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Band-aid around JuliaCollections/Iterators.jl#56
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| using Combinatorics | ||
| using Base.Test | ||
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| @test collect(combinations([])) == [] | ||
| @test collect(combinations(['a', 'b', 'c'])) == Any[['a'],['b'],['c'],['a','b'],['a','c'],['b','c'],['a','b','c']] | ||
| @test [combinations([])...] == [] | ||
| @test [combinations(['a', 'b', 'c'])...] == Any[['a'],['b'],['c'],['a','b'],['a','c'],['b','c'],['a','b','c']] | ||
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| @test collect(combinations("abc",3)) == Any[['a','b','c']] | ||
| @test collect(combinations("abc",2)) == Any[['a','b'],['a','c'],['b','c']] | ||
| @test collect(combinations("abc",1)) == Any[['a'],['b'],['c']] | ||
| @test collect(combinations("abc",0)) == Any[[]] | ||
| @test collect(combinations("abc",-1)) == [] | ||
| @test [combinations("abc",3)...] == Any[['a','b','c']] | ||
| @test [combinations("abc",2)...] == Any[['a','b'],['a','c'],['b','c']] | ||
| @test [combinations("abc",1)...] == Any[['a'],['b'],['c']] | ||
| @test [combinations("abc",0)...] == Any[[]] | ||
| @test [combinations("abc",-1)...] == [] | ||
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| @test collect(filter(x->(iseven(x[1])),combinations([1,2,3],2))) == Any[[2,3]] | ||
| @test filter(x->iseven(x[1]),[combinations([1,2,3],2)...]) == Any[[2,3]] | ||
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| # multiset_combinations | ||
| @test collect(multiset_combinations("aabc", 5)) == Any[] | ||
| @test collect(multiset_combinations("aabc", 2)) == Any[['a','a'],['a','b'],['a','c'],['b','c']] | ||
| @test collect(multiset_combinations("aabc", 1)) == Any[['a'],['b'],['c']] | ||
| @test collect(multiset_combinations("aabc", 0)) == Any[Char[]] | ||
| @test collect(multiset_combinations("aabc", -1)) == Any[] | ||
| @test collect(multiset_combinations("", 1)) == Any[] | ||
| @test collect(multiset_combinations("", 0)) == Any[Char[]] | ||
| @test collect(multiset_combinations("", -1)) == Any[] | ||
| @test [multiset_combinations("aabc", 5)...] == Any[] | ||
| @test [multiset_combinations("aabc", 2)...] == Any[['a','a'],['a','b'],['a','c'],['b','c']] | ||
| @test [multiset_combinations("aabc", 1)...] == Any[['a'],['b'],['c']] | ||
| @test [multiset_combinations("aabc", 0)...] == Any[Char[]] | ||
| @test [multiset_combinations("aabc", -1)...] == Any[] | ||
| @test [multiset_combinations("", 1)...] == Any[] | ||
| @test [multiset_combinations("", 0)...] == Any[Char[]] | ||
| @test [multiset_combinations("", -1)...] == Any[] | ||
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| # with_replacement_combinations | ||
| @test collect(with_replacement_combinations("abc", 2)) == Any[['a','a'],['a','b'],['a','c'], | ||
| @test [with_replacement_combinations("abc", 2)...] == Any[['a','a'],['a','b'],['a','c'], | ||
| ['b','b'],['b','c'],['c','c']] | ||
| @test collect(with_replacement_combinations("abc", 1)) == Any[['a'],['b'],['c']] | ||
| @test collect(with_replacement_combinations("abc", 0)) == Any[Char[]] | ||
| @test collect(with_replacement_combinations("abc", -1)) == Any[] | ||
| @test collect(with_replacement_combinations("", 1)) == Any[] | ||
| @test collect(with_replacement_combinations("", 0)) == Any[Char[]] | ||
| @test collect(with_replacement_combinations("", -1)) == Any[] | ||
| @test [with_replacement_combinations("abc", 1)...] == Any[['a'],['b'],['c']] | ||
| @test [with_replacement_combinations("abc", 0)...] == Any[Char[]] | ||
| @test [with_replacement_combinations("abc", -1)...] == Any[] | ||
| @test [with_replacement_combinations("", 1)...] == Any[] | ||
| @test [with_replacement_combinations("", 0)...] == Any[Char[]] | ||
| @test [with_replacement_combinations("", -1)...] == Any[] | ||
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| #cool-lex iterator | ||
| @test_throws DomainError collect(CoolLexCombinations(-1, 1)) | ||
| @test_throws DomainError collect(CoolLexCombinations(5, 0)) | ||
| @test collect(CoolLexCombinations(4,2)) == Vector[[1,2], [2,3], [1,3], [2,4], [3,4], [1,4]] | ||
| @test_throws DomainError [CoolLexCombinations(-1, 1)...] | ||
| @test_throws DomainError [CoolLexCombinations(5, 0)...] | ||
| @test [CoolLexCombinations(4,2)...] == Vector[[1,2], [2,3], [1,3], [2,4], [3,4], [1,4]] | ||
| @test isa(start(CoolLexCombinations(1000, 20)), Combinatorics.CoolLexIterState{BigInt}) |