97 lines
2.7 KiB
Ruby
97 lines
2.7 KiB
Ruby
module Gnucash
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describe Value do
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describe '.zero' do
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it 'creates a Value object with value 0' do
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Value.zero.val.should == 0
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end
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end
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it "raises an error when an unexpected string is given" do
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expect { Value.new("1234") }.to raise_error /Unexpected value string/
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end
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it "raises an error when an unexpected type is given" do
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expect { Value.new(Object.new) }.to raise_error /Unexpected value type/
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end
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it "allows construction from a string" do
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Value.new("5678/100").val.should == 5678
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end
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it "converts the value to the expected string representation" do
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Value.new("5678/100").to_s.should == "56.78"
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Value.new("1000231455/100").to_s.should == "10002314.55"
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end
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it "allows adding two value objects" do
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a = Value.new("1234/100")
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b = Value.new("2345/100")
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c = a + b
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c.to_s.should == "35.79"
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end
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it "allows adding a Value object to a Numeric" do
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a = Value.new("1234/100")
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b = 15
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c = a + b
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c.should == 27.34
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end
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it "allows subtracting two value objects" do
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a = Value.new("-12300/100")
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b = Value.new("99/100")
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c = a - b
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c.to_s.should == "-123.99"
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end
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it "allows subtracting a Numeric from a Value object" do
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a = Value.new("890/100")
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b = 7.8
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c = a - b
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c.should == 1.1
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end
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it "allows multiplying a Value by a Numeric" do
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a = Value.new("100/100")
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b = 12
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c = a * b
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c.should == 12.00
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end
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it "allows dividing a Value by a Numeric" do
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a = Value.new("150000/100")
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b = 150
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c = a / b
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c.should == 10.0
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end
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it "formats the number with two decimal places" do
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Value.new("1400/100").to_s.should == "14.00"
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end
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it "supports comparisons between two Value objects" do
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Value.new("1234/100").should == Value.new(1234)
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(Value.new("89/100") < Value.new("100/100")).should be_true
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(Value.new("1234/100") > Value.new("222/100")).should be_true
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end
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context "errors" do
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it "raises an error when attempting to add an unknown object type" do
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expect { Value.new(33) + nil }.to raise_error /Unexpected argument/i
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end
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it "raises an error when attempting to subtract an unknown object type" do
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expect { Value.new(33) - nil }.to raise_error /Unexpected argument/i
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end
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it "raises an error when attempting to multiply by an unknown object type" do
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expect { Value.new(33) * nil }.to raise_error /Unexpected argument/i
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end
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it "raises an error when attempting to divide by an unknown object type" do
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expect { Value.new(33) / nil }.to raise_error /Unexpected argument/i
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end
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end
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end
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end
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