Add specs for rb_num2(u)int

spec/ruby/optional/capi/ext/numeric_spec.c

@@ -35,12 +35,24 @@ static VALUE numeric_spec_rb_num2dbl(VALUE self, VALUE num) {
 }
 #endif
 
+#ifdef HAVE_RB_NUM2LONG
+static VALUE numeric_spec_rb_num2int(VALUE self, VALUE num) {
+  return LONG2NUM(rb_num2int(num));
+}
+#endif
+
 #ifdef HAVE_RB_NUM2LONG
 static VALUE numeric_spec_rb_num2long(VALUE self, VALUE num) {
   return LONG2NUM(rb_num2long(num));
 }
 #endif
 
+#ifdef HAVE_RB_NUM2UINT
+static VALUE numeric_spec_rb_num2uint(VALUE self, VALUE num) {
+  return ULONG2NUM(rb_num2uint(num));
+}
+#endif
+
 #ifdef HAVE_RB_NUM2ULONG
 static VALUE numeric_spec_rb_num2ulong(VALUE self, VALUE num) {
   return ULONG2NUM(rb_num2ulong(num));
@@ -102,10 +114,18 @@ void Init_numeric_spec() {
   rb_define_method(cls, "rb_num2dbl", numeric_spec_rb_num2dbl, 1);
 #endif
 
+#ifdef HAVE_RB_NUM2INT
+  rb_define_method(cls, "rb_num2int", numeric_spec_rb_num2int, 1);
+#endif
+
 #ifdef HAVE_RB_NUM2LONG
   rb_define_method(cls, "rb_num2long", numeric_spec_rb_num2long, 1);
 #endif
 
+#ifdef HAVE_RB_NUM2UINT
+  rb_define_method(cls, "rb_num2uint", numeric_spec_rb_num2uint, 1);
+#endif
+
 #ifdef HAVE_RB_NUM2ULONG
   rb_define_method(cls, "rb_num2ulong", numeric_spec_rb_num2ulong, 1);
 #endif

spec/ruby/optional/capi/ext/rubyspec.h

@@ -399,7 +399,9 @@
 #define HAVE_RB_INTEGER                    1
 #define HAVE_RB_LL2INUM                    1
 #define HAVE_RB_NUM2DBL                    1
+#define HAVE_RB_NUM2INT                    1
 #define HAVE_RB_NUM2LONG                   1
+#define HAVE_RB_NUM2UINT                   1
 #define HAVE_RB_NUM2ULONG                  1
 #define HAVE_RB_NUM_COERCE_BIN             1
 #define HAVE_RB_NUM_COERCE_CMP             1

spec/ruby/optional/capi/numeric_spec.rb

@@ -7,6 +7,76 @@
     @s = CApiNumericSpecs.new
   end
 
+  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
+
+  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 "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 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_num2ulong(obj).should == 2
+    end
+  end
+
   describe "rb_num2long" do
     it "raises a TypeError if passed nil" do
       lambda { @s.rb_num2long(nil) }.should raise_error(TypeError)