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Diffstat (limited to 'spec/ruby/optional/capi/range_spec.rb')
| -rw-r--r-- | spec/ruby/optional/capi/range_spec.rb | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/range_spec.rb b/spec/ruby/optional/capi/range_spec.rb new file mode 100644 index 0000000000..9213862aa4 --- /dev/null +++ b/spec/ruby/optional/capi/range_spec.rb @@ -0,0 +1,231 @@ +require_relative 'spec_helper' + +load_extension("range") + +describe "C-API Range function" do + before :each do + @s = CApiRangeSpecs.new + end + + describe "rb_range_new" do + it "constructs a range using the given start and end" do + range = @s.rb_range_new('a', 'c') + range.should == ('a'..'c') + + range.first.should == 'a' + range.last.should == 'c' + end + + it "includes the end object when the third parameter is omitted or false" do + @s.rb_range_new('a', 'c').to_a.should == ['a', 'b', 'c'] + @s.rb_range_new(1, 3).to_a.should == [1, 2, 3] + + @s.rb_range_new('a', 'c', false).to_a.should == ['a', 'b', 'c'] + @s.rb_range_new(1, 3, false).to_a.should == [1, 2, 3] + + @s.rb_range_new('a', 'c', true).to_a.should == ['a', 'b'] + @s.rb_range_new(1, 3, 1).to_a.should == [1, 2] + + @s.rb_range_new(1, 3, mock('[1,2]')).to_a.should == [1, 2] + @s.rb_range_new(1, 3, :test).to_a.should == [1, 2] + end + + it "raises an ArgumentError when the given start and end can't be compared by using #<=>" do + -> { @s.rb_range_new(1, mock('x')) }.should.raise(ArgumentError) + -> { @s.rb_range_new(mock('x'), mock('y')) }.should.raise(ArgumentError) + end + end + + describe "rb_range_values" do + it "stores the range properties" do + beg, fin, excl = @s.rb_range_values(10..20) + beg.should == 10 + fin.should == 20 + excl.should == false + end + + it "stores the range properties of non-Range object" do + range_like = mock('range') + + def range_like.begin + 10 + end + + def range_like.end + 20 + end + + def range_like.exclude_end? + false + end + + beg, fin, excl = @s.rb_range_values(range_like) + beg.should == 10 + fin.should == 20 + excl.should == false + end + end + + describe "rb_range_beg_len" do + it "returns correct begin, length and result" do + r = 2..5 + begp, lenp, result = @s.rb_range_beg_len(r, 10, 0) + result.should == true + begp.should == 2 + lenp.should == 4 + end + + it "returns nil when not in range" do + r = 2..5 + begp, lenp, result = @s.rb_range_beg_len(r, 1, 0) + result.should == nil + end + + it "raises a RangeError when not in range and err is 1" do + r = -5..-1 + -> { @s.rb_range_beg_len(r, 1, 1) }.should.raise(RangeError) + end + + it "returns nil when not in range and err is 0" do + r = -5..-1 + begp, lenp, result = @s.rb_range_beg_len(r, 1, 0) + result.should == nil + end + end + + describe "rb_arithmetic_sequence_extract" do + it "returns begin, end, step, exclude end of an instance of an Enumerator::ArithmeticSequence" do + enum = (10..20).step(5) + enum.should.kind_of?(Enumerator::ArithmeticSequence) + + @s.rb_arithmetic_sequence_extract(enum).should == [1, 10, 20, 5, false] + end + + it "returns begin, end, step, exclude end of an instance of a Range" do + range = (10..20) + @s.rb_arithmetic_sequence_extract(range).should == [1, 10, 20, 1, false] + end + + it "returns begin, end, step, exclude end of a non-Range object with Range properties" do + object = Object.new + def object.begin + 10 + end + def object.end + 20 + end + def object.exclude_end? + false + end + + @s.rb_arithmetic_sequence_extract(object).should == [1, 10, 20, 1, false] + end + + it "returns failed status if given object is not Enumerator::ArithmeticSequence or Range or Range-like object" do + object = Object.new + @s.rb_arithmetic_sequence_extract(object).should == [0] + end + end + + describe "rb_arithmetic_sequence_beg_len_step" do + it "returns correct begin, length, step and result" do + as = (2..5).step(5) + error_code = 0 + + success, beg, len, step = @s.rb_arithmetic_sequence_beg_len_step(as, 6, error_code) + success.should == true + + beg.should == 2 + len.should == 4 + step.should == 5 + end + + it "takes into account excluded end boundary" do + as = (2...5).step(1) + error_code = 0 + + success, _, len, _ = @s.rb_arithmetic_sequence_beg_len_step(as, 6, error_code) + success.should == true + len.should == 3 + end + + it "adds length to negative begin boundary" do + as = (-2..5).step(1) + error_code = 0 + + success, beg, len, _ = @s.rb_arithmetic_sequence_beg_len_step(as, 6, error_code) + success.should == true + + beg.should == 4 + len.should == 2 + end + + it "adds length to negative end boundary" do + as = (2..-1).step(1) + error_code = 0 + + success, beg, len, _ = @s.rb_arithmetic_sequence_beg_len_step(as, 6, error_code) + success.should == true + + beg.should == 2 + len.should == 4 + end + + it "truncates arithmetic sequence length if end boundary greater than specified length value" do + as = (2..10).step(1) + error_code = 0 + + success, _, len, _ = @s.rb_arithmetic_sequence_beg_len_step(as, 6, error_code) + success.should == true + len.should == 4 + end + + it "returns inverted begin and end boundaries when step is negative" do + as = (2..5).step(-2) + error_code = 0 + + success, beg, len, step = @s.rb_arithmetic_sequence_beg_len_step(as, 6, error_code) + success.should == true + + beg.should == 5 + len.should == 0 + step.should == -2 + end + + it "returns nil when not in range and error code = 0" do + as = (2..5).step(1) + error_code = 0 + + success, = @s.rb_arithmetic_sequence_beg_len_step(as, 1, error_code) + success.should == nil + end + + it "returns nil when not in range, negative boundaries and error code = 0" do + as = (-5..-1).step(1) + error_code = 0 + + success, = @s.rb_arithmetic_sequence_beg_len_step(as, 1, 0) + success.should == nil + end + + it "returns begin, length and step and doesn't raise a RangeError when not in range and error code = 1" do + as = (2..5).step(1) + error_code = 1 + + success, beg, len, step = @s.rb_arithmetic_sequence_beg_len_step(as, 1, error_code) + success.should == true + + beg.should == 2 + len.should == 4 + step.should == 1 + end + + it "returns nil and doesn't raise a RangeError when not in range, negative boundaries and error code = 1" do + as = (-5..-1).step(1) + error_code = 1 + + success, = @s.rb_arithmetic_sequence_beg_len_step(as, 1, error_code) + success.should == nil + end + end +end |