def test_promptOpenFailed(self):
"""
If the C{opener} passed to L{ConsoleUI} raises an exception, that
exception will fail the L{Deferred} returned from L{ConsoleUI.prompt}.
"""
def raiseIt():
raise IOError()
ui = ConsoleUI(raiseIt)
l = []
ui.prompt("This is a test.").addErrback(l.append)
l[0].trap(IOError)
def test_promptOpenFailed(self):
"""
If the C{opener} passed to L{ConsoleUI} raises an exception, that
exception will fail the L{Deferred} returned from L{ConsoleUI.prompt}.
"""
def raiseIt():
raise IOError()
ui = ConsoleUI(raiseIt)
l = []
ui.prompt("This is a test.").addErrback(l.append)
l[0].trap(IOError)
def test_promptOpenFailed(self):
"""
If the C{opener} passed to L{ConsoleUI} raises an exception, that
exception will fail the L{Deferred} returned from L{ConsoleUI.prompt}.
"""
def raiseIt():
raise IOError()
ui = ConsoleUI(raiseIt)
d = ui.prompt("This is a test.")
return self.assertFailure(d, IOError)
class ConsoleUITests(TestCase):
"""
Test cases for L{ConsoleUI}.
"""
def setUp(self):
"""
Create a L{ConsoleUI} pointed at a L{FakeFile}.
"""
self.fakeFile = FakeFile()
self.ui = ConsoleUI(self.openFile)
def openFile(self):
"""
Return the current fake file.
"""
return self.fakeFile
def newFile(self, lines):
"""
Create a new fake file (the next file that self.ui will open) with the
given list of lines to be returned from readline().
"""
self.fakeFile = FakeFile()
self.fakeFile.inlines = lines
def test_promptYes(self):
"""
L{ConsoleUI.prompt} writes a message to the console, then reads a line.
If that line is 'yes', then it returns a L{Deferred} that fires with
True.
"""
for okYes in ['yes', 'Yes', 'yes\n']:
self.newFile([okYes])
l = []
self.ui.prompt("Hello, world!").addCallback(l.append)
self.assertEqual(["Hello, world!"], self.fakeFile.outchunks)
self.assertEqual([True], l)
self.assertEqual(True, self.fakeFile.closed)
def test_promptNo(self):
"""
L{ConsoleUI.prompt} writes a message to the console, then reads a line.
If that line is 'no', then it returns a L{Deferred} that fires with
False.
"""
for okNo in ['no', 'No', 'no\n']:
self.newFile([okNo])
l = []
self.ui.prompt("Goodbye, world!").addCallback(l.append)
self.assertEqual(["Goodbye, world!"], self.fakeFile.outchunks)
self.assertEqual([False], l)
self.assertEqual(True, self.fakeFile.closed)
def test_promptRepeatedly(self):
"""
L{ConsoleUI.prompt} writes a message to the console, then reads a line.
If that line is neither 'yes' nor 'no', then it says "Please enter
'yes' or 'no'" until it gets a 'yes' or a 'no', at which point it
returns a Deferred that answers either True or False.
"""
self.newFile(['what', 'uh', 'okay', 'yes'])
l = []
self.ui.prompt("Please say something useful.").addCallback(l.append)
self.assertEqual([True], l)
self.assertEqual(self.fakeFile.outchunks,
["Please say something useful."] +
["Please type 'yes' or 'no': "] * 3)
self.assertEqual(True, self.fakeFile.closed)
self.newFile(['blah', 'stuff', 'feh', 'no'])
l = []
self.ui.prompt("Please say something negative.").addCallback(l.append)
self.assertEqual([False], l)
self.assertEqual(self.fakeFile.outchunks,
["Please say something negative."] +
["Please type 'yes' or 'no': "] * 3)
self.assertEqual(True, self.fakeFile.closed)
def test_promptOpenFailed(self):
"""
If the C{opener} passed to L{ConsoleUI} raises an exception, that
exception will fail the L{Deferred} returned from L{ConsoleUI.prompt}.
"""
def raiseIt():
raise IOError()
ui = ConsoleUI(raiseIt)
d = ui.prompt("This is a test.")
return self.assertFailure(d, IOError)
def test_warn(self):
"""
L{ConsoleUI.warn} should output a message to the console object.
"""
self.ui.warn("Test message.")
self.assertEqual(["Test message."], self.fakeFile.outchunks)
self.assertEqual(True, self.fakeFile.closed)
def test_warnOpenFailed(self):
"""
L{ConsoleUI.warn} should log a traceback if the output can't be opened.
"""
def raiseIt():
1 / 0
ui = ConsoleUI(raiseIt)
ui.warn("This message never makes it.")
self.assertEqual(len(self.flushLoggedErrors(ZeroDivisionError)), 1)
class ConsoleUITests(TestCase):
"""
Test cases for L{ConsoleUI}.
"""
def setUp(self):
"""
Create a L{ConsoleUI} pointed at a L{FakeFile}.
"""
self.fakeFile = FakeFile()
self.ui = ConsoleUI(self.openFile)
def openFile(self):
"""
Return the current fake file.
"""
return self.fakeFile
def newFile(self, lines):
"""
Create a new fake file (the next file that self.ui will open) with the
given list of lines to be returned from readline().
"""
self.fakeFile = FakeFile()
self.fakeFile.inlines = lines
def test_promptYes(self):
"""
L{ConsoleUI.prompt} writes a message to the console, then reads a line.
If that line is 'yes', then it returns a L{Deferred} that fires with
True.
"""
for okYes in ['yes', 'Yes', 'yes\n']:
self.newFile([okYes])
l = []
self.ui.prompt("Hello, world!").addCallback(l.append)
self.assertEqual(["Hello, world!"], self.fakeFile.outchunks)
self.assertEqual([True], l)
self.assertEqual(True, self.fakeFile.closed)
def test_promptNo(self):
"""
L{ConsoleUI.prompt} writes a message to the console, then reads a line.
If that line is 'no', then it returns a L{Deferred} that fires with
False.
"""
for okNo in ['no', 'No', 'no\n']:
self.newFile([okNo])
l = []
self.ui.prompt("Goodbye, world!").addCallback(l.append)
self.assertEqual(["Goodbye, world!"], self.fakeFile.outchunks)
self.assertEqual([False], l)
self.assertEqual(True, self.fakeFile.closed)
def test_promptRepeatedly(self):
"""
L{ConsoleUI.prompt} writes a message to the console, then reads a line.
If that line is neither 'yes' nor 'no', then it says "Please enter
'yes' or 'no'" until it gets a 'yes' or a 'no', at which point it
returns a Deferred that answers either True or False.
"""
self.newFile(['what', 'uh', 'okay', 'yes'])
l = []
self.ui.prompt("Please say something useful.").addCallback(l.append)
self.assertEqual([True], l)
self.assertEqual(self.fakeFile.outchunks,
["Please say something useful."] +
["Please type 'yes' or 'no': "] * 3)
self.assertEqual(True, self.fakeFile.closed)
self.newFile(['blah', 'stuff', 'feh', 'no'])
l = []
self.ui.prompt("Please say something negative.").addCallback(l.append)
self.assertEqual([False], l)
self.assertEqual(self.fakeFile.outchunks,
["Please say something negative."] +
["Please type 'yes' or 'no': "] * 3)
self.assertEqual(True, self.fakeFile.closed)
def test_promptOpenFailed(self):
"""
If the C{opener} passed to L{ConsoleUI} raises an exception, that
exception will fail the L{Deferred} returned from L{ConsoleUI.prompt}.
"""
def raiseIt():
raise IOError()
ui = ConsoleUI(raiseIt)
d = ui.prompt("This is a test.")
return self.assertFailure(d, IOError)
def test_warn(self):
"""
L{ConsoleUI.warn} should output a message to the console object.
"""
self.ui.warn("Test message.")
self.assertEqual(["Test message."], self.fakeFile.outchunks)
self.assertEqual(True, self.fakeFile.closed)
def test_warnOpenFailed(self):
"""
L{ConsoleUI.warn} should log a traceback if the output can't be opened.
"""
def raiseIt():
1 / 0
ui = ConsoleUI(raiseIt)
ui.warn("This message never makes it.")
self.assertEqual(len(self.flushLoggedErrors(ZeroDivisionError)), 1)
