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-rw-r--r--spec/ruby/core/integer/divide_spec.rb93
1 files changed, 91 insertions, 2 deletions
diff --git a/spec/ruby/core/integer/divide_spec.rb b/spec/ruby/core/integer/divide_spec.rb
index 6c81d5474f..c49b4b0d4a 100644
--- a/spec/ruby/core/integer/divide_spec.rb
+++ b/spec/ruby/core/integer/divide_spec.rb
@@ -1,7 +1,96 @@
require File.expand_path('../../../spec_helper', __FILE__)
-require File.expand_path('../shared/arithmetic_exception_in_coerce', __FILE__)
+require File.expand_path('../shared/arithmetic_coerce', __FILE__)
describe "Integer#/" do
- it_behaves_like :integer_arithmetic_exception_in_coerce, :/
+ ruby_version_is "2.4"..."2.5" do
+ it_behaves_like :integer_arithmetic_coerce_rescue, :/
+ end
+
+ ruby_version_is "2.5" do
+ it_behaves_like :integer_arithmetic_coerce_not_rescue, :/
+ end
+
+ context "fixnum" do
+ it "returns self divided by the given argument" do
+ (2 / 2).should == 1
+ (3 / 2).should == 1
+ end
+
+ it "supports dividing negative numbers" do
+ (-1 / 10).should == -1
+ end
+
+ it "returns result the same class as the argument" do
+ (3 / 2).should == 1
+ (3 / 2.0).should == 1.5
+ (3 / Rational(2, 1)).should == Rational(3, 2)
+ end
+
+ it "raises a ZeroDivisionError if the given argument is zero and not a Float" do
+ lambda { 1 / 0 }.should raise_error(ZeroDivisionError)
+ end
+
+ it "does NOT raise ZeroDivisionError if the given argument is zero and is a Float" do
+ (1 / 0.0).to_s.should == 'Infinity'
+ (-1 / 0.0).to_s.should == '-Infinity'
+ end
+
+ it "coerces fixnum and return self divided by other" do
+ (-1 / 50.4).should be_close(-0.0198412698412698, TOLERANCE)
+ (1 / bignum_value).should == 0
+ end
+
+ it "raises a TypeError when given a non-Integer" do
+ lambda { 13 / mock('10') }.should raise_error(TypeError)
+ lambda { 13 / "10" }.should raise_error(TypeError)
+ lambda { 13 / :symbol }.should raise_error(TypeError)
+ end
+ end
+
+ context "bignum" do
+ before :each do
+ @bignum = bignum_value(88)
+ end
+
+ it "returns self divided by other" do
+ (@bignum / 4).should == 2305843009213693974
+
+ (@bignum / bignum_value(2)).should == 1
+
+ (-(10**50) / -(10**40 + 1)).should == 9999999999
+ ((10**50) / (10**40 + 1)).should == 9999999999
+
+ ((-10**50) / (10**40 + 1)).should == -10000000000
+ ((10**50) / -(10**40 + 1)).should == -10000000000
+ end
+
+ it "returns self divided by Float" do
+ not_supported_on :opal do
+ (bignum_value(88) / 4294967295.0).should be_close(2147483648.5, TOLERANCE)
+ end
+ (bignum_value(88) / 4294967295.5).should be_close(2147483648.25, TOLERANCE)
+ end
+
+ it "returns result the same class as the argument" do
+ (@bignum / 4).should == 2305843009213693974
+ (@bignum / 4.0).should be_close(2305843009213693974, TOLERANCE)
+ (@bignum / Rational(4, 1)).should == Rational(2305843009213693974, 1)
+ end
+
+ it "does NOT raise ZeroDivisionError if other is zero and is a Float" do
+ (bignum_value / 0.0).to_s.should == 'Infinity'
+ (bignum_value / -0.0).to_s.should == '-Infinity'
+ end
+
+ it "raises a ZeroDivisionError if other is zero and not a Float" do
+ lambda { @bignum / 0 }.should raise_error(ZeroDivisionError)
+ end
+
+ it "raises a TypeError when given a non-numeric" do
+ lambda { @bignum / mock('10') }.should raise_error(TypeError)
+ lambda { @bignum / "2" }.should raise_error(TypeError)
+ lambda { @bignum / :symbol }.should raise_error(TypeError)
+ end
+ end
end