diff options
Diffstat (limited to 'activesupport/test/core_ext/enumerable_test.rb')
| -rw-r--r-- | activesupport/test/core_ext/enumerable_test.rb | 126 |
1 files changed, 111 insertions, 15 deletions
diff --git a/activesupport/test/core_ext/enumerable_test.rb b/activesupport/test/core_ext/enumerable_test.rb index f09b7d8850..9072957e0e 100644 --- a/activesupport/test/core_ext/enumerable_test.rb +++ b/activesupport/test/core_ext/enumerable_test.rb @@ -1,6 +1,6 @@ -require 'abstract_unit' -require 'active_support/core_ext/array' -require 'active_support/core_ext/enumerable' +require "abstract_unit" +require "active_support/core_ext/array" +require "active_support/core_ext/enumerable" Payment = Struct.new(:price) ExpandedPayment = Struct.new(:dollars, :cents) @@ -10,26 +10,31 @@ class SummablePayment < Payment end class EnumerableTests < ActiveSupport::TestCase - class GenericEnumerable include Enumerable + def initialize(values = [1, 2, 3]) @values = values end def each - @values.each{|v| yield v} + @values.each { |v| yield v } end end + def assert_typed_equal(e, v, cls, msg=nil) + assert_kind_of(cls, v, msg) + assert_equal(e, v, msg) + end + def test_sums enum = GenericEnumerable.new([5, 15, 10]) assert_equal 30, enum.sum - assert_equal 60, enum.sum { |i| i * 2} + assert_equal 60, enum.sum { |i| i * 2 } enum = GenericEnumerable.new(%w(a b c)) - assert_equal 'abc', enum.sum - assert_equal 'aabbcc', enum.sum { |i| i * 2 } + assert_equal "abc", enum.sum + assert_equal "aabbcc", enum.sum { |i| i * 2 } payments = GenericEnumerable.new([ Payment.new(5), Payment.new(15), Payment.new(10) ]) assert_equal 30, payments.sum(&:price) @@ -38,6 +43,40 @@ class EnumerableTests < ActiveSupport::TestCase payments = GenericEnumerable.new([ SummablePayment.new(5), SummablePayment.new(15) ]) assert_equal SummablePayment.new(20), payments.sum assert_equal SummablePayment.new(20), payments.sum { |p| p } + + sum = GenericEnumerable.new([3, 5.quo(1)]).sum + assert_typed_equal(8, sum, Rational) + + sum = GenericEnumerable.new([3, 5.quo(1)]).sum(0.0) + assert_typed_equal(8.0, sum, Float) + + sum = GenericEnumerable.new([3, 5.quo(1), 7.0]).sum + assert_typed_equal(15.0, sum, Float) + + sum = GenericEnumerable.new([3, 5.quo(1), Complex(7)]).sum + assert_typed_equal(Complex(15), sum, Complex) + assert_typed_equal(15, sum.real, Rational) + assert_typed_equal(0, sum.imag, Integer) + + sum = GenericEnumerable.new([3.5, 5]).sum + assert_typed_equal(8.5, sum, Float) + + sum = GenericEnumerable.new([2, 8.5]).sum + assert_typed_equal(10.5, sum, Float) + + sum = GenericEnumerable.new([1.quo(2), 1]).sum + assert_typed_equal(3.quo(2), sum, Rational) + + sum = GenericEnumerable.new([1.quo(2), 1.quo(3)]).sum + assert_typed_equal(5.quo(6), sum, Rational) + + sum = GenericEnumerable.new([2.0, 3.0*Complex::I]).sum + assert_typed_equal(Complex(2.0, 3.0), sum, Complex) + assert_typed_equal(2.0, sum.real, Float) + assert_typed_equal(3.0, sum.imag, Float) + + sum = GenericEnumerable.new([1, 2]).sum(10) { |v| v * 2 } + assert_typed_equal(16, sum, Integer) end def test_nil_sums @@ -55,6 +94,7 @@ class EnumerableTests < ActiveSupport::TestCase assert_equal 0, GenericEnumerable.new([]).sum assert_equal 0, GenericEnumerable.new([]).sum { |i| i + 10 } assert_equal Payment.new(0), GenericEnumerable.new([]).sum(Payment.new(0)) + assert_typed_equal 0.0, GenericEnumerable.new([]).sum(0.0), Float end def test_range_sums @@ -62,12 +102,68 @@ class EnumerableTests < ActiveSupport::TestCase assert_equal 10, (1..4).sum assert_equal 10, (1..4.5).sum assert_equal 6, (1...4).sum - assert_equal 'abc', ('a'..'c').sum + assert_equal "abc", ("a".."c").sum assert_equal 50_000_005_000_000, (0..10_000_000).sum assert_equal 0, (10..0).sum assert_equal 5, (10..0).sum(5) assert_equal 10, (10..10).sum assert_equal 42, (10...10).sum(42) + assert_typed_equal 20.0, (1..4).sum(0.0) { |i| i * 2 }, Float + assert_typed_equal 10.0, (1..4).sum(0.0), Float + assert_typed_equal 20.0, (1..4).sum(10.0), Float + assert_typed_equal 5.0, (10..0).sum(5.0), Float + end + + def test_array_sums + enum = [5, 15, 10] + assert_equal 30, enum.sum + assert_equal 60, enum.sum { |i| i * 2 } + + enum = %w(a b c) + assert_equal "abc", enum.sum + assert_equal "aabbcc", enum.sum { |i| i * 2 } + + payments = [ Payment.new(5), Payment.new(15), Payment.new(10) ] + assert_equal 30, payments.sum(&:price) + assert_equal 60, payments.sum { |p| p.price * 2 } + + payments = [ SummablePayment.new(5), SummablePayment.new(15) ] + assert_equal SummablePayment.new(20), payments.sum + assert_equal SummablePayment.new(20), payments.sum { |p| p } + + sum = [3, 5.quo(1)].sum + assert_typed_equal(8, sum, Rational) + + sum = [3, 5.quo(1)].sum(0.0) + assert_typed_equal(8.0, sum, Float) + + sum = [3, 5.quo(1), 7.0].sum + assert_typed_equal(15.0, sum, Float) + + sum = [3, 5.quo(1), Complex(7)].sum + assert_typed_equal(Complex(15), sum, Complex) + assert_typed_equal(15, sum.real, Rational) + assert_typed_equal(0, sum.imag, Integer) + + sum = [3.5, 5].sum + assert_typed_equal(8.5, sum, Float) + + sum = [2, 8.5].sum + assert_typed_equal(10.5, sum, Float) + + sum = [1.quo(2), 1].sum + assert_typed_equal(3.quo(2), sum, Rational) + + sum = [1.quo(2), 1.quo(3)].sum + assert_typed_equal(5.quo(6), sum, Rational) + + sum = [2.0, 3.0*Complex::I].sum + assert_typed_equal(Complex(2.0, 3.0), sum, Complex) + assert_typed_equal(2.0, sum.real, Float) + assert_typed_equal(3.0, sum.imag, Float) + + sum = [1, 2].sum(10) { |v| v * 2 } + assert_typed_equal(16, sum, Integer) end def test_index_by @@ -88,17 +184,17 @@ class EnumerableTests < ActiveSupport::TestCase assert_equal false, GenericEnumerable.new([ 1 ] ).many? assert_equal true, GenericEnumerable.new([ 1, 2 ] ).many? - assert_equal false, GenericEnumerable.new([] ).many? {|x| x > 1 } - assert_equal false, GenericEnumerable.new([ 2 ] ).many? {|x| x > 1 } - assert_equal false, GenericEnumerable.new([ 1, 2 ] ).many? {|x| x > 1 } - assert_equal true, GenericEnumerable.new([ 1, 2, 2 ]).many? {|x| x > 1 } + assert_equal false, GenericEnumerable.new([] ).many? { |x| x > 1 } + assert_equal false, GenericEnumerable.new([ 2 ] ).many? { |x| x > 1 } + assert_equal false, GenericEnumerable.new([ 1, 2 ] ).many? { |x| x > 1 } + assert_equal true, GenericEnumerable.new([ 1, 2, 2 ]).many? { |x| x > 1 } end def test_many_iterates_only_on_what_is_needed infinity = 1.0/0.0 very_long_enum = 0..infinity assert_equal true, very_long_enum.many? - assert_equal true, very_long_enum.many?{|x| x > 100} + assert_equal true, very_long_enum.many? { |x| x > 100 } end def test_exclude? @@ -110,7 +206,7 @@ class EnumerableTests < ActiveSupport::TestCase assert_equal [1, 2, 4], GenericEnumerable.new((1..5).to_a).without(3, 5) assert_equal [1, 2, 4], (1..5).to_a.without(3, 5) assert_equal [1, 2, 4], (1..5).to_set.without(3, 5) - assert_equal({foo: 1, baz: 3}, {foo: 1, bar: 2, baz: 3}.without(:bar)) + assert_equal({ foo: 1, baz: 3 }, { foo: 1, bar: 2, baz: 3 }.without(:bar)) end def test_pluck |