diff options
Diffstat (limited to 'spec/ruby/core/struct/values_at_spec.rb')
-rw-r--r-- | spec/ruby/core/struct/values_at_spec.rb | 55 |
1 files changed, 49 insertions, 6 deletions
diff --git a/spec/ruby/core/struct/values_at_spec.rb b/spec/ruby/core/struct/values_at_spec.rb index 7e517cdb4b..5e5a496600 100644 --- a/spec/ruby/core/struct/values_at_spec.rb +++ b/spec/ruby/core/struct/values_at_spec.rb @@ -1,16 +1,59 @@ require_relative '../../spec_helper' require_relative 'fixtures/classes' +# Should be synchronized with core/array/values_at_spec.rb describe "Struct#values_at" do - it "returns an array of values" do + before do clazz = Struct.new(:name, :director, :year) - movie = clazz.new('Sympathy for Mr. Vengence', 'Chan-wook Park', 2002) - movie.values_at(0, 1).should == ['Sympathy for Mr. Vengence', 'Chan-wook Park'] - movie.values_at(0..2).should == ['Sympathy for Mr. Vengence', 'Chan-wook Park', 2002] + @movie = clazz.new('Sympathy for Mr. Vengeance', 'Chan-wook Park', 2002) + end + + context "when passed a list of Integers" do + it "returns an array containing each value given by one of integers" do + @movie.values_at(0, 1).should == ['Sympathy for Mr. Vengeance', 'Chan-wook Park'] + end + + it "raises IndexError if any of integers is out of range" do + -> { @movie.values_at(3) }.should raise_error(IndexError, "offset 3 too large for struct(size:3)") + -> { @movie.values_at(-4) }.should raise_error(IndexError, "offset -4 too small for struct(size:3)") + end + end + + context "when passed an integer Range" do + it "returns an array containing each value given by the elements of the range" do + @movie.values_at(0..2).should == ['Sympathy for Mr. Vengeance', 'Chan-wook Park', 2002] + end + + it "fills with nil values for range elements larger than the structure" do + @movie.values_at(0..3).should == ['Sympathy for Mr. Vengeance', 'Chan-wook Park', 2002, nil] + end + + it "raises RangeError if any element of the range is negative and out of range" do + -> { @movie.values_at(-4..3) }.should raise_error(RangeError, "-4..3 out of range") + end + + it "supports endless Range" do + @movie.values_at(0..).should == ["Sympathy for Mr. Vengeance", "Chan-wook Park", 2002] + end + + it "supports beginningless Range" do + @movie.values_at(..2).should == ["Sympathy for Mr. Vengeance", "Chan-wook Park", 2002] + end + end + + it "supports multiple integer Ranges" do + @movie.values_at(0..2, 1..2).should == ['Sympathy for Mr. Vengeance', 'Chan-wook Park', 2002, 'Chan-wook Park', 2002] + end + + it "supports mixing integer Ranges and Integers" do + @movie.values_at(0..2, 2).should == ['Sympathy for Mr. Vengeance', 'Chan-wook Park', 2002, 2002] + end + + it "returns a new empty Array if no arguments given" do + @movie.values_at().should == [] end it "fails when passed unsupported types" do - car = StructClasses::Car.new('Ford', 'Ranger') - -> { car.values_at('make') }.should raise_error(TypeError) + -> { @movie.values_at('make') }.should raise_error(TypeError, "no implicit conversion of String into Integer") end end |