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require 'ruby2d'
RSpec.describe Ruby2D::Quad do
describe "#new" do
it "creates a quad with white color by default" do
quad = Quad.new
expect(quad.color).to be_a(Ruby2D::Color)
expect(quad.color.r).to eq(1)
expect(quad.color.g).to eq(1)
expect(quad.color.b).to eq(1)
expect(quad.color.a).to eq(1)
end
it "creates a new quad with one color via string" do
quad = Quad.new(color: 'red')
expect(quad.color).to be_a(Ruby2D::Color)
end
it "creates a new triangle with one color via array of numbers" do
quad = Quad.new(color: [0.1, 0.3, 0.5, 0.7])
expect(quad.color).to be_a(Ruby2D::Color)
end
it "creates a new quad with 4 colors via array of 4 strings" do
quad = Quad.new(color: ['red', 'green', 'blue', 'black'])
expect(quad.color).to be_a(Ruby2D::Color::Set)
end
it "creates a new quad with 4 colors via array of 4 arrays of arrays of numbers" do
quad = Quad.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(quad.color).to be_a(Ruby2D::Color::Set)
end
it "throws an error when array of 3 strings is passed" do
expect do
Quad.new(color: ['red', 'green', 'blue'])
end.to raise_error("Quads require 4 colors, one for each vertex. 3 were given.")
end
it "throws an error when array of 5 strings is passed" do
expect do
Quad.new(color: ['red', 'green', 'blue', 'black', 'fuchsia'])
end.to raise_error("Quads require 4 colors, one for each vertex. 5 were given.")
end
end
describe "#contains?" do
quad = Quad.new(
x1: -25, y1: 0,
x2: 0, y2: -25,
x3: 25, y3: 0,
x4: 0, y4: 25
)
it "returns true if point is inside the quad" do
expect(quad.contains?(0 , 0)).to be true
expect(quad.contains?(25, 0)).to be true
end
it "returns false if point is outside the quad" do
expect(quad.contains?(-26, 0)).to be false
expect(quad.contains?( 0, 26)).to be false
end
end
end
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