Created
October 11, 2016 11:30
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describe '#convert_between_temperature_units' do | |
it 'converts from Kelvin' do | |
expect(convert_between_temperature_units(1.2, "K", "F")).to be_within(0.01).of(-457.51) | |
expect(convert_between_temperature_units(4.2, "K", "C")).to be_within(0.01).of(-268.95) | |
expect(convert_between_temperature_units(1, "K", "K")).to eq(1) | |
expect(convert_between_temperature_units(0, "K", "K")).to eq(0) | |
end | |
it 'converts from Celsius' do | |
expect(convert_between_temperature_units(0, 'C', 'K')).to be_within(0.0001).of(273.15) | |
expect(convert_between_temperature_units(1, 'C', 'F')).to be_within(0.0001).of(33.8) | |
expect(convert_between_temperature_units(1.2, "C", "F")).to be_within(0.01).of(34.16) | |
expect(convert_between_temperature_units(1.2, "C", "K")).to be_within(0.01).of(274.35) | |
expect(convert_between_temperature_units(1, "C", "C")).to eq(1) | |
expect(convert_between_temperature_units(0, "C", "C")).to eq(0) | |
end | |
it 'converts from Fahrenheit' do | |
expect(convert_between_temperature_units(1.2, "F", "C")).to be_within(0.01).of(-17.11) | |
expect(convert_between_temperature_units(4.2, "F", "K")).to be_within(0.01).of(257.70) | |
expect(convert_between_temperature_units(1, "F", "F")).to eq(1) | |
expect(convert_between_temperature_units(0, "F", "F")).to eq(0) | |
end | |
end | |
describe '#melting_point_of_substance' do | |
it 'knows the melting point of water' do | |
expect(melting_point_of_substance('water', 'C')).to be_within(0.01).of(0) | |
expect(melting_point_of_substance('water', 'K')).to be_within(0.01).of(273.15) | |
expect(melting_point_of_substance('water', 'F')).to eq(32) | |
end | |
it 'knows the melting point of ethanol' do | |
expect(melting_point_of_substance('ethanol', 'C')).to eq(-114) | |
expect(melting_point_of_substance('ethanol', 'K')).to be_within(0.01).of(159.15) | |
expect(melting_point_of_substance('ethanol', 'F')).to be_within(0.01).of(-173.2) | |
end | |
it 'knows the melting point of gold' do | |
expect(melting_point_of_substance('gold', 'C')).to eq(1064) | |
expect(melting_point_of_substance('gold', 'K')).to be_within(0.01).of(1337.15) | |
expect(melting_point_of_substance('gold', 'F')).to be_within(0.01).of(1947.2) | |
end | |
it 'knows the melting point of silver' do | |
expect(melting_point_of_substance('silver', 'C')).to eq(961.8) | |
expect(melting_point_of_substance('silver', 'K')).to be_within(0.01).of(1234.95) | |
expect(melting_point_of_substance('silver', 'F')).to be_within(0.01).of(1763.24) | |
end | |
it 'knows the melting point of copper' do | |
expect(melting_point_of_substance('copper', 'C')).to eq(1085) | |
expect(melting_point_of_substance('copper', 'K')).to be_within(0.01).of(1358.15) | |
expect(melting_point_of_substance('copper', 'F')).to be_within(0.01).of(1985) | |
end | |
end | |
describe '#boiling_point_of_substance' do | |
it 'knows the boiling point of water' do | |
expect(boiling_point_of_substance('water', 'C')).to be_within(0.01).of(100) | |
expect(boiling_point_of_substance('water', 'K')).to be_within(0.01).of(373.15) | |
expect(boiling_point_of_substance('water', 'F')).to eq(212) | |
end | |
it 'knows the boiling point of ethanol' do | |
expect(boiling_point_of_substance('ethanol', 'C')).to be_within(0.01).of(78.37) | |
expect(boiling_point_of_substance('ethanol', 'K')).to be_within(0.01).of(351.52) | |
expect(boiling_point_of_substance('ethanol', 'F')).to be_within(0.001).of(173.066) | |
end | |
it 'knows the boiling point of gold' do | |
expect(boiling_point_of_substance('gold', 'C')).to be_within(0.01).of(2700) | |
expect(boiling_point_of_substance('gold', 'K')).to be_within(0.01).of(2973.15) | |
expect(boiling_point_of_substance('gold', 'F')).to eq(4892) | |
end | |
it 'knows the boiling point of silver' do | |
expect(boiling_point_of_substance('silver', 'C')).to be_within(0.01).of(2162) | |
expect(boiling_point_of_substance('silver', 'K')).to be_within(0.01).of(2435.15) | |
expect(boiling_point_of_substance('silver', 'F')).to be_within(0.01).of(3923.6) | |
end | |
it 'knows the boiling point of copper' do | |
expect(boiling_point_of_substance('copper', 'C')).to be_within(0.01).of(2567) | |
expect(boiling_point_of_substance('copper', 'K')).to be_within(0.01).of(2840.15) | |
expect(boiling_point_of_substance('copper', 'F')).to be_within(0.01).of(4652.6) | |
end | |
end |
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