rspec测试中使用<code>eq</code>和<code>eql</code>时，Rspec`eq`和`eql`测试

Question

？有没有之间的差异：

it "adds the correct information to entries" do 
    # book = AddressBook.new # => Replaced by line 4 
    book.add_entry('Ada Lovelace', '010.012.1815', 'augusta.king@lovelace.com') 
    new_entry = book.entries[0] 

    expect(new_entry.name).to eq('Ada Lovelace') 
    expect(new_entry.phone_number).to eq('010.012.1815') 
    expect(new_entry.email).to eq('augusta.king@lovelace.com') 
end 

和：

it "adds the correct information to entries" do 
    # book = AddressBook.new # => Replaced by line 4 
    book.add_entry('Ada Lovelace', '010.012.1815', 'augusta.king@lovelace.com') 
    new_entry = book.entries[0] 

    expect(new_entry.name).to eql('Ada Lovelace') 
    expect(new_entry.phone_number).to eql('010.012.1815') 
    expect(new_entry.email).to eql('augusta.king@lovelace.com') 
end 

Answer 1

这里有细微的差别，建立在平等的类型，在比较中使用。

从Rpsec文档：

Ruby exposes several different methods for handling equality: 

a.equal?(b) # object identity - a and b refer to the same object 
a.eql?(b) # object equivalence - a and b have the same value 
a == b # object equivalence - a and b have the same value with type conversions] 

eq使用==操作者为了进行比较，和eql忽略类型转换。