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+" Tests for the List and Dict types
+
+func TearDown()
+ " Run garbage collection after every test
+ call test_garbagecollect_now()
+endfunc
+
+" Tests for List type
+
+" List creation
+func Test_list_create()
+ " Creating List directly with different types
+ let l = [1, 'as''d', [1, 2, function("strlen")], {'a': 1},]
+ call assert_equal("[1, 'as''d', [1, 2, function('strlen')], {'a': 1}]", string(l))
+ call assert_equal({'a' : 1}, l[-1])
+ call assert_equal(1, l[-4])
+ let x = 10
+ try
+ let x = l[-5]
+ catch
+ call assert_match('E684:', v:exception)
+ endtry
+ call assert_equal(10, x)
+endfunc
+
+" List slices
+func Test_list_slice()
+ let l = [1, 'as''d', [1, 2, function("strlen")], {'a': 1},]
+ call assert_equal([1, 'as''d', [1, 2, function('strlen')], {'a': 1}], l[:])
+ call assert_equal(['as''d', [1, 2, function('strlen')], {'a': 1}], l[1:])
+ call assert_equal([1, 'as''d', [1, 2, function('strlen')]], l[:-2])
+ call assert_equal([1, 'as''d', [1, 2, function('strlen')], {'a': 1}], l[0:8])
+ call assert_equal([], l[8:-1])
+endfunc
+
+" List identity
+func Test_list_identity()
+ let l = [1, 'as''d', [1, 2, function("strlen")], {'a': 1},]
+ let ll = l
+ let lx = copy(l)
+ call assert_true(l == ll)
+ call assert_false(l isnot ll)
+ call assert_true(l is ll)
+ call assert_true(l == lx)
+ call assert_false(l is lx)
+ call assert_true(l isnot lx)
+endfunc
+
+" removing items with :unlet
+func Test_list_unlet()
+ let l = [1, 'as''d', [1, 2, function("strlen")], {'a': 1},]
+ unlet l[2]
+ call assert_equal([1, 'as''d', {'a': 1}], l)
+ let l = range(8)
+ unlet l[:3]
+ unlet l[1:]
+ call assert_equal([4], l)
+
+ " removing items out of range: silently skip items that don't exist
+ let l = [0, 1, 2, 3]
+ call assert_fails('unlet l[2:1]', 'E684')
+ let l = [0, 1, 2, 3]
+ unlet l[2:2]
+ call assert_equal([0, 1, 3], l)
+ let l = [0, 1, 2, 3]
+ unlet l[2:3]
+ call assert_equal([0, 1], l)
+ let l = [0, 1, 2, 3]
+ unlet l[2:4]
+ call assert_equal([0, 1], l)
+ let l = [0, 1, 2, 3]
+ unlet l[2:5]
+ call assert_equal([0, 1], l)
+ let l = [0, 1, 2, 3]
+ call assert_fails('unlet l[-1:2]', 'E684')
+ let l = [0, 1, 2, 3]
+ unlet l[-2:2]
+ call assert_equal([0, 1, 3], l)
+ let l = [0, 1, 2, 3]
+ unlet l[-3:2]
+ call assert_equal([0, 3], l)
+ let l = [0, 1, 2, 3]
+ unlet l[-4:2]
+ call assert_equal([3], l)
+ let l = [0, 1, 2, 3]
+ unlet l[-5:2]
+ call assert_equal([3], l)
+ let l = [0, 1, 2, 3]
+ unlet l[-6:2]
+ call assert_equal([3], l)
+endfunc
+
+" assignment to a list
+func Test_list_assign()
+ let l = [0, 1, 2, 3]
+ let [va, vb] = l[2:3]
+ call assert_equal([2, 3], [va, vb])
+ call assert_fails('let [va, vb] = l', 'E687')
+ call assert_fails('let [va, vb] = l[1:1]', 'E688')
+endfunc
+
+" test for range assign
+func Test_list_range_assign()
+ let l = [0]
+ let l[:] = [1, 2]
+ call assert_equal([1, 2], l)
+endfunc
+
+" Test removing items in list
+func Test_list_func_remove()
+ " Test removing 1 element
+ let l = [1, 2, 3, 4]
+ call assert_equal(1, remove(l, 0))
+ call assert_equal([2, 3, 4], l)
+
+ let l = [1, 2, 3, 4]
+ call assert_equal(2, remove(l, 1))
+ call assert_equal([1, 3, 4], l)
+
+ let l = [1, 2, 3, 4]
+ call assert_equal(4, remove(l, -1))
+ call assert_equal([1, 2, 3], l)
+
+ " Test removing range of element(s)
+ let l = [1, 2, 3, 4]
+ call assert_equal([3], remove(l, 2, 2))
+ call assert_equal([1, 2, 4], l)
+
+ let l = [1, 2, 3, 4]
+ call assert_equal([2, 3], remove(l, 1, 2))
+ call assert_equal([1, 4], l)
+
+ let l = [1, 2, 3, 4]
+ call assert_equal([2, 3], remove(l, -3, -2))
+ call assert_equal([1, 4], l)
+
+ " Test invalid cases
+ let l = [1, 2, 3, 4]
+ call assert_fails("call remove(l, 5)", 'E684:')
+ call assert_fails("call remove(l, 1, 5)", 'E684:')
+ call assert_fails("call remove(l, 3, 2)", 'E16:')
+ call assert_fails("call remove(1, 0)", 'E896:')
+ call assert_fails("call remove(l, l)", 'E745:')
+endfunc
+
+" Tests for Dictionary type
+
+func Test_dict()
+ " Creating Dictionary directly with different types
+ let d = {001: 'asd', 'b': [1, 2, function('strlen')], -1: {'a': 1},}
+ call assert_equal("{'1': 'asd', 'b': [1, 2, function('strlen')], '-1': {'a': 1}}", string(d))
+ call assert_equal('asd', d.1)
+ call assert_equal(['-1', '1', 'b'], sort(keys(d)))
+ call assert_equal(['asd', [1, 2, function('strlen')], {'a': 1}], values(d))
+ let v = []
+ for [key, val] in items(d)
+ call extend(v, [key, val])
+ unlet key val
+ endfor
+ call assert_equal(['1','asd','b',[1, 2, function('strlen')],'-1',{'a': 1}], v)
+
+ call extend(d, {3:33, 1:99})
+ call extend(d, {'b':'bbb', 'c':'ccc'}, "keep")
+ call assert_fails("call extend(d, {3:333,4:444}, 'error')", 'E737')
+ call assert_equal({'c': 'ccc', '1': 99, 'b': [1, 2, function('strlen')], '3': 33, '-1': {'a': 1}}, d)
+ call filter(d, 'v:key =~ ''[ac391]''')
+ call assert_equal({'c': 'ccc', '1': 99, '3': 33, '-1': {'a': 1}}, d)
+endfunc
+
+" Dictionary identity
+func Test_dict_identity()
+ let d = {001: 'asd', 'b': [1, 2, function('strlen')], -1: {'a': 1},}
+ let dd = d
+ let dx = copy(d)
+ call assert_true(d == dd)
+ call assert_false(d isnot dd)
+ call assert_true(d is dd)
+ call assert_true(d == dx)
+ call assert_false(d is dx)
+ call assert_true(d isnot dx)
+endfunc
+
+" removing items with :unlet
+func Test_dict_unlet()
+ let d = {'b':'bbb', '1': 99, '3': 33, '-1': {'a': 1}}
+ unlet d.b
+ unlet d[-1]
+ call assert_equal({'1': 99, '3': 33}, d)
+endfunc
+
+" manipulating a big Dictionary (hashtable.c has a border of 1000 entries)
+func Test_dict_big()
+ let d = {}
+ for i in range(1500)
+ let d[i] = 3000 - i
+ endfor
+ call assert_equal([3000, 2900, 2001, 1600, 1501], [d[0], d[100], d[999], d[1400], d[1499]])
+ let str = ''
+ try
+ let n = d[1500]
+ catch
+ let str=substitute(v:exception, '\v(.{14}).*( \d{4}).*', '\1\2', '')
+ endtry
+ call assert_equal('Vim(let):E716: 1500', str)
+
+ " lookup each items
+ for i in range(1500)
+ call assert_equal(3000 - i, d[i])
+ endfor
+ let i += 1
+
+ " delete even items
+ while i >= 2
+ let i -= 2
+ unlet d[i]
+ endwhile
+ call assert_equal('NONE', get(d, 1500 - 100, 'NONE'))
+ call assert_equal(2999, d[1])
+
+ " delete odd items, checking value, one intentionally wrong
+ let d[33] = 999
+ let i = 1
+ while i < 1500
+ if i != 33
+ call assert_equal(3000 - i, d[i])
+ else
+ call assert_equal(999, d[i])
+ endif
+ unlet d[i]
+ let i += 2
+ endwhile
+ call assert_equal({}, d)
+ unlet d
+endfunc
+
+" Dictionary function
+func Test_dict_func()
+ let d = {}
+ func d.func(a) dict
+ return a:a . len(self.data)
+ endfunc
+ let d.data = [1,2,3]
+ call assert_equal('len: 3', d.func('len: '))
+ let x = d.func('again: ')
+ call assert_equal('again: 3', x)
+ let Fn = d.func
+ call assert_equal('xxx3', Fn('xxx'))
+endfunc
+
+" Function in script-local List or Dict
+func Test_script_local_dict_func()
+ let g:dict = {}
+ function g:dict.func() dict
+ return 'g:dict.func' . self.foo[1] . self.foo[0]('asdf')
+ endfunc
+ let g:dict.foo = ['-', 2, 3]
+ call insert(g:dict.foo, function('strlen'))
+ call assert_equal('g:dict.func-4', g:dict.func())
+ unlet g:dict
+endfunc
+
+" Test removing items in la dictionary
+func Test_dict_func_remove()
+ let d = {1:'a', 2:'b', 3:'c'}
+ call assert_equal('b', remove(d, 2))
+ call assert_equal({1:'a', 3:'c'}, d)
+
+ call assert_fails("call remove(d, 1, 2)", 'E118:')
+ call assert_fails("call remove(d, 'a')", 'E716:')
+ call assert_fails("call remove(d, [])", 'E730:')
+endfunc
+
+" Nasty: remove func from Dict that's being called (works)
+func Test_dict_func_remove_in_use()
+ let d = {1:1}
+ func d.func(a)
+ return "a:" . a:a
+ endfunc
+ let expected = 'a:' . string(get(d, 'func'))
+ call assert_equal(expected, d.func(string(remove(d, 'func'))))
+endfunc
+
+" Nasty: deepcopy() dict that refers to itself (fails when noref used)
+func Test_dict_deepcopy()
+ let d = {1:1, 2:2}
+ let l = [4, d, 6]
+ let d[3] = l
+ let dc = deepcopy(d)
+ call assert_fails('call deepcopy(d, 1)', 'E698')
+ let l2 = [0, l, l, 3]
+ let l[1] = l2
+ let l3 = deepcopy(l2)
+ call assert_true(l3[1] is l3[2])
+endfunc
+
+" Locked variables
+func Test_list_locked_var()
+ let expected = [
+ \ [['0000-000', 'ppppppp'],
+ \ ['0000-000', 'ppppppp'],
+ \ ['0000-000', 'ppppppp']],
+ \ [['1000-000', 'ppppppF'],
+ \ ['0000-000', 'ppppppp'],
+ \ ['0000-000', 'ppppppp']],
+ \ [['1100-100', 'ppFppFF'],
+ \ ['0000-000', 'ppppppp'],
+ \ ['0000-000', 'ppppppp']],
+ \ [['1110-110', 'pFFpFFF'],
+ \ ['0010-010', 'pFppFpp'],
+ \ ['0000-000', 'ppppppp']],
+ \ [['1111-111', 'FFFFFFF'],
+ \ ['0011-011', 'FFpFFpp'],
+ \ ['0000-000', 'ppppppp']]
+ \ ]
+ for depth in range(5)
+ for u in range(3)
+ unlet! l
+ let l = [0, [1, [2, 3]], {4: 5, 6: {7: 8}}]
+ exe "lockvar " . depth . " l"
+ if u == 1
+ exe "unlockvar l"
+ elseif u == 2
+ exe "unlockvar " . depth . " l"
+ endif
+ let ps = islocked("l").islocked("l[1]").islocked("l[1][1]").islocked("l[1][1][0]").'-'.islocked("l[2]").islocked("l[2]['6']").islocked("l[2]['6'][7]")
+ call assert_equal(expected[depth][u][0], ps)
+ let ps = ''
+ try
+ let l[1][1][0] = 99
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ let l[1][1] = [99]
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ let l[1] = [99]
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ let l[2]['6'][7] = 99
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ let l[2][6] = {99: 99}
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ let l[2] = {99: 99}
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ let l = [99]
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ call assert_equal(expected[depth][u][1], ps)
+ endfor
+ endfor
+endfunc
+
+" Unletting locked variables
+func Test_list_locked_var_unlet()
+ let expected = [
+ \ [['0000-000', 'ppppppp'],
+ \ ['0000-000', 'ppppppp'],
+ \ ['0000-000', 'ppppppp']],
+ \ [['1000-000', 'ppFppFp'],
+ \ ['0000-000', 'ppppppp'],
+ \ ['0000-000', 'ppppppp']],
+ \ [['1100-100', 'pFFpFFp'],
+ \ ['0000-000', 'ppppppp'],
+ \ ['0000-000', 'ppppppp']],
+ \ [['1110-110', 'FFFFFFp'],
+ \ ['0010-010', 'FppFppp'],
+ \ ['0000-000', 'ppppppp']],
+ \ [['1111-111', 'FFFFFFp'],
+ \ ['0011-011', 'FppFppp'],
+ \ ['0000-000', 'ppppppp']]
+ \ ]
+
+ for depth in range(5)
+ for u in range(3)
+ unlet! l
+ let l = [0, [1, [2, 3]], {4: 5, 6: {7: 8}}]
+ exe "lockvar " . depth . " l"
+ if u == 1
+ exe "unlockvar l"
+ elseif u == 2
+ exe "unlockvar " . depth . " l"
+ endif
+ let ps = islocked("l").islocked("l[1]").islocked("l[1][1]").islocked("l[1][1][0]").'-'.islocked("l[2]").islocked("l[2]['6']").islocked("l[2]['6'][7]")
+ call assert_equal(expected[depth][u][0], ps)
+ let ps = ''
+ try
+ unlet l[2]['6'][7]
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ unlet l[2][6]
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ unlet l[2]
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ unlet l[1][1][0]
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ unlet l[1][1]
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ unlet l[1]
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ try
+ unlet l
+ let ps .= 'p'
+ catch
+ let ps .= 'F'
+ endtry
+ call assert_equal(expected[depth][u][1], ps)
+ endfor
+ endfor
+endfunc
+
+" Locked variables and :unlet or list / dict functions
+
+" No :unlet after lock on dict:
+func Test_dict_lock_unlet()
+ unlet! d
+ let d = {'a': 99, 'b': 100}
+ lockvar 1 d
+ call assert_fails('unlet d.a', 'E741')
+endfunc
+
+" unlet after lock on dict item
+func Test_dict_item_lock_unlet()
+ unlet! d
+ let d = {'a': 99, 'b': 100}
+ lockvar d.a
+ unlet d.a
+ call assert_equal({'b' : 100}, d)
+endfunc
+
+" filter() after lock on dict item
+func Test_dict_lock_filter()
+ unlet! d
+ let d = {'a': 99, 'b': 100}
+ lockvar d.a
+ call filter(d, 'v:key != "a"')
+ call assert_equal({'b' : 100}, d)
+endfunc
+
+" map() after lock on dict
+func Test_dict_lock_map()
+ unlet! d
+ let d = {'a': 99, 'b': 100}
+ lockvar 1 d
+ call map(d, 'v:val + 200')
+ call assert_equal({'a' : 299, 'b' : 300}, d)
+endfunc
+
+" No extend() after lock on dict item
+func Test_dict_lock_extend()
+ unlet! d
+ let d = {'a': 99, 'b': 100}
+ lockvar d.a
+ call assert_fails("call extend(d, {'a' : 123})", 'E741')
+ call assert_equal({'a': 99, 'b': 100}, d)
+endfunc
+
+" No remove() of write-protected scope-level variable
+func Tfunc1(this_is_a_long_parameter_name)
+ call assert_fails("call remove(a:, 'this_is_a_long_parameter_name')", 'E795')
+endfunc
+func Test_dict_scope_var_remove()
+ call Tfunc1('testval')
+endfunc
+
+" No extend() of write-protected scope-level variable
+func Tfunc2(this_is_a_long_parameter_name)
+ call assert_fails("call extend(a:, {'this_is_a_long_parameter_name': 1234})", 'E742')
+endfunc
+func Test_dict_scope_var_extend()
+ call Tfunc2('testval')
+endfunc
+
+" No :unlet of variable in locked scope
+func Test_lock_var_unlet()
+ let b:testvar = 123
+ lockvar 1 b:
+ call assert_fails('unlet b:testvar', 'E741:')
+ unlockvar 1 b:
+ unlet! b:testvar
+endfunc
+
+" No :let += of locked list variable
+func Test_let_lock_list()
+ let l = ['a', 'b', 3]
+ lockvar 1 l
+ call assert_fails("let l += ['x']", 'E741:')
+ call assert_equal(['a', 'b', 3], l)
+
+ unlet l
+ let l = [1, 2, 3, 4]
+ lockvar! l
+ call assert_equal([1, 2, 3, 4], l)
+ unlockvar l[1]
+ call assert_fails('unlet l[0:1]', 'E741:')
+ call assert_equal([1, 2, 3, 4], l)
+ call assert_fails('unlet l[1:2]', 'E741:')
+ call assert_equal([1, 2, 3, 4], l)
+ unlockvar l[1]
+ call assert_fails('let l[0:1] = [0, 1]', 'E741:')
+ call assert_equal([1, 2, 3, 4], l)
+ call assert_fails('let l[1:2] = [0, 1]', 'E741:')
+ call assert_equal([1, 2, 3, 4], l)
+ unlet l
+endfunc
+
+" lockvar/islocked() triggering script autoloading
+func Test_lockvar_script_autoload()
+ let old_rtp = &rtp
+ set rtp+=./sautest
+ lockvar g:footest#x
+ unlockvar g:footest#x
+ call assert_equal(-1, islocked('g:footest#x'))
+ call assert_equal(0, exists('g:footest#x'))
+ call assert_equal(1, g:footest#x)
+ let &rtp = old_rtp
+endfunc
+
+" a:000 function argument test
+func s:arg_list_test(...)
+ call assert_fails('let a:000 = [1, 2]', 'E46:')
+ call assert_fails('let a:000[0] = 9', 'E742:')
+ call assert_fails('let a:000[2] = [9, 10]', 'E742:')
+ call assert_fails('let a:000[3] = {9 : 10}', 'E742:')
+
+ " now the tests that should pass
+ let a:000[2][1] = 9
+ call extend(a:000[2], [5, 6])
+ let a:000[3][5] = 8
+ let a:000[3]['a'] = 12
+ call assert_equal([1, 2, [3, 9, 5, 6], {'a': 12, '5': 8}], a:000)
+endfunc
+
+func Test_func_arg_list()
+ call s:arg_list_test(1, 2, [3, 4], {5: 6})
+endfunc
+
+" Tests for reverse(), sort(), uniq()
+func Test_reverse_sort_uniq()
+ let l = ['-0', 'A11', 2, 2, 'xaaa', 4, 'foo', 'foo6', 'foo', [0, 1, 2], 'x8', [0, 1, 2], 1.5]
+ call assert_equal(['-0', 'A11', 2, 'xaaa', 4, 'foo', 'foo6', 'foo', [0, 1, 2], 'x8', [0, 1, 2], 1.5], uniq(copy(l)))
+ call assert_equal([1.5, [0, 1, 2], 'x8', [0, 1, 2], 'foo', 'foo6', 'foo', 4, 'xaaa', 2, 2, 'A11', '-0'], reverse(l))
+ call assert_equal([1.5, [0, 1, 2], 'x8', [0, 1, 2], 'foo', 'foo6', 'foo', 4, 'xaaa', 2, 2, 'A11', '-0'], reverse(reverse(l)))
+ call assert_equal(['-0', 'A11', 'foo', 'foo', 'foo6', 'x8', 'xaaa', 1.5, 2, 2, 4, [0, 1, 2], [0, 1, 2]], sort(l))
+ call assert_equal([[0, 1, 2], [0, 1, 2], 4, 2, 2, 1.5, 'xaaa', 'x8', 'foo6', 'foo', 'foo', 'A11', '-0'], reverse(sort(l)))
+ call assert_equal(['-0', 'A11', 'foo', 'foo', 'foo6', 'x8', 'xaaa', 1.5, 2, 2, 4, [0, 1, 2], [0, 1, 2]], sort(reverse(sort(l))))
+ call assert_equal(['-0', 'A11', 'foo', 'foo6', 'x8', 'xaaa', 1.5, 2, 4, [0, 1, 2]], uniq(sort(l)))
+
+ let l=[7, 9, 'one', 18, 12, 22, 'two', 10.0e-16, -1, 'three', 0xff, 0.22, 'four']
+ call assert_equal([-1, 'one', 'two', 'three', 'four', 1.0e-15, 0.22, 7, 9, 12, 18, 22, 255], sort(copy(l), 'n'))
+
+ let l=[7, 9, 18, 12, 22, 10.0e-16, -1, 0xff, 0, -0, 0.22, 'bar', 'BAR', 'Bar', 'Foo', 'FOO', 'foo', 'FOOBAR', {}, []]
+ call assert_equal(['bar', 'BAR', 'Bar', 'Foo', 'FOO', 'foo', 'FOOBAR', -1, 0, 0, 0.22, 1.0e-15, 12, 18, 22, 255, 7, 9, [], {}], sort(copy(l), 1))
+ call assert_equal(['bar', 'BAR', 'Bar', 'Foo', 'FOO', 'foo', 'FOOBAR', -1, 0, 0, 0.22, 1.0e-15, 12, 18, 22, 255, 7, 9, [], {}], sort(copy(l), 'i'))
+ call assert_equal(['BAR', 'Bar', 'FOO', 'FOOBAR', 'Foo', 'bar', 'foo', -1, 0, 0, 0.22, 1.0e-15, 12, 18, 22, 255, 7, 9, [], {}], sort(copy(l)))
+
+ call assert_fails('call reverse("")', 'E899:')
+endfunc
+
+" splitting a string to a List
+func Test_str_split()
+ call assert_equal(['aa', 'bb'], split(' aa bb '))
+ call assert_equal(['aa', 'bb'], split(' aa bb ', '\W\+', 0))
+ call assert_equal(['', 'aa', 'bb', ''], split(' aa bb ', '\W\+', 1))
+ call assert_equal(['', '', 'aa', '', 'bb', '', ''], split(' aa bb ', '\W', 1))
+ call assert_equal(['aa', '', 'bb'], split(':aa::bb:', ':', 0))
+ call assert_equal(['', 'aa', '', 'bb', ''], split(':aa::bb:', ':', 1))
+ call assert_equal(['aa', '', 'bb', 'cc', ''], split('aa,,bb, cc,', ',\s*', 1))
+ call assert_equal(['a', 'b', 'c'], split('abc', '\zs'))
+ call assert_equal(['', 'a', '', 'b', '', 'c', ''], split('abc', '\zs', 1))
+endfunc
+
+" compare recursively linked list and dict
+func Test_listdict_compare()
+ let l = [1, 2, 3, 4]
+ let d = {'1': 1, '2': l, '3': 3}
+ let l[1] = d
+ call assert_true(l == l)
+ call assert_true(d == d)
+ call assert_false(l != deepcopy(l))
+ call assert_false(d != deepcopy(d))
+endfunc
+
+ " compare complex recursively linked list and dict
+func Test_listdict_compare_complex()
+ let l = []
+ call add(l, l)
+ let dict4 = {"l": l}
+ call add(dict4.l, dict4)
+ let lcopy = deepcopy(l)
+ let dict4copy = deepcopy(dict4)
+ call assert_true(l == lcopy)
+ call assert_true(dict4 == dict4copy)
+endfunc
+
+func Test_listdict_extend()
+ " Pass the same List to extend()
+ let l = [1, 2, 3, 4, 5]
+ call extend(l, l)
+ call assert_equal([1, 2, 3, 4, 5, 1, 2, 3, 4, 5], l)
+
+ " Pass the same Dict to extend()
+ let d = { 'a': {'b': 'B'}}
+ call extend(d, d)
+ call assert_equal({'a': {'b': 'B'}}, d)
+
+ " Pass the same Dict to extend() with "error"
+ call assert_fails("call extend(d, d, 'error')", 'E737:')
+ call assert_equal({'a': {'b': 'B'}}, d)
+endfunc
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