			python_updater=foo
+		)
+	)
+
+
+__plugin_name__ = NAME
+__plugin_hooks__ = {
+	"octoprint.plugin.softwareupdate.check_config": get_update_information,
+}