[250] | 1 | require File.dirname(__FILE__) + '/../../../../../spec_helper'
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| 2 | include OpenEHR::RM::DataTypes::Quantity
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| 3 |
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| 4 | describe DvQuantity do
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| 5 | before(:each) do
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| 6 | @dv_quantity = DvQuantity.new(:magnitude => 3,
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| 7 | :units => 'mg',
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| 8 | :precision => 0)
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| 9 | end
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| 10 |
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| 11 | it 'should be an instance of DvQuantity' do
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| 12 | @dv_quantity.should be_instance_of DvQuantity
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| 13 | end
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| 14 |
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| 15 | it 's units should be mg' do
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| 16 | @dv_quantity.units.should == 'mg'
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| 17 | end
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| 18 |
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| 19 | describe 'Mathematical Operation' do
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| 20 | before(:each) do
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| 21 | @dv_quantity5 = DvQuantity.new(:magnitude => 5,
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| 22 | :units => 'mg')
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| 23 | end
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| 24 |
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| 25 | it 'should be comparable to 5mg' do
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| 26 | @dv_quantity.is_strictly_comparable_to?(@dv_quantity5).should be_true
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| 27 | end
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| 28 |
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| 29 | it 'should be 8mg added 5mg' do
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| 30 | dv_quantity = @dv_quantity + @dv_quantity5
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| 31 | dv_quantity.magnitude.should == 8
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| 32 | end
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| 33 |
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| 34 | it 'should be -2mg minus 5mg' do
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| 35 | dv_quantity = @dv_quantity - @dv_quantity5
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| 36 | dv_quantity.magnitude.should == -2
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| 37 | end
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| 38 |
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| 39 | it 's unit should be mg' do
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| 40 | (@dv_quantity + @dv_quantity5).units.should == 'mg'
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| 41 | end
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| 42 | end
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| 43 |
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| 44 | it 'should not be comparable to 8km' do
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| 45 | dv_quantity = DvQuantity.new(:magnitude => 8,
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| 46 | :units => 'km')
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| 47 | @dv_quantity.is_strictly_comparable_to?(dv_quantity).should_not be_true
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| 48 | end
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| 49 |
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| 50 | it 'should return false with other type' do
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| 51 | @dv_quantity.is_strictly_comparable_to?(1).should_not be_true
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| 52 | end
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| 53 |
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| 54 | it 's precision should be equal 0' do
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| 55 | @dv_quantity.precision.should == 0
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| 56 | end
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| 57 |
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| 58 | it 'should be integral' do
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| 59 | @dv_quantity.is_integral?.should be_true
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| 60 | end
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| 61 |
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| 62 | it 'should not be integral do' do
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| 63 | @dv_quantity.precision = 3
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| 64 | @dv_quantity.is_integral?.should_not be_true
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| 65 | end
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| 66 |
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| 67 | it 'should not raise ArgumentError with -1 precision' do
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| 68 | lambda {
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| 69 | @dv_quantity.precision = -1
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| 70 | }.should_not raise_error ArgumentError
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| 71 | end
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| 72 |
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| 73 | it 'should raise ArgumentError with -2 precision' do
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| 74 | lambda {
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| 75 | @dv_quantity.precision = -2
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| 76 | }.should raise_error ArgumentError
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| 77 | end
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| 78 | end
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