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-rw-r--r--spec/ruby/core/enumerable/all_spec.rb128
1 files changed, 97 insertions, 31 deletions
diff --git a/spec/ruby/core/enumerable/all_spec.rb b/spec/ruby/core/enumerable/all_spec.rb
index bfde584260..cbdd63f86a 100644
--- a/spec/ruby/core/enumerable/all_spec.rb
+++ b/spec/ruby/core/enumerable/all_spec.rb
@@ -1,63 +1,67 @@
-require File.expand_path('../../../spec_helper', __FILE__)
-require File.expand_path('../fixtures/classes', __FILE__)
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
describe "Enumerable#all?" do
-
before :each do
@enum = EnumerableSpecs::Numerous.new
@empty = EnumerableSpecs::Empty.new()
- @enum1 = [0, 1, 2, -1]
- @enum2 = [nil, false, true]
+ @enum1 = EnumerableSpecs::Numerous.new(0, 1, 2, -1)
+ @enum2 = EnumerableSpecs::Numerous.new(nil, false, true)
end
it "always returns true on empty enumeration" do
- @empty.all?.should == true
+ @empty.should.all?
@empty.all? { nil }.should == true
- [].all?.should == true
+ [].should.all?
[].all? { false }.should == true
- {}.all?.should == true
+ {}.should.all?
{}.all? { nil }.should == true
end
+ it "raises an ArgumentError when more than 1 argument is provided" do
+ -> { @enum.all?(1, 2, 3) }.should.raise(ArgumentError)
+ -> { [].all?(1, 2, 3) }.should.raise(ArgumentError)
+ -> { {}.all?(1, 2, 3) }.should.raise(ArgumentError)
+ end
+
it "does not hide exceptions out of #each" do
- lambda {
+ -> {
EnumerableSpecs::ThrowingEach.new.all?
- }.should raise_error(RuntimeError)
+ }.should.raise(RuntimeError)
- lambda {
+ -> {
EnumerableSpecs::ThrowingEach.new.all? { false }
- }.should raise_error(RuntimeError)
+ }.should.raise(RuntimeError)
end
describe "with no block" do
it "returns true if no elements are false or nil" do
- @enum.all?.should == true
- @enum1.all?.should == true
- @enum2.all?.should == false
+ @enum.should.all?
+ @enum1.should.all?
+ @enum2.should_not.all?
- EnumerableSpecs::Numerous.new('a','b','c').all?.should == true
- EnumerableSpecs::Numerous.new(0, "x", true).all?.should == true
+ EnumerableSpecs::Numerous.new('a','b','c').should.all?
+ EnumerableSpecs::Numerous.new(0, "x", true).should.all?
end
it "returns false if there are false or nil elements" do
- EnumerableSpecs::Numerous.new(false).all?.should == false
- EnumerableSpecs::Numerous.new(false, false).all?.should == false
+ EnumerableSpecs::Numerous.new(false).should_not.all?
+ EnumerableSpecs::Numerous.new(false, false).should_not.all?
- EnumerableSpecs::Numerous.new(nil).all?.should == false
- EnumerableSpecs::Numerous.new(nil, nil).all?.should == false
+ EnumerableSpecs::Numerous.new(nil).should_not.all?
+ EnumerableSpecs::Numerous.new(nil, nil).should_not.all?
- EnumerableSpecs::Numerous.new(1, nil, 2).all?.should == false
- EnumerableSpecs::Numerous.new(0, "x", false, true).all?.should == false
- @enum2.all?.should == false
+ EnumerableSpecs::Numerous.new(1, nil, 2).should_not.all?
+ EnumerableSpecs::Numerous.new(0, "x", false, true).should_not.all?
+ @enum2.should_not.all?
end
it "gathers whole arrays as elements when each yields multiple" do
multi = EnumerableSpecs::YieldsMultiWithFalse.new
- multi.all?.should be_true
+ multi.all?.should == true
end
-
end
describe "with block" do
@@ -100,22 +104,84 @@ describe "Enumerable#all?" do
end
it "does not hide exceptions out of the block" do
- lambda {
+ -> {
@enum.all? { raise "from block" }
- }.should raise_error(RuntimeError)
+ }.should.raise(RuntimeError)
end
it "gathers initial args as elements when each yields multiple" do
multi = EnumerableSpecs::YieldsMulti.new
- multi.all? {|e| !(Array === e) }.should be_true
+ yielded = []
+ multi.all? { |e| yielded << e }.should == true
+ yielded.should == [1, 3, 6]
end
it "yields multiple arguments when each yields multiple" do
multi = EnumerableSpecs::YieldsMulti.new
yielded = []
- multi.all? {|e, i| yielded << [e, i] }
- yielded.should == [[1, 2], [3, 4], [6, 7]]
+ multi.all? { |*args| yielded << args }.should == true
+ yielded.should == [[1, 2], [3, 4, 5], [6, 7, 8, 9]]
+ end
+ end
+
+ describe 'when given a pattern argument' do
+ it "calls `===` on the pattern the return value" do
+ pattern = EnumerableSpecs::Pattern.new { |x| x >= 0 }
+ @enum1.all?(pattern).should == false
+ pattern.yielded.should == [[0], [1], [2], [-1]]
+ end
+
+ it "always returns true on empty enumeration" do
+ @empty.all?(Integer).should == true
+ [].all?(Integer).should == true
+ {}.all?(NilClass).should == true
+ end
+
+ it "does not hide exceptions out of #each" do
+ -> {
+ EnumerableSpecs::ThrowingEach.new.all?(Integer)
+ }.should.raise(RuntimeError)
+ end
+
+ it "returns true if the pattern never returns false or nil" do
+ pattern = EnumerableSpecs::Pattern.new { |x| 42 }
+ @enum.all?(pattern).should == true
+
+ [1, 42, 3].all?(pattern).should == true
+
+ pattern = EnumerableSpecs::Pattern.new { |x| Array === x }
+ {a: 1, b: 2}.all?(pattern).should == true
+ end
+
+ it "returns false if the pattern ever returns false or nil" do
+ pattern = EnumerableSpecs::Pattern.new { |x| x >= 0 }
+ @enum1.all?(pattern).should == false
+ pattern.yielded.should == [[0], [1], [2], [-1]]
+
+ [1, 2, 3, -1].all?(pattern).should == false
+
+ pattern = EnumerableSpecs::Pattern.new { |x| x[1] >= 0 }
+ {a: 1, b: -1}.all?(pattern).should == false
end
+ it "does not hide exceptions out of pattern#===" do
+ pattern = EnumerableSpecs::Pattern.new { raise "from pattern" }
+ -> {
+ @enum.all?(pattern)
+ }.should.raise(RuntimeError)
+ end
+
+ it "calls the pattern with gathered array when yielded with multiple arguments" do
+ multi = EnumerableSpecs::YieldsMulti.new
+ pattern = EnumerableSpecs::Pattern.new { true }
+ multi.all?(pattern).should == true
+ pattern.yielded.should == [[[1, 2]], [[3, 4, 5]], [[6, 7, 8, 9]]]
+ end
+
+ it "ignores the block if there is an argument" do
+ -> {
+ EnumerableSpecs::Numerous.new(1, 2, 3, 4, 5).all?(String) { true }.should == false
+ }.should complain(/given block not used/)
+ end
end
end