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require 'ruby2d'
RSpec.describe Ruby2D::Triangle do
describe '#new' do
it "creates a triangle with white color by default" do
triangle = Triangle.new(
320, 50,
540, 430,
100, 430
)
expect(triangle.color).to be_a(Ruby2D::Color)
expect(triangle.color.r).to eq(1)
expect(triangle.color.g).to eq(1)
expect(triangle.color.b).to eq(1)
expect(triangle.color.a).to eq(1)
end
it 'creates a new triangle with one color via string' do
triangle = Triangle.new(
320, 50,
540, 430,
100, 430,
"black"
)
expect(triangle.color).to be_a(Ruby2D::Color)
end
it "creates a new triangle with one color via array of numbers" do
triangle = Triangle.new(
320, 50,
540, 430,
100, 430,
[0.1, 0.3, 0.5, 0.7]
)
expect(triangle.color).to be_a(Ruby2D::Color)
end
it "creates a new triangle with 3 colors via array of 3 strings" do
triangle = Triangle.new(
320, 50,
540, 430,
100, 430,
["red", "green", "blue"]
)
expect(triangle.color).to be_a(Ruby2D::Color::Set)
end
it "creates a new triangle with 3 colors via array of 3 arrays of arrays of numbers" do
triangle = Triangle.new(
320, 50,
540, 430,
100, 430,
[[0.1, 0.3, 0.5, 0.7], [0.2, 0.4, 0.6, 0.8], [0.3, 0.5, 0.7, 0.9]]
)
expect(triangle.color).to be_a(Ruby2D::Color::Set)
end
it "throws an error when array of 2 strings is passed" do
expect do
Triangle.new(
320, 50,
540, 430,
100, 430,
["red", "green"]
)
end.to raise_error("Triangles require 3 colors, one for each vertex. 2 were given.")
end
it "throws an error when array of 4 strings is passed" do
expect do
Triangle.new(
320, 50,
540, 430,
100, 430,
["red", "green", "blue", "fuchsia"]
)
end.to raise_error("Triangles require 3 colors, one for each vertex. 4 were given.")
end
end
end
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