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-rw-r--r--spec/ruby/optional/capi/numeric_spec.rb432
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diff --git a/spec/ruby/optional/capi/numeric_spec.rb b/spec/ruby/optional/capi/numeric_spec.rb
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+require File.expand_path('../spec_helper', __FILE__)
+
+load_extension("numeric")
+
+describe "CApiNumericSpecs" do
+ before :each do
+ @s = CApiNumericSpecs.new
+ end
+
+ platform_is wordsize: 64 do
+ describe "rb_num2int" do
+ it "raises a TypeError if passed nil" do
+ lambda { @s.rb_num2int(nil) }.should raise_error(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.rb_num2int(4.2).should == 4
+ end
+
+ it "converts a Bignum" do
+ @s.rb_num2int(0x7fff_ffff).should == 0x7fff_ffff
+ end
+
+ it "converts a Fixnum" do
+ @s.rb_num2int(5).should == 5
+ end
+
+ it "converts -1 to an signed number" do
+ @s.rb_num2int(-1).should == -1
+ end
+
+ it "converts a negative Bignum into an signed number" do
+ @s.rb_num2int(-2147442171).should == -2147442171
+ end
+
+ it "raises a RangeError if the value is more than 32bits" do
+ lambda { @s.rb_num2int(0xffff_ffff+1) }.should raise_error(RangeError)
+ end
+
+ it "calls #to_int to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_int).and_return(2)
+ @s.rb_num2long(obj).should == 2
+ end
+ end
+ end
+
+ platform_is wordsize: 64 do
+ describe "rb_num2uint" do
+ it "raises a TypeError if passed nil" do
+ lambda { @s.rb_num2uint(nil) }.should raise_error(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.rb_num2uint(4.2).should == 4
+ end
+
+ it "converts a Bignum" do
+ @s.rb_num2uint(0xffff_ffff).should == 0xffff_ffff
+ end
+
+ it "converts a Fixnum" do
+ @s.rb_num2uint(5).should == 5
+ end
+
+ it "converts a negative number to the complement" do
+ @s.rb_num2uint(-1).should == 18446744073709551615
+ end
+
+ it "converts a signed int value to the complement" do
+ @s.rb_num2uint(-0x8000_0000).should == 18446744071562067968
+ end
+
+ it "raises a RangeError if the value is more than 32bits" do
+ lambda { @s.rb_num2uint(0xffff_ffff+1) }.should raise_error(RangeError)
+ end
+
+ it "raises a RangeError if the value is less than 32bits negative" do
+ lambda { @s.rb_num2uint(-0x8000_0000-1) }.should raise_error(RangeError)
+ end
+
+ it "raises a RangeError if the value is more than 64bits" do
+ lambda do
+ @s.rb_num2uint(0xffff_ffff_ffff_ffff+1)
+ end.should raise_error(RangeError)
+ end
+
+ it "calls #to_int to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_int).and_return(2)
+ @s.rb_num2uint(obj).should == 2
+ end
+ end
+ end
+
+ describe "rb_num2long" do
+ it "raises a TypeError if passed nil" do
+ lambda { @s.rb_num2long(nil) }.should raise_error(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.rb_num2long(4.2).should == 4
+ end
+
+ it "converts a Bignum" do
+ @s.rb_num2long(0x7fff_ffff).should == 0x7fff_ffff
+ end
+
+ it "converts a Fixnum" do
+ @s.rb_num2long(5).should == 5
+ end
+
+ platform_is wordsize: 32 do
+ it "converts -1 to an signed number" do
+ @s.rb_num2long(-1).should == -1
+ end
+
+ it "converts a negative Bignum into an signed number" do
+ @s.rb_num2long(-2147442171).should == -2147442171
+ end
+
+ it "raises a RangeError if the value is more than 32bits" do
+ lambda { @s.rb_num2long(0xffff_ffff+1) }.should raise_error(RangeError)
+ end
+ end
+
+ platform_is wordsize: 64 do
+ it "converts -1 to an signed number" do
+ @s.rb_num2long(-1).should == -1
+ end
+
+ it "converts a negative Bignum into an signed number" do
+ @s.rb_num2long(-9223372036854734331).should == -9223372036854734331
+ end
+
+ it "raises a RangeError if the value is more than 64bits" do
+ lambda do
+ @s.rb_num2long(0xffff_ffff_ffff_ffff+1)
+ end.should raise_error(RangeError)
+ end
+ end
+
+ it "calls #to_int to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_int).and_return(2)
+ @s.rb_num2long(obj).should == 2
+ end
+ end
+
+ describe "rb_int2num" do
+ it "raises a TypeError if passed nil" do
+ lambda { @s.rb_int2num(nil) }.should raise_error(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.rb_int2num(4.2).should == 4
+ end
+
+ it "raises a RangeError when passed a Bignum" do
+ lambda { @s.rb_int2num(bignum_value) }.should raise_error(RangeError)
+ end
+
+ it "converts a Fixnum" do
+ @s.rb_int2num(5).should == 5
+ end
+
+ it "converts a negative Fixnum" do
+ @s.rb_int2num(-11).should == -11
+ end
+ end
+
+ describe "rb_num2ulong" do
+ it "raises a TypeError if passed nil" do
+ lambda { @s.rb_num2ulong(nil) }.should raise_error(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.rb_num2ulong(4.2).should == 4
+ end
+
+ it "converts a Bignum" do
+ @s.rb_num2ulong(0xffff_ffff).should == 0xffff_ffff
+ end
+
+ it "converts a Fixnum" do
+ @s.rb_num2ulong(5).should == 5
+ end
+
+ platform_is wordsize: 32 do
+ it "converts -1 to an unsigned number" do
+ @s.rb_num2ulong(-1).should == 4294967295
+ end
+
+ it "converts a negative Bignum into an unsigned number" do
+ @s.rb_num2ulong(-2147442171).should == 2147525125
+ end
+
+ it "raises a RangeError if the value is more than 32bits" do
+ lambda { @s.rb_num2ulong(0xffff_ffff+1) }.should raise_error(RangeError)
+ end
+ end
+
+ platform_is wordsize: 64 do
+ it "converts -1 to an unsigned number" do
+ @s.rb_num2ulong(-1).should == 18446744073709551615
+ end
+
+ it "converts a negative Bignum into an unsigned number" do
+ @s.rb_num2ulong(-9223372036854734331).should == 9223372036854817285
+ end
+
+ it "raises a RangeError if the value is more than 64bits" do
+ lambda do
+ @s.rb_num2ulong(0xffff_ffff_ffff_ffff+1)
+ end.should raise_error(RangeError)
+ end
+ end
+
+ it "calls #to_int to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_int).and_return(2)
+ @s.rb_num2ulong(obj).should == 2
+ end
+ end
+
+ describe "rb_Integer" do
+ it "creates a new Integer from a String" do
+ i = @s.rb_Integer("8675309")
+ i.should be_kind_of(Integer)
+ i.should eql(8675309)
+ end
+ end
+
+ describe "rb_ll2inum" do
+ it "creates a new Fixnum from a small signed long long" do
+ i = @s.rb_ll2inum_14()
+ i.should be_kind_of(Fixnum)
+ i.should eql(14)
+ end
+ end
+
+ describe "rb_int2inum" do
+ it "creates a new Fixnum from a long" do
+ i = @s.rb_int2inum_14()
+ i.should be_kind_of(Fixnum)
+ i.should eql(14)
+ end
+ end
+
+ describe "rb_num2dbl" do
+ it "raises a TypeError if passed nil" do
+ lambda { @s.rb_num2dbl(nil) }.should raise_error(TypeError)
+ end
+
+ it "raises a TypeError if passed a String" do
+ lambda { @s.rb_num2dbl("1.2") }.should raise_error(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.rb_num2dbl(4.2).should == 4.2
+ end
+
+ it "converts a Bignum" do
+ @s.rb_num2dbl(2**70).should == (2**70).to_f
+ end
+
+ it "converts a Fixnum" do
+ @s.rb_num2dbl(5).should == 5.0
+ end
+
+ it "calls #to_f to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_f).and_return(2.0)
+ @s.rb_num2dbl(obj).should == 2.0
+ end
+ end
+
+ describe "NUM2CHR" do
+ it "returns the first character of a String" do
+ @s.NUM2CHR("Abc").should == 65
+ end
+
+ it "returns the least significant byte of an Integer" do
+ @s.NUM2CHR(0xa7c).should == 0x07c
+ end
+
+ it "returns the least significant byte of a Float converted to an Integer" do
+ @s.NUM2CHR(0xa7c.to_f).should == 0x07c
+ end
+
+ it "raises a TypeError when passed an empty String" do
+ lambda { @s.NUM2CHR("") }.should raise_error(TypeError)
+ end
+ end
+
+ describe "rb_num_zerodiv" do
+ it "raises a RuntimeError" do
+ lambda { @s.rb_num_zerodiv() }.should raise_error(ZeroDivisionError, 'divided by 0')
+ end
+ end
+
+ describe "rb_cmpint" do
+ it "returns a Fixnum if passed one" do
+ @s.rb_cmpint(1, 2).should == 1
+ end
+
+ it "uses > to check if the value is greater than 1" do
+ m = mock("number")
+ m.should_receive(:>).and_return(true)
+ @s.rb_cmpint(m, 4).should == 1
+ end
+
+ it "uses < to check if the value is less than 1" do
+ m = mock("number")
+ m.should_receive(:>).and_return(false)
+ m.should_receive(:<).and_return(true)
+ @s.rb_cmpint(m, 4).should == -1
+ end
+
+ it "returns 0 if < and > are false" do
+ m = mock("number")
+ m.should_receive(:>).and_return(false)
+ m.should_receive(:<).and_return(false)
+ @s.rb_cmpint(m, 4).should == 0
+ end
+
+ it "raises an ArgumentError when passed nil" do
+ lambda {
+ @s.rb_cmpint(nil, 4)
+ }.should raise_error(ArgumentError)
+ end
+ end
+
+ describe "rb_num_coerce_bin" do
+ it "calls #coerce on the first argument" do
+ obj = mock("rb_num_coerce_bin")
+ obj.should_receive(:coerce).with(2).and_return([1, 2])
+
+ @s.rb_num_coerce_bin(2, obj, :+).should == 3
+ end
+
+ it "calls the specified method on the first argument returned by #coerce" do
+ obj = mock("rb_num_coerce_bin")
+ obj.should_receive(:coerce).with(2).and_return([obj, 2])
+ obj.should_receive(:+).with(2).and_return(3)
+
+ @s.rb_num_coerce_bin(2, obj, :+).should == 3
+ end
+
+ it "raises a TypeError if #coerce does not return an Array" do
+ obj = mock("rb_num_coerce_bin")
+ obj.should_receive(:coerce).with(2).and_return(nil)
+
+ lambda { @s.rb_num_coerce_bin(2, obj, :+) }.should raise_error(TypeError)
+ end
+ end
+
+ describe "rb_num_coerce_cmp" do
+ it "calls #coerce on the first argument" do
+ obj = mock("rb_num_coerce_cmp")
+ obj.should_receive(:coerce).with(2).and_return([1, 2])
+
+ @s.rb_num_coerce_cmp(2, obj, :<=>).should == -1
+ end
+
+ it "calls the specified method on the first argument returned by #coerce" do
+ obj = mock("rb_num_coerce_cmp")
+ obj.should_receive(:coerce).with(2).and_return([obj, 2])
+ obj.should_receive(:<=>).with(2).and_return(-1)
+
+ @s.rb_num_coerce_cmp(2, obj, :<=>).should == -1
+ end
+
+ ruby_version_is ""..."2.5" do
+ it "returns nil if passed nil" do
+ -> {
+ @result = @s.rb_num_coerce_cmp(nil, 2, :<=>)
+ }.should complain(/comparison operators will no more rescue exceptions/)
+ @result.should be_nil
+ end
+ end
+
+ ruby_version_is "2.5" do
+ it "lets the exception go through if #coerce raises an exception" do
+ obj = mock("rb_num_coerce_cmp")
+ obj.should_receive(:coerce).with(2).and_raise(RuntimeError.new("my error"))
+ -> {
+ @s.rb_num_coerce_cmp(2, obj, :<=>)
+ }.should raise_error(RuntimeError, "my error")
+ end
+ end
+
+ it "returns nil if #coerce does not return an Array" do
+ obj = mock("rb_num_coerce_cmp")
+ obj.should_receive(:coerce).with(2).and_return(nil)
+
+ @s.rb_num_coerce_cmp(2, obj, :<=>).should be_nil
+ end
+ end
+
+ describe "rb_num_coerce_relop" do
+ it "calls #coerce on the first argument" do
+ obj = mock("rb_num_coerce_relop")
+ obj.should_receive(:coerce).with(2).and_return([1, 2])
+
+ @s.rb_num_coerce_relop(2, obj, :<).should be_true
+ end
+
+ it "calls the specified method on the first argument returned by #coerce" do
+ obj = mock("rb_num_coerce_relop")
+ obj.should_receive(:coerce).with(2).and_return([obj, 2])
+ obj.should_receive(:<).with(2).and_return(false)
+
+ @s.rb_num_coerce_relop(2, obj, :<).should be_false
+ end
+
+ it "raises an ArgumentError if #<op> returns nil" do
+ obj = mock("rb_num_coerce_relop")
+ obj.should_receive(:coerce).with(2).and_return([obj, 2])
+ obj.should_receive(:<).with(2).and_return(nil)
+
+ lambda { @s.rb_num_coerce_relop(2, obj, :<) }.should raise_error(ArgumentError)
+ end
+
+ it "raises an ArgumentError if #coerce does not return an Array" do
+ obj = mock("rb_num_coerce_relop")
+ obj.should_receive(:coerce).with(2).and_return(nil)
+
+ lambda { @s.rb_num_coerce_relop(2, obj, :<) }.should raise_error(ArgumentError)
+ end
+ end
+end
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