bpython/bpython/test/test_history.py at master · flyingfishfuse/bpython · GitHub

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# encoding: utf-8

import io

import os

from six.moves import range

from bpython.config import getpreferredencoding

from bpython.history import History

from bpython.test import unittest

class TestHistory(unittest.TestCase):

def setUp(self):

self.history = History("#%d" % x for x in range(1000))

def test_is_at_start(self):

self.history.first()

self.assertNotEqual(self.history.index, 0)

self.assertTrue(self.history.is_at_end)

self.history.forward()

self.assertFalse(self.history.is_at_end)

def test_is_at_end(self):

self.history.last()

self.assertEqual(self.history.index, 0)

self.assertTrue(self.history.is_at_start)

self.assertFalse(self.history.is_at_end)

def test_first(self):

self.history.first()

self.assertFalse(self.history.is_at_start)

self.assertTrue(self.history.is_at_end)

def test_last(self):

self.history.last()

self.assertTrue(self.history.is_at_start)

self.assertFalse(self.history.is_at_end)

def test_back(self):

self.assertEqual(self.history.back(), "#999")

self.assertNotEqual(self.history.back(), "#999")

self.assertEqual(self.history.back(), "#997")

for x in range(997):

self.history.back()

self.assertEqual(self.history.back(), "#0")

def test_forward(self):

self.history.first()

self.assertEqual(self.history.forward(), "#1")

self.assertNotEqual(self.history.forward(), "#1")

self.assertEqual(self.history.forward(), "#3")

# 1000 == entries 4 == len(range(1, 3) ===> '#1000' (so +1)

for x in range(1000 - 4 - 1):

self.history.forward()

self.assertEqual(self.history.forward(), "#999")

def test_append(self):

self.history.append('print "foo\n"\n')

self.history.append("\n")

self.assertEqual(self.history.back(), 'print "foo\n"')

def test_enter(self):

self.history.enter("#lastnumber!")

self.assertEqual(self.history.back(), "#lastnumber!")

self.assertEqual(self.history.forward(), "#lastnumber!")

def test_enter_2(self):

self.history.enter("#50")

self.assertEqual(self.history.back(), "#509")

self.assertEqual(self.history.back(), "#508")

self.assertEqual(self.history.forward(), "#509")

def test_reset(self):

self.history.enter("#lastnumber!")

self.history.reset()

self.assertEqual(self.history.back(), "#999")

self.assertEqual(self.history.forward(), "")

class TestHistoryFileAccess(unittest.TestCase):

def setUp(self):

self.filename = "history_temp_file"

self.encoding = getpreferredencoding()

with io.open(

self.filename, "w", encoding=self.encoding, errors="ignore"

) as f:

f.write(b"#1\n#2\n".decode())

def test_load(self):

history = History()

history.load(self.filename, self.encoding)

self.assertEqual(history.entries, ["#1", "#2"])

def test_append_reload_and_write(self):

history = History()

history.append_reload_and_write("#3", self.filename, self.encoding)

self.assertEqual(history.entries, ["#1", "#2", "#3"])

history.append_reload_and_write("#4", self.filename, self.encoding)

self.assertEqual(history.entries, ["#1", "#2", "#3", "#4"])

def test_save(self):

history = History()

history.entries = []

for line in ["#1", "#2", "#3", "#4"]:

history.append_to(history.entries, line)

# save only last 2 lines

history.save(self.filename, self.encoding, lines=2)

# empty the list of entries and load again from the file

history.entries = [""]

history.load(self.filename, self.encoding)

self.assertEqual(history.entries, ["#3", "#4"])

def tearDown(self):

try:

os.remove(self.filename)

except OSError:

pass

bpython/bpython/test/test_history.py at master · flyingfishfuse/bpython · GitHub

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