measurement_spec.rb in ruby-measurement-1.2.3

- old
+ new
@@ -1,339 +1,373 @@
+# encoding: UTF-8
+
 require 'spec_helper'
 
 RSpec.describe Measurement do
   subject { described_class }
-  
+
   describe '.new' do
     describe 'with valid quantity' do
       it 'sets the quantity' do
         expect(subject.new(3).quantity).to eq 3
       end
-      
+
       it 'sets the default unit' do
         expect(subject.new(3).unit).to eq subject::Unit[:count]
       end
     end
-    
+
     describe 'with valid quantity and unit name' do
       it 'sets the quantity' do
         expect(subject.new(2, :dozen).quantity).to eq 2
       end
-      
+
       it 'sets the unit' do
         expect(subject.new(2, :dozen).unit).to eq subject::Unit[:dozen]
       end
     end
-    
+
     describe 'with valid quantity and unit' do
       it 'sets the quantity' do
         expect(subject.new(2, subject::Unit[:dozen]).quantity).to eq 2
       end
-      
+
       it 'sets the unit' do
         expect(subject.new(2, subject::Unit[:dozen]).unit).to eq subject::Unit[:dozen]
       end
     end
-    
+
     describe 'with invalid quantity' do
       it 'raises exception' do
         expect { subject.new('hi') }.to raise_exception
       end
     end
-    
+
     describe 'with invalid unit' do
       it 'raises exception' do
         expect { subject.new(3, :finklebaum) }.to raise_exception
       end
     end
   end
-  
+
   describe '.parse' do
     describe 'quantity' do
       it 'parses scientific notation' do
         m = subject.parse('4.3e12')
         expect(m.quantity).to eq 4.3e12
         expect(m.unit).to eq Measurement::Unit[:count]
-        
+
         m = subject.parse('4.3e12 dozen')
         expect(m.quantity).to eq 4.3e12
         expect(m.unit).to eq Measurement::Unit[:dozen]
-        
+
         m = subject.parse('4.3e12doz')
         expect(m.quantity).to eq 4.3e12
         expect(m.unit).to eq Measurement::Unit[:dozen]
       end
-      
+
       it 'parses fractions' do
         m = subject.parse('1/4')
         expect(m.quantity).to eq 0.25
         expect(m.unit).to eq Measurement::Unit[:count]
-        
+
         m = subject.parse('1/4 dozen')
         expect(m.quantity).to eq 0.25
         expect(m.unit).to eq Measurement::Unit[:dozen]
-        
+
         m = subject.parse('1/4doz')
         expect(m.quantity).to eq 0.25
         expect(m.unit).to eq Measurement::Unit[:dozen]
       end
-      
+
       it 'parses mixed fractions' do
         m = subject.parse('3 2/5')
         expect(m.quantity).to eq 3.4
         expect(m.unit).to eq Measurement::Unit[:count]
-        
+
         m = subject.parse('3 2/5 dozen')
         expect(m.quantity).to eq 3.4
         expect(m.unit).to eq Measurement::Unit[:dozen]
-        
-        m = subject.parse('3 2/5')
-        expect(m.quantity).to eq 3.4
+      end
+
+      it 'parses fractions with special characters' do
+        m = subject.parse('⅜')
+        expect(m.quantity).to eq 0.375
         expect(m.unit).to eq Measurement::Unit[:count]
+
+        m = subject.parse('⅜ dozen')
+        expect(m.quantity).to eq 0.375
+        expect(m.unit).to eq Measurement::Unit[:dozen]
+
+        m = subject.parse('⅜doz')
+        expect(m.quantity).to eq 0.375
+        expect(m.unit).to eq Measurement::Unit[:dozen]
       end
-      
+
+      it 'parses mixed fractions with special characters' do
+        m = subject.parse('3⅜')
+        expect(m.quantity).to eq 3.375
+        expect(m.unit).to eq Measurement::Unit[:count]
+
+        m = subject.parse('3 ⅜')
+        expect(m.quantity).to eq 3.375
+        expect(m.unit).to eq Measurement::Unit[:count]
+
+        m = subject.parse('3⅜ dozen')
+        expect(m.quantity).to eq 3.375
+        expect(m.unit).to eq Measurement::Unit[:dozen]
+
+        m = subject.parse('3 ⅜ dozen')
+        expect(m.quantity).to eq 3.375
+        expect(m.unit).to eq Measurement::Unit[:dozen]
+
+        m = subject.parse('3⅜doz')
+        expect(m.quantity).to eq 3.375
+        expect(m.unit).to eq Measurement::Unit[:dozen]
+      end
+
       it 'parses decimals' do
         m = subject.parse('2.1')
         expect(m.quantity).to eq 2.1
         expect(m.unit).to eq Measurement::Unit[:count]
-        
+
         m = subject.parse('2.1 dozen')
         expect(m.quantity).to eq 2.1
         expect(m.unit).to eq Measurement::Unit[:dozen]
-        
+
         m = subject.parse('2.1doz')
         expect(m.quantity).to eq 2.1
         expect(m.unit).to eq Measurement::Unit[:dozen]
       end
     end
-    
+
     describe 'unit' do
       it 'converts when defined' do
         expect(subject.parse('3 dozen').unit).to eq Measurement::Unit[:dozen]
       end
-      
+
       it 'raises exception when undefined' do
         expect { subject.parse('3 finklebaums') }.to raise_error
       end
     end
   end
-  
+
   describe '.define' do
     it 'delegates to Unit.define' do
       expect(Measurement::Unit).to receive(:define)
       subject.define(:something)
     end
   end
-  
+
   describe '#convert_to' do
     let(:measurement) { subject.new(3) }
-    
+
     it 'returns copy of self when target unit matches current unit' do
       result = measurement.convert_to(:count)
       expect(result).to_not be measurement
       expect(result).to eq measurement
     end
-    
+
     it 'returns target unit if it exists and is convertable' do
       result = measurement.convert_to(:dozen)
       expect(result.quantity).to eq 0.25
       expect(result.unit).to eq Measurement::Unit[:dozen]
     end
-    
+
     it 'raises exception if unit exists and is not convertable' do
       expect { measurement.convert_to(:inches) }.to raise_error
     end
-    
+
     it 'raises exception if unit does not exist' do
       expect { measurement.convert_to(:finklebaum) }.to raise_error
     end
   end
-  
+
   describe '#convert_to!' do
     let(:measurement) { subject.new(3) }
-    
+
     it 'modifies the object' do
       measurement.convert_to!(:dozen)
       expect(measurement.quantity).to eq 0.25
       expect(measurement.unit).to eq Measurement::Unit[:dozen]
     end
   end
-  
+
   describe '#+' do
     let(:measurement) { subject.new(3) }
-    
+
     it 'adds numeric values' do
       result = measurement + 4
       expect(result.quantity).to eq 7
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'adds units of the same type' do
       other = subject.new(4)
       expect(other.unit).to eq measurement.unit
-      
+
       result = measurement + other
       expect(result.quantity).to eq 7
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'adds units of a convertable type' do
       other = subject.new(2, :dozen)
       expect(other.unit).to_not eq measurement.unit
-      
+
       result = measurement + other
       expect(result.quantity).to eq 27
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'raises exception for incompatible units' do
       other = subject.new(4, :inches)
       expect(other.unit).to_not eq measurement.unit
       expect { measurement + other }.to raise_error
     end
   end
-  
+
   describe '#-' do
     let(:measurement) { subject.new(3) }
-    
+
     it 'subtracts numeric values' do
       result = measurement - 4
       expect(result.quantity).to eq -1
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'subtracts units of the same type' do
       other = subject.new(4)
       expect(other.unit).to eq measurement.unit
-      
+
       result = measurement - other
       expect(result.quantity).to eq -1
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'subtracts units of a convertable type' do
       other = subject.new(2, :dozen)
       expect(other.unit).to_not eq measurement.unit
-      
+
       result = measurement - other
       expect(result.quantity).to eq -21
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'raises exception for incompatible units' do
       other = subject.new(4, :inches)
       expect(other.unit).to_not eq measurement.unit
       expect { measurement - other }.to raise_error
     end
   end
-  
+
   describe '#*' do
     let(:measurement) { subject.new(3) }
-    
+
     it 'multiplies numeric values' do
       result = measurement * 4
       expect(result.quantity).to eq 12
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'multiplies units of the same type' do
       other = subject.new(4)
       expect(other.unit).to eq measurement.unit
-      
+
       result = measurement * other
       expect(result.quantity).to eq 12
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'multiplies units of a convertable type' do
       other = subject.new(2, :dozen)
       expect(other.unit).to_not eq measurement.unit
-      
+
       result = measurement * other
       expect(result.quantity).to eq 72
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'raises exception for incompatible units' do
       other = subject.new(4, :inches)
       expect(other.unit).to_not eq measurement.unit
       expect { measurement * other }.to raise_error
     end
   end
-  
+
   describe '#/' do
     let(:measurement) { subject.new(12) }
-    
+
     it 'divides numeric values' do
       result = measurement / 4
       expect(result.quantity).to eq 3
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'divides units of the same type' do
       other = subject.new(4)
       expect(other.unit).to eq measurement.unit
-      
+
       result = measurement / other
       expect(result.quantity).to eq 3
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'divides units of a convertable type' do
       other = subject.new(1, :dozen)
       expect(other.unit).to_not eq measurement.unit
-      
+
       result = measurement / other
       expect(result.quantity).to eq 1
       expect(result.unit).to eq measurement.unit
     end
-    
+
     it 'raises exception for incompatible units' do
       other = subject.new(4, :inches)
       expect(other.unit).to_not eq measurement.unit
       expect { measurement / other }.to raise_error
     end
   end
-  
+
   describe '#**' do
     let(:measurement) { subject.new(3) }
-    
+
     it 'raises to the power of numeric values' do
       expect((measurement ** 3).quantity).to eq 27
     end
-    
+
     it 'raises exception for non-numeric values' do
       expect { measurement ** subject.new(3) }.to raise_error
     end
   end
-  
+
   describe '#==' do
     let(:measurement) { subject.new(3) }
-    
+
     it 'returns true for measurements with same quantity and unit' do
       expect(measurement == subject.new(3)).to be true
     end
-    
+
     it 'returns false for measurements with same quantity and different unit' do
       expect(measurement == subject.new(3, :dozen)).to be false
     end
-    
+
     it 'returns false for measurements with same unit and different quantity' do
       expect(measurement == subject.new(4)).to be false
     end
-    
+
     it 'returns false for non-measurement objects' do
       expect(measurement == 3).to be false
     end
   end
-  
+
   describe '#to_s' do
     it 'returns the quantity and unit' do
       expect(subject.new(3.5).to_s).to eq '3.5 count'
       expect(subject.new(2, :dozen).to_s).to eq '2 doz'
     end
   end
-  
+
   describe '#inspect' do
     it 'returns the quantity and unit' do
       expect(subject.new(3.5).inspect).to eq '3.5 count'
       expect(subject.new(2, :dozen).inspect).to eq '2 doz'
     end