diff options
Diffstat (limited to 'spec/rubyspec/core/array/shared')
-rw-r--r-- | spec/rubyspec/core/array/shared/clone.rb | 42 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/collect.rb | 136 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/delete_if.rb | 27 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/enumeratorize.rb | 5 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/eql.rb | 92 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/index.rb | 37 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/inspect.rb | 104 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/join.rb | 161 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/keep_if.rb | 60 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/length.rb | 11 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/replace.rb | 60 | ||||
-rw-r--r-- | spec/rubyspec/core/array/shared/slice.rb | 459 |
12 files changed, 1194 insertions, 0 deletions
diff --git a/spec/rubyspec/core/array/shared/clone.rb b/spec/rubyspec/core/array/shared/clone.rb new file mode 100644 index 0000000000..6fc7ae31eb --- /dev/null +++ b/spec/rubyspec/core/array/shared/clone.rb @@ -0,0 +1,42 @@ +describe :array_clone, shared: true do + it "returns an Array or a subclass instance" do + [].send(@method).should be_an_instance_of(Array) + ArraySpecs::MyArray[1, 2].send(@method).should be_an_instance_of(ArraySpecs::MyArray) + end + + it "produces a shallow copy where the references are directly copied" do + a = [mock('1'), mock('2')] + b = a.send @method + b.first.object_id.should == a.first.object_id + b.last.object_id.should == a.last.object_id + end + + it "creates a new array containing all elements or the original" do + a = [1, 2, 3, 4] + b = a.send @method + b.should == a + b.__id__.should_not == a.__id__ + end + + it "copies taint status from the original" do + a = [1, 2, 3, 4] + b = [1, 2, 3, 4] + a.taint + aa = a.send @method + bb = b.send @method + + aa.tainted?.should == true + bb.tainted?.should == false + end + + it "copies untrusted status from the original" do + a = [1, 2, 3, 4] + b = [1, 2, 3, 4] + a.untrust + aa = a.send @method + bb = b.send @method + + aa.untrusted?.should == true + bb.untrusted?.should == false + end +end diff --git a/spec/rubyspec/core/array/shared/collect.rb b/spec/rubyspec/core/array/shared/collect.rb new file mode 100644 index 0000000000..f6bcfd8904 --- /dev/null +++ b/spec/rubyspec/core/array/shared/collect.rb @@ -0,0 +1,136 @@ +require File.expand_path('../../../enumerable/shared/enumeratorized', __FILE__) + +describe :array_collect, shared: true do + it "returns a copy of array with each element replaced by the value returned by block" do + a = ['a', 'b', 'c', 'd'] + b = a.send(@method) { |i| i + '!' } + b.should == ["a!", "b!", "c!", "d!"] + b.object_id.should_not == a.object_id + end + + it "does not return subclass instance" do + ArraySpecs::MyArray[1, 2, 3].send(@method) { |x| x + 1 }.should be_an_instance_of(Array) + end + + it "does not change self" do + a = ['a', 'b', 'c', 'd'] + a.send(@method) { |i| i + '!' } + a.should == ['a', 'b', 'c', 'd'] + end + + it "returns the evaluated value of block if it broke in the block" do + a = ['a', 'b', 'c', 'd'] + b = a.send(@method) {|i| + if i == 'c' + break 0 + else + i + '!' + end + } + b.should == 0 + end + + it "returns an Enumerator when no block given" do + a = [1, 2, 3] + a.send(@method).should be_an_instance_of(Enumerator) + end + + it "raises an ArgumentError when no block and with arguments" do + a = [1, 2, 3] + lambda { + a.send(@method, :foo) + }.should raise_error(ArgumentError) + end + + it "does not copy tainted status" do + a = [1, 2, 3] + a.taint + a.send(@method){|x| x}.tainted?.should be_false + end + + it "does not copy untrusted status" do + a = [1, 2, 3] + a.untrust + a.send(@method){|x| x}.untrusted?.should be_false + end + + before :all do + @object = [1, 2, 3, 4] + end + it_should_behave_like :enumeratorized_with_origin_size +end + +describe :array_collect_b, shared: true do + it "replaces each element with the value returned by block" do + a = [7, 9, 3, 5] + a.send(@method) { |i| i - 1 }.should equal(a) + a.should == [6, 8, 2, 4] + end + + it "returns self" do + a = [1, 2, 3, 4, 5] + b = a.send(@method) {|i| i+1 } + a.object_id.should == b.object_id + end + + it "returns the evaluated value of block but its contents is partially modified, if it broke in the block" do + a = ['a', 'b', 'c', 'd'] + b = a.send(@method) {|i| + if i == 'c' + break 0 + else + i + '!' + end + } + b.should == 0 + a.should == ['a!', 'b!', 'c', 'd'] + end + + it "returns an Enumerator when no block given, and the enumerator can modify the original array" do + a = [1, 2, 3] + enum = a.send(@method) + enum.should be_an_instance_of(Enumerator) + enum.each{|i| "#{i}!" } + a.should == ["1!", "2!", "3!"] + end + + it "keeps tainted status" do + a = [1, 2, 3] + a.taint + a.tainted?.should be_true + a.send(@method){|x| x} + a.tainted?.should be_true + end + + it "keeps untrusted status" do + a = [1, 2, 3] + a.untrust + a.send(@method){|x| x} + a.untrusted?.should be_true + end + + describe "when frozen" do + it "raises a RuntimeError" do + lambda { ArraySpecs.frozen_array.send(@method) {} }.should raise_error(RuntimeError) + end + + it "raises a RuntimeError when empty" do + lambda { ArraySpecs.empty_frozen_array.send(@method) {} }.should raise_error(RuntimeError) + end + + it "raises a RuntimeError when calling #each on the returned Enumerator" do + enumerator = ArraySpecs.frozen_array.send(@method) + lambda { enumerator.each {|x| x } }.should raise_error(RuntimeError) + end + + it "raises a RuntimeError when calling #each on the returned Enumerator when empty" do + enumerator = ArraySpecs.empty_frozen_array.send(@method) + lambda { enumerator.each {|x| x } }.should raise_error(RuntimeError) + end + end + + before :all do + @object = [1, 2, 3, 4] + end + it_should_behave_like :enumeratorized_with_origin_size +end diff --git a/spec/rubyspec/core/array/shared/delete_if.rb b/spec/rubyspec/core/array/shared/delete_if.rb new file mode 100644 index 0000000000..a9fb57e0d9 --- /dev/null +++ b/spec/rubyspec/core/array/shared/delete_if.rb @@ -0,0 +1,27 @@ +describe :delete_if, shared: true do + before :each do + @object = [1,2,3] + end + + ruby_version_is "2.3" do + it "updates the receiver after all blocks" do + @object.send(@method) do |e| + @object.length.should == 3 + true + end + @object.length.should == 0 + end + end + + ruby_version_is ""..."2.3" do + it "updates the receiver after each true block" do + count = 0 + @object.send(@method) do |e| + @object.length.should == (3 - count) + count += 1 + true + end + @object.length.should == 0 + end + end +end diff --git a/spec/rubyspec/core/array/shared/enumeratorize.rb b/spec/rubyspec/core/array/shared/enumeratorize.rb new file mode 100644 index 0000000000..a19a5d3b9b --- /dev/null +++ b/spec/rubyspec/core/array/shared/enumeratorize.rb @@ -0,0 +1,5 @@ +describe :enumeratorize, shared: true do + it "returns an Enumerator if no block given" do + [1,2].send(@method).should be_an_instance_of(Enumerator) + end +end diff --git a/spec/rubyspec/core/array/shared/eql.rb b/spec/rubyspec/core/array/shared/eql.rb new file mode 100644 index 0000000000..b5d9128434 --- /dev/null +++ b/spec/rubyspec/core/array/shared/eql.rb @@ -0,0 +1,92 @@ +describe :array_eql, shared: true do + it "returns true if other is the same array" do + a = [1] + a.send(@method, a).should be_true + end + + it "returns true if corresponding elements are #eql?" do + [].send(@method, []).should be_true + [1, 2, 3, 4].send(@method, [1, 2, 3, 4]).should be_true + end + + it "returns false if other is shorter than self" do + [1, 2, 3, 4].send(@method, [1, 2, 3]).should be_false + end + + it "returns false if other is longer than self" do + [1, 2, 3, 4].send(@method, [1, 2, 3, 4, 5]).should be_false + end + + it "returns false immediately when sizes of the arrays differ" do + obj = mock('1') + obj.should_not_receive(@method) + + [] .send(@method, [obj] ).should be_false + [obj] .send(@method, [] ).should be_false + end + + it "handles well recursive arrays" do + a = ArraySpecs.empty_recursive_array + a .send(@method, [a] ).should be_true + a .send(@method, [[a]] ).should be_true + [a] .send(@method, a ).should be_true + [[a]] .send(@method, a ).should be_true + # These may be surprising, but no difference can be + # found between these arrays, so they are ==. + # There is no "path" that will lead to a difference + # (contrary to other examples below) + + a2 = ArraySpecs.empty_recursive_array + a .send(@method, a2 ).should be_true + a .send(@method, [a2] ).should be_true + a .send(@method, [[a2]] ).should be_true + [a] .send(@method, a2 ).should be_true + [[a]] .send(@method, a2 ).should be_true + + back = [] + forth = [back]; back << forth; + back .send(@method, a ).should be_true + + x = []; x << x << x + x .send(@method, a ).should be_false # since x.size != a.size + x .send(@method, [a, a] ).should be_false # since x[0].size != [a, a][0].size + x .send(@method, [x, a] ).should be_false # since x[1].size != [x, a][1].size + [x, a] .send(@method, [a, x] ).should be_false # etc... + x .send(@method, [x, x] ).should be_true + x .send(@method, [[x, x], [x, x]] ).should be_true + + tree = []; + branch = []; branch << tree << tree; tree << branch + tree2 = []; + branch2 = []; branch2 << tree2 << tree2; tree2 << branch2 + forest = [tree, branch, :bird, a]; forest << forest + forest2 = [tree2, branch2, :bird, a2]; forest2 << forest2 + + forest .send(@method, forest2 ).should be_true + forest .send(@method, [tree2, branch, :bird, a, forest2]).should be_true + + diffforest = [branch2, tree2, :bird, a2]; diffforest << forest2 + forest .send(@method, diffforest ).should be_false # since forest[0].size == 1 != 3 == diffforest[0] + forest .send(@method, [nil] ).should be_false + forest .send(@method, [forest] ).should be_false + end + + it "does not call #to_ary on its argument" do + obj = mock('to_ary') + obj.should_not_receive(:to_ary) + + [1, 2, 3].send(@method, obj).should be_false + end + + it "does not call #to_ary on Array subclasses" do + ary = ArraySpecs::ToAryArray[5, 6, 7] + ary.should_not_receive(:to_ary) + [5, 6, 7].send(@method, ary).should be_true + end + + it "ignores array class differences" do + ArraySpecs::MyArray[1, 2, 3].send(@method, [1, 2, 3]).should be_true + ArraySpecs::MyArray[1, 2, 3].send(@method, ArraySpecs::MyArray[1, 2, 3]).should be_true + [1, 2, 3].send(@method, ArraySpecs::MyArray[1, 2, 3]).should be_true + end +end diff --git a/spec/rubyspec/core/array/shared/index.rb b/spec/rubyspec/core/array/shared/index.rb new file mode 100644 index 0000000000..a9896554f2 --- /dev/null +++ b/spec/rubyspec/core/array/shared/index.rb @@ -0,0 +1,37 @@ +describe :array_index, shared: true do + it "returns the index of the first element == to object" do + x = mock('3') + def x.==(obj) 3 == obj; end + + [2, x, 3, 1, 3, 1].send(@method, 3).should == 1 + [2, 3.0, 3, x, 1, 3, 1].send(@method, x).should == 1 + end + + it "returns 0 if first element == to object" do + [2, 1, 3, 2, 5].send(@method, 2).should == 0 + end + + it "returns size-1 if only last element == to object" do + [2, 1, 3, 1, 5].send(@method, 5).should == 4 + end + + it "returns nil if no element == to object" do + [2, 1, 1, 1, 1].send(@method, 3).should == nil + end + + it "accepts a block instead of an argument" do + [4, 2, 1, 5, 1, 3].send(@method) {|x| x < 2}.should == 2 + end + + it "ignores the block if there is an argument" do + -> { + [4, 2, 1, 5, 1, 3].send(@method, 5) {|x| x < 2}.should == 3 + }.should complain(/given block not used/) + end + + describe "given no argument and no block" do + it "produces an Enumerator" do + [].send(@method).should be_an_instance_of(Enumerator) + end + end +end diff --git a/spec/rubyspec/core/array/shared/inspect.rb b/spec/rubyspec/core/array/shared/inspect.rb new file mode 100644 index 0000000000..823dd40e7e --- /dev/null +++ b/spec/rubyspec/core/array/shared/inspect.rb @@ -0,0 +1,104 @@ +require File.expand_path('../../fixtures/encoded_strings', __FILE__) + +describe :array_inspect, shared: true do + it "returns a string" do + [1, 2, 3].send(@method).should be_an_instance_of(String) + end + + it "returns '[]' for an empty Array" do + [].send(@method).should == "[]" + end + + it "calls inspect on its elements and joins the results with commas" do + items = Array.new(3) do |i| + obj = mock(i.to_s) + obj.should_receive(:inspect).and_return(i.to_s) + obj + end + items.send(@method).should == "[0, 1, 2]" + end + + it "represents a recursive element with '[...]'" do + ArraySpecs.recursive_array.send(@method).should == "[1, \"two\", 3.0, [...], [...], [...], [...], [...]]" + ArraySpecs.head_recursive_array.send(@method).should == "[[...], [...], [...], [...], [...], 1, \"two\", 3.0]" + ArraySpecs.empty_recursive_array.send(@method).should == "[[...]]" + end + + it "taints the result if the Array is non-empty and tainted" do + [1, 2].taint.send(@method).tainted?.should be_true + end + + it "does not taint the result if the Array is tainted but empty" do + [].taint.send(@method).tainted?.should be_false + end + + it "taints the result if an element is tainted" do + ["str".taint].send(@method).tainted?.should be_true + end + + it "untrusts the result if the Array is untrusted" do + [1, 2].untrust.send(@method).untrusted?.should be_true + end + + it "does not untrust the result if the Array is untrusted but empty" do + [].untrust.send(@method).untrusted?.should be_false + end + + it "untrusts the result if an element is untrusted" do + ["str".untrust].send(@method).untrusted?.should be_true + end + + describe "with encoding" do + before :each do + @default_external_encoding = Encoding.default_external + end + + after :each do + Encoding.default_external = @default_external_encoding + end + + it "returns a US-ASCII string for an empty Array" do + [].send(@method).encoding.should == Encoding::US_ASCII + end + + it "use the default external encoding if it is ascii compatible" do + Encoding.default_external = Encoding.find('UTF-8') + + utf8 = "utf8".encode("UTF-8") + jp = "jp".encode("EUC-JP") + array = [jp, utf8] + + array.send(@method).encoding.name.should == "UTF-8" + end + + it "use US-ASCII encoding if the default external encoding is not ascii compatible" do + Encoding.default_external = Encoding.find('UTF-32') + + utf8 = "utf8".encode("UTF-8") + jp = "jp".encode("EUC-JP") + array = [jp, utf8] + + array.send(@method).encoding.name.should == "US-ASCII" + end + + ruby_version_is ''...'2.3' do + it "raises if inspected result is not default external encoding" do + utf_16be = mock("utf_16be") + utf_16be.should_receive(:inspect).and_return(%<"utf_16be \u3042">.encode!(Encoding::UTF_16BE)) + + lambda { + [utf_16be].send(@method) + }.should raise_error(Encoding::CompatibilityError) + end + end + + ruby_version_is '2.3' do + it "does not raise if inspected result is not default external encoding" do + utf_16be = mock("utf_16be") + utf_16be.should_receive(:inspect).and_return(%<"utf_16be \u3042">.encode!(Encoding::UTF_16BE)) + + [utf_16be].send(@method).should == '["utf_16be \u3042"]' + end + end + end +end diff --git a/spec/rubyspec/core/array/shared/join.rb b/spec/rubyspec/core/array/shared/join.rb new file mode 100644 index 0000000000..fa66588b47 --- /dev/null +++ b/spec/rubyspec/core/array/shared/join.rb @@ -0,0 +1,161 @@ +require File.expand_path('../../fixtures/classes', __FILE__) +require File.expand_path('../../fixtures/encoded_strings', __FILE__) + +describe :array_join_with_default_separator, shared: true do + before :each do + @separator = $, + end + + after :each do + $, = @separator + end + + it "returns an empty string if the Array is empty" do + [].send(@method).should == '' + end + + it "returns a US-ASCII string for an empty Array" do + [].send(@method).encoding.should == Encoding::US_ASCII + end + + it "returns a string formed by concatenating each String element separated by $," do + $, = " | " + ["1", "2", "3"].send(@method).should == "1 | 2 | 3" + end + + it "attempts coercion via #to_str first" do + obj = mock('foo') + obj.should_receive(:to_str).any_number_of_times.and_return("foo") + [obj].send(@method).should == "foo" + end + + it "attempts coercion via #to_ary second" do + obj = mock('foo') + obj.should_receive(:to_str).any_number_of_times.and_return(nil) + obj.should_receive(:to_ary).any_number_of_times.and_return(["foo"]) + [obj].send(@method).should == "foo" + end + + it "attempts coercion via #to_s third" do + obj = mock('foo') + obj.should_receive(:to_str).any_number_of_times.and_return(nil) + obj.should_receive(:to_ary).any_number_of_times.and_return(nil) + obj.should_receive(:to_s).any_number_of_times.and_return("foo") + [obj].send(@method).should == "foo" + end + + it "raises a NoMethodError if an element does not respond to #to_str, #to_ary, or #to_s" do + obj = mock('o') + class << obj; undef :to_s; end + lambda { [1, obj].send(@method) }.should raise_error(NoMethodError) + end + + it "raises an ArgumentError when the Array is recursive" do + lambda { ArraySpecs.recursive_array.send(@method) }.should raise_error(ArgumentError) + lambda { ArraySpecs.head_recursive_array.send(@method) }.should raise_error(ArgumentError) + lambda { ArraySpecs.empty_recursive_array.send(@method) }.should raise_error(ArgumentError) + end + + it "taints the result if the Array is tainted and non-empty" do + [1, 2].taint.send(@method).tainted?.should be_true + end + + it "does not taint the result if the Array is tainted but empty" do + [].taint.send(@method).tainted?.should be_false + end + + it "taints the result if the result of coercing an element is tainted" do + s = mock("taint") + s.should_receive(:to_s).and_return("str".taint) + [s].send(@method).tainted?.should be_true + end + + it "untrusts the result if the Array is untrusted and non-empty" do + [1, 2].untrust.send(@method).untrusted?.should be_true + end + + it "does not untrust the result if the Array is untrusted but empty" do + [].untrust.send(@method).untrusted?.should be_false + end + + it "untrusts the result if the result of coercing an element is untrusted" do + s = mock("untrust") + s.should_receive(:to_s).and_return("str".untrust) + [s].send(@method).untrusted?.should be_true + end + + it "uses the first encoding when other strings are compatible" do + ary1 = ArraySpecs.array_with_7bit_utf8_and_usascii_strings + ary2 = ArraySpecs.array_with_usascii_and_7bit_utf8_strings + ary3 = ArraySpecs.array_with_utf8_and_7bit_ascii8bit_strings + ary4 = ArraySpecs.array_with_usascii_and_7bit_ascii8bit_strings + + ary1.send(@method).encoding.should == Encoding::UTF_8 + ary2.send(@method).encoding.should == Encoding::US_ASCII + ary3.send(@method).encoding.should == Encoding::UTF_8 + ary4.send(@method).encoding.should == Encoding::US_ASCII + end + + it "uses the widest common encoding when other strings are incompatible" do + ary1 = ArraySpecs.array_with_utf8_and_usascii_strings + ary2 = ArraySpecs.array_with_usascii_and_utf8_strings + + ary1.send(@method).encoding.should == Encoding::UTF_8 + ary2.send(@method).encoding.should == Encoding::UTF_8 + end + + it "fails for arrays with incompatibly-encoded strings" do + ary_utf8_bad_ascii8bit = ArraySpecs.array_with_utf8_and_ascii8bit_strings + + lambda { ary_utf8_bad_ascii8bit.send(@method) }.should raise_error(EncodingError) + end +end + +describe :array_join_with_string_separator, shared: true do + it "returns a string formed by concatenating each element.to_str separated by separator" do + obj = mock('foo') + obj.should_receive(:to_str).and_return("foo") + [1, 2, 3, 4, obj].send(@method, ' | ').should == '1 | 2 | 3 | 4 | foo' + end + + it "uses the same separator with nested arrays" do + [1, [2, [3, 4], 5], 6].send(@method, ":").should == "1:2:3:4:5:6" + [1, [2, ArraySpecs::MyArray[3, 4], 5], 6].send(@method, ":").should == "1:2:3:4:5:6" + end + + describe "with a tainted separator" do + before :each do + @sep = ":".taint + end + + it "does not taint the result if the array is empty" do + [].send(@method, @sep).tainted?.should be_false + end + + it "does not taint the result if the array has only one element" do + [1].send(@method, @sep).tainted?.should be_false + end + + it "taints the result if the array has two or more elements" do + [1, 2].send(@method, @sep).tainted?.should be_true + end + end + + describe "with an untrusted separator" do + before :each do + @sep = ":".untrust + end + + it "does not untrust the result if the array is empty" do + [].send(@method, @sep).untrusted?.should be_false + end + + it "does not untrust the result if the array has only one element" do + [1].send(@method, @sep).untrusted?.should be_false + end + + it "untrusts the result if the array has two or more elements" do + [1, 2].send(@method, @sep).untrusted?.should be_true + end + end +end diff --git a/spec/rubyspec/core/array/shared/keep_if.rb b/spec/rubyspec/core/array/shared/keep_if.rb new file mode 100644 index 0000000000..581ba31d1b --- /dev/null +++ b/spec/rubyspec/core/array/shared/keep_if.rb @@ -0,0 +1,60 @@ +require File.expand_path('../../../enumerable/shared/enumeratorized', __FILE__) + +describe :keep_if, shared: true do + it "deletes elements for which the block returns a false value" do + array = [1, 2, 3, 4, 5] + array.send(@method) {|item| item > 3 }.should equal(array) + array.should == [4, 5] + end + + it "returns an enumerator if no block is given" do + [1, 2, 3].send(@method).should be_an_instance_of(Enumerator) + end + + it "updates the receiver after all blocks" do + a = [1, 2, 3] + a.send(@method) do |e| + a.length.should == 3 + false + end + a.length.should == 0 + end + + before :all do + @object = [1,2,3] + end + it_should_behave_like :enumeratorized_with_origin_size + + describe "on frozen objects" do + before :each do + @origin = [true, false] + @frozen = @origin.dup.freeze + end + + it "returns an Enumerator if no block is given" do + @frozen.send(@method).should be_an_instance_of(Enumerator) + end + + describe "with truthy block" do + it "keeps elements after any exception" do + lambda { @frozen.send(@method) { true } }.should raise_error(Exception) + @frozen.should == @origin + end + + it "raises a RuntimeError" do + lambda { @frozen.send(@method) { true } }.should raise_error(RuntimeError) + end + end + + describe "with falsy block" do + it "keeps elements after any exception" do + lambda { @frozen.send(@method) { false } }.should raise_error(Exception) + @frozen.should == @origin + end + + it "raises a RuntimeError" do + lambda { @frozen.send(@method) { false } }.should raise_error(RuntimeError) + end + end + end +end diff --git a/spec/rubyspec/core/array/shared/length.rb b/spec/rubyspec/core/array/shared/length.rb new file mode 100644 index 0000000000..f84966d0ba --- /dev/null +++ b/spec/rubyspec/core/array/shared/length.rb @@ -0,0 +1,11 @@ +describe :array_length, shared: true do + it "returns the number of elements" do + [].send(@method).should == 0 + [1, 2, 3].send(@method).should == 3 + end + + it "properly handles recursive arrays" do + ArraySpecs.empty_recursive_array.send(@method).should == 1 + ArraySpecs.recursive_array.send(@method).should == 8 + end +end diff --git a/spec/rubyspec/core/array/shared/replace.rb b/spec/rubyspec/core/array/shared/replace.rb new file mode 100644 index 0000000000..8442d9a841 --- /dev/null +++ b/spec/rubyspec/core/array/shared/replace.rb @@ -0,0 +1,60 @@ +describe :array_replace, shared: true do + it "replaces the elements with elements from other array" do + a = [1, 2, 3, 4, 5] + b = ['a', 'b', 'c'] + a.send(@method, b).should equal(a) + a.should == b + a.should_not equal(b) + + a.send(@method, [4] * 10) + a.should == [4] * 10 + + a.send(@method, []) + a.should == [] + end + + it "properly handles recursive arrays" do + orig = [1, 2, 3] + empty = ArraySpecs.empty_recursive_array + orig.send(@method, empty) + orig.should == empty + + array = ArraySpecs.recursive_array + orig.send(@method, array) + orig.should == array + end + + it "returns self" do + ary = [1, 2, 3] + other = [:a, :b, :c] + ary.send(@method, other).should equal(ary) + end + + it "does not make self dependent to the original array" do + ary = [1, 2, 3] + other = [:a, :b, :c] + ary.send(@method, other) + ary.should == [:a, :b, :c] + ary << :d + ary.should == [:a, :b, :c, :d] + other.should == [:a, :b, :c] + end + + it "tries to convert the passed argument to an Array using #to_ary" do + obj = mock('to_ary') + obj.stub!(:to_ary).and_return([1, 2, 3]) + [].send(@method, obj).should == [1, 2, 3] + end + + it "does not call #to_ary on Array subclasses" do + obj = ArraySpecs::ToAryArray[5, 6, 7] + obj.should_not_receive(:to_ary) + [].send(@method, ArraySpecs::ToAryArray[5, 6, 7]).should == [5, 6, 7] + end + + it "raises a RuntimeError on a frozen array" do + lambda { + ArraySpecs.frozen_array.send(@method, ArraySpecs.frozen_array) + }.should raise_error(RuntimeError) + end +end diff --git a/spec/rubyspec/core/array/shared/slice.rb b/spec/rubyspec/core/array/shared/slice.rb new file mode 100644 index 0000000000..b3f4ccb9a6 --- /dev/null +++ b/spec/rubyspec/core/array/shared/slice.rb @@ -0,0 +1,459 @@ +describe :array_slice, shared: true do + it "returns the element at index with [index]" do + [ "a", "b", "c", "d", "e" ].send(@method, 1).should == "b" + + a = [1, 2, 3, 4] + + a.send(@method, 0).should == 1 + a.send(@method, 1).should == 2 + a.send(@method, 2).should == 3 + a.send(@method, 3).should == 4 + a.send(@method, 4).should == nil + a.send(@method, 10).should == nil + + a.should == [1, 2, 3, 4] + end + + it "returns the element at index from the end of the array with [-index]" do + [ "a", "b", "c", "d", "e" ].send(@method, -2).should == "d" + + a = [1, 2, 3, 4] + + a.send(@method, -1).should == 4 + a.send(@method, -2).should == 3 + a.send(@method, -3).should == 2 + a.send(@method, -4).should == 1 + a.send(@method, -5).should == nil + a.send(@method, -10).should == nil + + a.should == [1, 2, 3, 4] + end + + it "returns count elements starting from index with [index, count]" do + [ "a", "b", "c", "d", "e" ].send(@method, 2, 3).should == ["c", "d", "e"] + + a = [1, 2, 3, 4] + + a.send(@method, 0, 0).should == [] + a.send(@method, 0, 1).should == [1] + a.send(@method, 0, 2).should == [1, 2] + a.send(@method, 0, 4).should == [1, 2, 3, 4] + a.send(@method, 0, 6).should == [1, 2, 3, 4] + a.send(@method, 0, -1).should == nil + a.send(@method, 0, -2).should == nil + a.send(@method, 0, -4).should == nil + + a.send(@method, 2, 0).should == [] + a.send(@method, 2, 1).should == [3] + a.send(@method, 2, 2).should == [3, 4] + a.send(@method, 2, 4).should == [3, 4] + a.send(@method, 2, -1).should == nil + + a.send(@method, 4, 0).should == [] + a.send(@method, 4, 2).should == [] + a.send(@method, 4, -1).should == nil + + a.send(@method, 5, 0).should == nil + a.send(@method, 5, 2).should == nil + a.send(@method, 5, -1).should == nil + + a.send(@method, 6, 0).should == nil + a.send(@method, 6, 2).should == nil + a.send(@method, 6, -1).should == nil + + a.should == [1, 2, 3, 4] + end + + it "returns count elements starting at index from the end of array with [-index, count]" do + [ "a", "b", "c", "d", "e" ].send(@method, -2, 2).should == ["d", "e"] + + a = [1, 2, 3, 4] + + a.send(@method, -1, 0).should == [] + a.send(@method, -1, 1).should == [4] + a.send(@method, -1, 2).should == [4] + a.send(@method, -1, -1).should == nil + + a.send(@method, -2, 0).should == [] + a.send(@method, -2, 1).should == [3] + a.send(@method, -2, 2).should == [3, 4] + a.send(@method, -2, 4).should == [3, 4] + a.send(@method, -2, -1).should == nil + + a.send(@method, -4, 0).should == [] + a.send(@method, -4, 1).should == [1] + a.send(@method, -4, 2).should == [1, 2] + a.send(@method, -4, 4).should == [1, 2, 3, 4] + a.send(@method, -4, 6).should == [1, 2, 3, 4] + a.send(@method, -4, -1).should == nil + + a.send(@method, -5, 0).should == nil + a.send(@method, -5, 1).should == nil + a.send(@method, -5, 10).should == nil + a.send(@method, -5, -1).should == nil + + a.should == [1, 2, 3, 4] + end + + it "returns the first count elements with [0, count]" do + [ "a", "b", "c", "d", "e" ].send(@method, 0, 3).should == ["a", "b", "c"] + end + + it "returns the subarray which is independent to self with [index,count]" do + a = [1, 2, 3] + sub = a.send(@method, 1,2) + sub.replace([:a, :b]) + a.should == [1, 2, 3] + end + + it "tries to convert the passed argument to an Integer using #to_int" do + obj = mock('to_int') + obj.stub!(:to_int).and_return(2) + + a = [1, 2, 3, 4] + a.send(@method, obj).should == 3 + a.send(@method, obj, 1).should == [3] + a.send(@method, obj, obj).should == [3, 4] + a.send(@method, 0, obj).should == [1, 2] + end + + it "returns the elements specified by Range indexes with [m..n]" do + [ "a", "b", "c", "d", "e" ].send(@method, 1..3).should == ["b", "c", "d"] + [ "a", "b", "c", "d", "e" ].send(@method, 4..-1).should == ['e'] + [ "a", "b", "c", "d", "e" ].send(@method, 3..3).should == ['d'] + [ "a", "b", "c", "d", "e" ].send(@method, 3..-2).should == ['d'] + ['a'].send(@method, 0..-1).should == ['a'] + + a = [1, 2, 3, 4] + + a.send(@method, 0..-10).should == [] + a.send(@method, 0..0).should == [1] + a.send(@method, 0..1).should == [1, 2] + a.send(@method, 0..2).should == [1, 2, 3] + a.send(@method, 0..3).should == [1, 2, 3, 4] + a.send(@method, 0..4).should == [1, 2, 3, 4] + a.send(@method, 0..10).should == [1, 2, 3, 4] + + a.send(@method, 2..-10).should == [] + a.send(@method, 2..0).should == [] + a.send(@method, 2..2).should == [3] + a.send(@method, 2..3).should == [3, 4] + a.send(@method, 2..4).should == [3, 4] + + a.send(@method, 3..0).should == [] + a.send(@method, 3..3).should == [4] + a.send(@method, 3..4).should == [4] + + a.send(@method, 4..0).should == [] + a.send(@method, 4..4).should == [] + a.send(@method, 4..5).should == [] + + a.send(@method, 5..0).should == nil + a.send(@method, 5..5).should == nil + a.send(@method, 5..6).should == nil + + a.should == [1, 2, 3, 4] + end + + it "returns elements specified by Range indexes except the element at index n with [m...n]" do + [ "a", "b", "c", "d", "e" ].send(@method, 1...3).should == ["b", "c"] + + a = [1, 2, 3, 4] + + a.send(@method, 0...-10).should == [] + a.send(@method, 0...0).should == [] + a.send(@method, 0...1).should == [1] + a.send(@method, 0...2).should == [1, 2] + a.send(@method, 0...3).should == [1, 2, 3] + a.send(@method, 0...4).should == [1, 2, 3, 4] + a.send(@method, 0...10).should == [1, 2, 3, 4] + + a.send(@method, 2...-10).should == [] + a.send(@method, 2...0).should == [] + a.send(@method, 2...2).should == [] + a.send(@method, 2...3).should == [3] + a.send(@method, 2...4).should == [3, 4] + + a.send(@method, 3...0).should == [] + a.send(@method, 3...3).should == [] + a.send(@method, 3...4).should == [4] + + a.send(@method, 4...0).should == [] + a.send(@method, 4...4).should == [] + a.send(@method, 4...5).should == [] + + a.send(@method, 5...0).should == nil + a.send(@method, 5...5).should == nil + a.send(@method, 5...6).should == nil + + a.should == [1, 2, 3, 4] + end + + it "returns elements that exist if range start is in the array but range end is not with [m..n]" do + [ "a", "b", "c", "d", "e" ].send(@method, 4..7).should == ["e"] + end + + it "accepts Range instances having a negative m and both signs for n with [m..n] and [m...n]" do + a = [1, 2, 3, 4] + + a.send(@method, -1..-1).should == [4] + a.send(@method, -1...-1).should == [] + a.send(@method, -1..3).should == [4] + a.send(@method, -1...3).should == [] + a.send(@method, -1..4).should == [4] + a.send(@method, -1...4).should == [4] + a.send(@method, -1..10).should == [4] + a.send(@method, -1...10).should == [4] + a.send(@method, -1..0).should == [] + a.send(@method, -1..-4).should == [] + a.send(@method, -1...-4).should == [] + a.send(@method, -1..-6).should == [] + a.send(@method, -1...-6).should == [] + + a.send(@method, -2..-2).should == [3] + a.send(@method, -2...-2).should == [] + a.send(@method, -2..-1).should == [3, 4] + a.send(@method, -2...-1).should == [3] + a.send(@method, -2..10).should == [3, 4] + a.send(@method, -2...10).should == [3, 4] + + a.send(@method, -4..-4).should == [1] + a.send(@method, -4..-2).should == [1, 2, 3] + a.send(@method, -4...-2).should == [1, 2] + a.send(@method, -4..-1).should == [1, 2, 3, 4] + a.send(@method, -4...-1).should == [1, 2, 3] + a.send(@method, -4..3).should == [1, 2, 3, 4] + a.send(@method, -4...3).should == [1, 2, 3] + a.send(@method, -4..4).should == [1, 2, 3, 4] + a.send(@method, -4...4).should == [1, 2, 3, 4] + a.send(@method, -4...4).should == [1, 2, 3, 4] + a.send(@method, -4..0).should == [1] + a.send(@method, -4...0).should == [] + a.send(@method, -4..1).should == [1, 2] + a.send(@method, -4...1).should == [1] + + a.send(@method, -5..-5).should == nil + a.send(@method, -5...-5).should == nil + a.send(@method, -5..-4).should == nil + a.send(@method, -5..-1).should == nil + a.send(@method, -5..10).should == nil + + a.should == [1, 2, 3, 4] + end + + it "returns the subarray which is independent to self with [m..n]" do + a = [1, 2, 3] + sub = a.send(@method, 1..2) + sub.replace([:a, :b]) + a.should == [1, 2, 3] + end + + it "tries to convert Range elements to Integers using #to_int with [m..n] and [m...n]" do + from = mock('from') + to = mock('to') + + # So we can construct a range out of them... + def from.<=>(o) 0 end + def to.<=>(o) 0 end + + def from.to_int() 1 end + def to.to_int() -2 end + + a = [1, 2, 3, 4] + + a.send(@method, from..to).should == [2, 3] + a.send(@method, from...to).should == [2] + a.send(@method, 1..0).should == [] + a.send(@method, 1...0).should == [] + + lambda { a.send(@method, "a" .. "b") }.should raise_error(TypeError) + lambda { a.send(@method, "a" ... "b") }.should raise_error(TypeError) + lambda { a.send(@method, from .. "b") }.should raise_error(TypeError) + lambda { a.send(@method, from ... "b") }.should raise_error(TypeError) + end + + it "returns the same elements as [m..n] and [m...n] with Range subclasses" do + a = [1, 2, 3, 4] + range_incl = ArraySpecs::MyRange.new(1, 2) + range_excl = ArraySpecs::MyRange.new(-3, -1, true) + + a.send(@method, range_incl).should == [2, 3] + a.send(@method, range_excl).should == [2, 3] + end + + it "returns nil for a requested index not in the array with [index]" do + [ "a", "b", "c", "d", "e" ].send(@method, 5).should == nil + end + + it "returns [] if the index is valid but length is zero with [index, length]" do + [ "a", "b", "c", "d", "e" ].send(@method, 0, 0).should == [] + [ "a", "b", "c", "d", "e" ].send(@method, 2, 0).should == [] + end + + it "returns nil if length is zero but index is invalid with [index, length]" do + [ "a", "b", "c", "d", "e" ].send(@method, 100, 0).should == nil + [ "a", "b", "c", "d", "e" ].send(@method, -50, 0).should == nil + end + + # This is by design. It is in the official documentation. + it "returns [] if index == array.size with [index, length]" do + %w|a b c d e|.send(@method, 5, 2).should == [] + end + + it "returns nil if index > array.size with [index, length]" do + %w|a b c d e|.send(@method, 6, 2).should == nil + end + + it "returns nil if length is negative with [index, length]" do + %w|a b c d e|.send(@method, 3, -1).should == nil + %w|a b c d e|.send(@method, 2, -2).should == nil + %w|a b c d e|.send(@method, 1, -100).should == nil + end + + it "returns nil if no requested index is in the array with [m..n]" do + [ "a", "b", "c", "d", "e" ].send(@method, 6..10).should == nil + end + + it "returns nil if range start is not in the array with [m..n]" do + [ "a", "b", "c", "d", "e" ].send(@method, -10..2).should == nil + [ "a", "b", "c", "d", "e" ].send(@method, 10..12).should == nil + end + + it "returns an empty array when m == n with [m...n]" do + [1, 2, 3, 4, 5].send(@method, 1...1).should == [] + end + + it "returns an empty array with [0...0]" do + [1, 2, 3, 4, 5].send(@method, 0...0).should == [] + end + + it "returns a subarray where m, n negatives and m < n with [m..n]" do + [ "a", "b", "c", "d", "e" ].send(@method, -3..-2).should == ["c", "d"] + end + + it "returns an array containing the first element with [0..0]" do + [1, 2, 3, 4, 5].send(@method, 0..0).should == [1] + end + + it "returns the entire array with [0..-1]" do + [1, 2, 3, 4, 5].send(@method, 0..-1).should == [1, 2, 3, 4, 5] + end + + it "returns all but the last element with [0...-1]" do + [1, 2, 3, 4, 5].send(@method, 0...-1).should == [1, 2, 3, 4] + end + + it "returns [3] for [2..-1] out of [1, 2, 3]" do + [1,2,3].send(@method, 2..-1).should == [3] + end + + it "returns an empty array when m > n and m, n are positive with [m..n]" do + [1, 2, 3, 4, 5].send(@method, 3..2).should == [] + end + + it "returns an empty array when m > n and m, n are negative with [m..n]" do + [1, 2, 3, 4, 5].send(@method, -2..-3).should == [] + end + + it "does not expand array when the indices are outside of the array bounds" do + a = [1, 2] + a.send(@method, 4).should == nil + a.should == [1, 2] + a.send(@method, 4, 0).should == nil + a.should == [1, 2] + a.send(@method, 6, 1).should == nil + a.should == [1, 2] + a.send(@method, 8...8).should == nil + a.should == [1, 2] + a.send(@method, 10..10).should == nil + a.should == [1, 2] + end + + describe "with a subclass of Array" do + before :each do + ScratchPad.clear + + @array = ArraySpecs::MyArray[1, 2, 3, 4, 5] + end + + it "returns a subclass instance with [n, m]" do + @array.send(@method, 0, 2).should be_an_instance_of(ArraySpecs::MyArray) + end + + it "returns a subclass instance with [-n, m]" do + @array.send(@method, -3, 2).should be_an_instance_of(ArraySpecs::MyArray) + end + + it "returns a subclass instance with [n..m]" do + @array.send(@method, 1..3).should be_an_instance_of(ArraySpecs::MyArray) + end + + it "returns a subclass instance with [n...m]" do + @array.send(@method, 1...3).should be_an_instance_of(ArraySpecs::MyArray) + end + + it "returns a subclass instance with [-n..-m]" do + @array.send(@method, -3..-1).should be_an_instance_of(ArraySpecs::MyArray) + end + + it "returns a subclass instance with [-n...-m]" do + @array.send(@method, -3...-1).should be_an_instance_of(ArraySpecs::MyArray) + end + + it "returns an empty array when m == n with [m...n]" do + @array.send(@method, 1...1).should == [] + ScratchPad.recorded.should be_nil + end + + it "returns an empty array with [0...0]" do + @array.send(@method, 0...0).should == [] + ScratchPad.recorded.should be_nil + end + + it "returns an empty array when m > n and m, n are positive with [m..n]" do + @array.send(@method, 3..2).should == [] + ScratchPad.recorded.should be_nil + end + + it "returns an empty array when m > n and m, n are negative with [m..n]" do + @array.send(@method, -2..-3).should == [] + ScratchPad.recorded.should be_nil + end + + it "returns [] if index == array.size with [index, length]" do + @array.send(@method, 5, 2).should == [] + ScratchPad.recorded.should be_nil + end + + it "returns [] if the index is valid but length is zero with [index, length]" do + @array.send(@method, 0, 0).should == [] + @array.send(@method, 2, 0).should == [] + ScratchPad.recorded.should be_nil + end + + it "does not call #initialize on the subclass instance" do + @array.send(@method, 0, 3).should == [1, 2, 3] + ScratchPad.recorded.should be_nil + end + end + + it "raises a RangeError when the start index is out of range of Fixnum" do + array = [1, 2, 3, 4, 5, 6] + obj = mock('large value') + obj.should_receive(:to_int).and_return(0x8000_0000_0000_0000_0000) + lambda { array.send(@method, obj) }.should raise_error(RangeError) + + obj = 8e19 + lambda { array.send(@method, obj) }.should raise_error(RangeError) + end + + it "raises a RangeError when the length is out of range of Fixnum" do + array = [1, 2, 3, 4, 5, 6] + obj = mock('large value') + obj.should_receive(:to_int).and_return(0x8000_0000_0000_0000_0000) + lambda { array.send(@method, 1, obj) }.should raise_error(RangeError) + + obj = 8e19 + lambda { array.send(@method, 1, obj) }.should raise_error(RangeError) + end +end |