def test_jumpref_start(self):
self.db['_design/test'] = {'views': {'test': {'map': 'function(doc) {emit(doc.letter+doc.letter, null);}'}}}
self.db.update([{'letter': letter} for letter in 'abcdefghijklmnopqrstuvwxyz'])
pager = Pager(self.db.view, 'test/test')
prev, items, next, stats = t(pager.get(5, Pager.jumpref('a')))
assert items[0].key == 'aa'
prev, items, next, stats = t(pager.get(5, Pager.jumpref('aa')))
assert items[0].key == 'aa'
def test_jumpref_pageback(self):
self.db['_design/test'] = {'views': {'test': {'map': 'function(doc) {emit(doc.letter, null);}'}}}
self.db.update([{'letter': 'a'} for i in range(100)])
self.db.update([{'letter': 'b'} for i in range(100)])
pager = Pager(self.db.view, 'test/test')
prev, items, next, stats = t(pager.get(5, Pager.jumpref('b')))
assert items[0].key == 'b'
def test_jumpref(self):
self.db['_design/test'] = {'views': {'test': {'map': 'function(doc) {emit(doc.letter+doc.letter, null);}'}}}
self.db.update([{'letter': letter} for letter in 'abcdefghijklmnopqrstuvwxyz'])
pager = Pager(self.db.view, 'test/test')
p = pager.get(5)
assert p['items'][0].key == 'aa'
p = pager.get(5, Pager.jumpref('k'))
assert p['items'][0].key == 'kk'
p = pager.get(5, p['prev'])
assert p['items'][0].key == 'ff'
p = pager.get(5, p['prev'])
assert p['items'][0].key == 'aa'
assert p['prev'] is None
def test_jumpref_exact(self):
# Tests that the jump key is skipped if it is in the view
self.db['_design/test'] = {'views': {'test': {'map': 'function(doc) {emit(doc.letter, null);}'}}}
self.db.update([{'letter': letter} for letter in 'abcdefghijklmnopqrstuvwxyz'])
pager = Pager(self.db.view, 'test/test')
prev, items, next, stats = t(pager.get(5))
assert items[0].key == 'a'
prev, items, next, stats = t(pager.get(5, Pager.jumpref('k')))
assert items[0].key == 'k'
prev, items, next, stats = t(pager.get(5, prev))
assert items[0].key == 'f'
prev, items, next, stats = t(pager.get(5, prev))
assert items[0].key == 'a'
assert prev is None
