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-rw-r--r--spec/ruby/optional/capi/numeric_spec.rb495
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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_relative 'spec_helper'
+
+load_extension("numeric")
+
+describe "CApiNumericSpecs" do
+ before :each do
+ @s = CApiNumericSpecs.new
+ end
+
+ describe "NUM2INT" do
+ it "raises a TypeError if passed nil" do
+ -> { @s.NUM2INT(nil) }.should.raise(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.NUM2INT(4.2).should == 4
+ end
+
+ it "converts a Bignum" do
+ @s.NUM2INT(0x7fff_ffff).should == 0x7fff_ffff
+ end
+
+ it "converts a Fixnum" do
+ @s.NUM2INT(5).should == 5
+ end
+
+ it "converts -1 to an signed number" do
+ @s.NUM2INT(-1).should == -1
+ end
+
+ it "converts a negative Bignum into an signed number" do
+ @s.NUM2INT(-2147442171).should == -2147442171
+ end
+
+ it "raises a RangeError if the value is more than 32bits" do
+ -> { @s.NUM2INT(0xffff_ffff+1) }.should.raise(RangeError)
+ end
+
+ it "calls #to_int to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_int).and_return(2)
+ @s.NUM2INT(obj).should == 2
+ end
+ end
+
+ describe "NUM2UINT" do
+ it "raises a TypeError if passed nil" do
+ -> { @s.NUM2UINT(nil) }.should.raise(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.NUM2UINT(4.2).should == 4
+ end
+
+ it "converts a Bignum" do
+ @s.NUM2UINT(0xffff_ffff).should == 0xffff_ffff
+ end
+
+ it "converts a Fixnum" do
+ @s.NUM2UINT(5).should == 5
+ end
+
+ it "converts a negative number to the complement" do
+ @s.NUM2UINT(-1).should == 4294967295
+ end
+
+ it "converts a signed int value to the complement" do
+ @s.NUM2UINT(-0x8000_0000).should == 2147483648
+ end
+
+ it "raises a RangeError if the value is more than 32bits" do
+ -> { @s.NUM2UINT(0xffff_ffff+1) }.should.raise(RangeError)
+ end
+
+ it "raises a RangeError if the value is less than 32bits negative" do
+ -> { @s.NUM2UINT(-0x8000_0000-1) }.should.raise(RangeError)
+ end
+
+ it "raises a RangeError if the value is more than 64bits" do
+ -> do
+ @s.NUM2UINT(0xffff_ffff_ffff_ffff+1)
+ end.should.raise(RangeError)
+ end
+
+ it "calls #to_int to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_int).and_return(2)
+ @s.NUM2UINT(obj).should == 2
+ end
+ end
+
+ describe "NUM2LONG" do
+ it "raises a TypeError if passed nil" do
+ -> { @s.NUM2LONG(nil) }.should.raise(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.NUM2LONG(4.2).should == 4
+ end
+
+ it "converts a Bignum" do
+ @s.NUM2LONG(0x7fff_ffff).should == 0x7fff_ffff
+ end
+
+ it "converts a Fixnum" do
+ @s.NUM2LONG(5).should == 5
+ end
+
+ platform_is c_long_size: 32 do
+ it "converts -1 to an signed number" do
+ @s.NUM2LONG(-1).should == -1
+ end
+
+ it "converts a negative Bignum into an signed number" do
+ @s.NUM2LONG(-2147442171).should == -2147442171
+ end
+
+ it "raises a RangeError if the value is more than 32bits" do
+ -> { @s.NUM2LONG(0xffff_ffff+1) }.should.raise(RangeError)
+ end
+ end
+
+ platform_is c_long_size: 64 do
+ it "converts -1 to an signed number" do
+ @s.NUM2LONG(-1).should == -1
+ end
+
+ it "converts a negative Bignum into an signed number" do
+ @s.NUM2LONG(-9223372036854734331).should == -9223372036854734331
+ end
+
+ it "raises a RangeError if the value is more than 64bits" do
+ -> do
+ @s.NUM2LONG(0xffff_ffff_ffff_ffff+1)
+ end.should.raise(RangeError)
+ end
+ end
+
+ it "calls #to_int to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_int).and_return(2)
+ @s.NUM2LONG(obj).should == 2
+ end
+ end
+
+ describe "NUM2SHORT" do
+ it "raises a TypeError if passed nil" do
+ -> { @s.NUM2SHORT(nil) }.should.raise(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.NUM2SHORT(4.2).should == 4
+ end
+
+ it "converts a Fixnum" do
+ @s.NUM2SHORT(5).should == 5
+ end
+
+ it "converts -1 to an signed number" do
+ @s.NUM2SHORT(-1).should == -1
+ end
+
+ it "raises a RangeError if the value is more than 32bits" do
+ -> { @s.NUM2SHORT(0xffff_ffff+1) }.should.raise(RangeError)
+ end
+
+ it "calls #to_int to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_int).and_return(2)
+ @s.NUM2SHORT(obj).should == 2
+ end
+ end
+
+ describe "INT2NUM" do
+ it "raises a TypeError if passed nil" do
+ -> { @s.INT2NUM(nil) }.should.raise(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.INT2NUM(4.2).should == 4
+ end
+
+ it "raises a RangeError when passed a Bignum" do
+ -> { @s.INT2NUM(bignum_value) }.should.raise(RangeError)
+ end
+
+ it "converts a Fixnum" do
+ @s.INT2NUM(5).should == 5
+ end
+
+ it "converts a negative Fixnum" do
+ @s.INT2NUM(-11).should == -11
+ end
+ end
+
+ describe "NUM2ULONG" do
+ it "raises a TypeError if passed nil" do
+ -> { @s.NUM2ULONG(nil) }.should.raise(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.NUM2ULONG(4.2).should == 4
+ end
+
+ it "converts a Bignum" do
+ @s.NUM2ULONG(0xffff_ffff).should == 0xffff_ffff
+ end
+
+ it "converts a Fixnum" do
+ @s.NUM2ULONG(5).should == 5
+ end
+
+ platform_is c_long_size: 32 do
+ it "converts -1 to an unsigned number" do
+ @s.NUM2ULONG(-1).should == 4294967295
+ end
+
+ it "converts a negative Bignum into an unsigned number" do
+ @s.NUM2ULONG(-2147442171).should == 2147525125
+ end
+
+ it "converts positive Bignums if the values is less than 64bits" do
+ @s.NUM2ULONG(0xffff_ffff).should == 0xffff_ffff
+ @s.NUM2ULONG(2**30).should == 2**30
+ @s.NUM2ULONG(fixnum_max+1).should == fixnum_max+1
+ @s.NUM2ULONG(fixnum_max).should == fixnum_max
+ end
+
+ it "raises a RangeError if the value is more than 32bits" do
+ -> { @s.NUM2ULONG(0xffff_ffff+1) }.should.raise(RangeError)
+ end
+ end
+
+ platform_is c_long_size: 64 do
+ it "converts -1 to an unsigned number" do
+ @s.NUM2ULONG(-1).should == 18446744073709551615
+ end
+
+ it "converts a negative Bignum into an unsigned number" do
+ @s.NUM2ULONG(-9223372036854734331).should == 9223372036854817285
+ end
+
+ it "converts positive Bignums if the values is less than 64bits" do
+ @s.NUM2ULONG(0xffff_ffff_ffff_ffff).should == 0xffff_ffff_ffff_ffff
+ @s.NUM2ULONG(2**62).should == 2**62
+ @s.NUM2ULONG(fixnum_max+1).should == fixnum_max+1
+ @s.NUM2ULONG(fixnum_max).should == fixnum_max
+ end
+
+ it "raises a RangeError if the value is more than 64bits" do
+ -> do
+ @s.NUM2ULONG(0xffff_ffff_ffff_ffff+1)
+ end.should.raise(RangeError)
+ end
+ end
+
+ it "calls #to_int to coerce the value" do
+ obj = mock("number")
+ obj.should_receive(:to_int).and_return(2)
+ @s.NUM2ULONG(obj).should == 2
+ end
+ end
+
+ describe "rb_Integer" do
+ it "creates an Integer from a String" do
+ i = @s.rb_Integer("8675309")
+ i.should == 8675309
+ end
+ end
+
+ describe "rb_ll2inum" do
+ it "creates a Fixnum from a small signed long long" do
+ i = @s.rb_ll2inum_14()
+ i.should == 14
+ end
+ end
+
+ describe "rb_ull2inum" do
+ it "creates a Fixnum from a small unsigned long long" do
+ i = @s.rb_ull2inum_14()
+ i.should == 14
+ end
+
+ it "creates a positive Bignum from a negative long long" do
+ i = @s.rb_ull2inum_n14()
+ i.should == (2 ** (@s.size_of_long_long * 8) - 14)
+ end
+ end
+
+ describe "rb_int2inum" do
+ it "creates a Fixnum from a long" do
+ i = @s.rb_int2inum_14()
+ i.should == 14
+ end
+ end
+
+ describe "rb_uint2inum" do
+ it "creates a Fixnum from a long" do
+ i = @s.rb_uint2inum_14()
+ i.should == 14
+ end
+
+ it "creates a positive Bignum from a negative long" do
+ i = @s.rb_uint2inum_n14()
+ i.should == (2 ** (@s.size_of_VALUE * 8) - 14)
+ end
+ end
+
+ describe "NUM2DBL" do
+ it "raises a TypeError if passed nil" do
+ -> { @s.NUM2DBL(nil) }.should.raise(TypeError)
+ end
+
+ it "raises a TypeError if passed a String" do
+ -> { @s.NUM2DBL("1.2") }.should.raise(TypeError)
+ end
+
+ it "converts a Float" do
+ @s.NUM2DBL(4.2).should == 4.2
+ end
+
+ it "converts a Bignum" do
+ @s.NUM2DBL(2**70).should == (2**70).to_f
+ end
+
+ it "converts a Fixnum" do
+ @s.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.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
+ -> { @s.NUM2CHR("") }.should.raise(TypeError)
+ end
+ end
+
+ describe "rb_num_zerodiv" do
+ it "raises a RuntimeError" do
+ -> { @s.rb_num_zerodiv() }.should.raise(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
+ -> {
+ @s.rb_cmpint(nil, 4)
+ }.should.raise(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)
+
+ -> { @s.rb_num_coerce_bin(2, obj, :+) }.should.raise(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
+
+ 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(RuntimeError, "my error")
+ 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 == 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 == 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 == 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)
+
+ -> { @s.rb_num_coerce_relop(2, obj, :<) }.should.raise(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)
+
+ -> { @s.rb_num_coerce_relop(2, obj, :<) }.should.raise(ArgumentError)
+ end
+ end
+
+ describe "rb_absint_singlebit_p" do
+ it "returns 1 if absolute value fits into a bit" do
+ @s.rb_absint_singlebit_p(1).should == 1
+ @s.rb_absint_singlebit_p(2).should == 1
+ @s.rb_absint_singlebit_p(3).should == 0
+ @s.rb_absint_singlebit_p(-1).should == 1
+ @s.rb_absint_singlebit_p(-2).should == 1
+ @s.rb_absint_singlebit_p(-3).should == 0
+ @s.rb_absint_singlebit_p(bignum_value).should == 1
+ @s.rb_absint_singlebit_p(bignum_value(1)).should == 0
+ @s.rb_absint_singlebit_p(-bignum_value).should == 1
+ @s.rb_absint_singlebit_p(-bignum_value(1)).should == 0
+ end
+ end
+end
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