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require 'ruby2d'
RSpec.describe Ruby2D::Rectangle do
describe "#new" do
it "creates a white rectangle by default" do
rectangle = Rectangle.new
expect(rectangle.color).to be_a(Ruby2D::Color)
expect(rectangle.color.r).to eq(1)
expect(rectangle.color.g).to eq(1)
expect(rectangle.color.b).to eq(1)
expect(rectangle.color.a).to eq(1)
end
it "creates a rectangle with options" do
rectangle = Rectangle.new(
x: 10, y: 20, z: 30,
width: 40, height: 50,
color: 'gray', opacity: 0.5
)
expect(rectangle.x).to eq(10)
expect(rectangle.y).to eq(20)
expect(rectangle.z).to eq(30)
expect(rectangle.width).to eq(40)
expect(rectangle.height).to eq(50)
expect(rectangle.color.r).to eq(2/3.0)
expect(rectangle.opacity).to eq(0.5)
end
it "creates a new rectangle with one color via string" do
rectangle = Rectangle.new(color: 'red')
expect(rectangle.color).to be_a(Ruby2D::Color)
end
it "creates a new rectangle with one color via array of numbers" do
rectangle = Rectangle.new(color: [0.1, 0.3, 0.5, 0.7])
expect(rectangle.color).to be_a(Ruby2D::Color)
end
it "creates a new rectangle with 4 colors via array of 4 strings" do
rectangle = Rectangle.new(color: ['red', 'green', 'blue', 'black'])
expect(rectangle.color).to be_a(Ruby2D::Color::Set)
end
it "creates a new rectangle with 4 colors via array of 4 arrays of arrays of numbers" do
rectangle = Rectangle.new(
color: [
[0.1, 0.3, 0.5, 0.7],
[0.2, 0.4, 0.6, 0.8],
[0.3, 0.5, 0.7, 0.9],
[0.4, 0.6, 0.8, 1.0]
]
)
expect(rectangle.color).to be_a(Ruby2D::Color::Set)
end
it "throws an error when array of 3 strings is passed" do
expect do
Rectangle.new(color: ['red', 'green', 'blue'])
end.to raise_error("`Ruby2D::Rectangle` requires 4 colors, one for each vertex. 3 were given.")
end
it "throws an error when array of 5 strings is passed" do
expect do
Rectangle.new(color: ['red', 'green', 'blue', 'black', 'fuchsia'])
end.to raise_error("`Ruby2D::Rectangle` requires 4 colors, one for each vertex. 5 were given.")
end
end
describe "attributes" do
it "can be set and read" do
rectangle = Rectangle.new
rectangle.x = 10
rectangle.y = 20
rectangle.z = 30
rectangle.width = 40
rectangle.height = 50
rectangle.color = 'gray'
rectangle.opacity = 0.5
expect(rectangle.x).to eq(10)
expect(rectangle.y).to eq(20)
expect(rectangle.z).to eq(30)
expect(rectangle.width).to eq(40)
expect(rectangle.height).to eq(50)
expect(rectangle.color.r).to eq(2/3.0)
expect(rectangle.opacity).to eq(0.5)
end
end
end
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