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require 'ruby2d'
RSpec.describe Ruby2D::Text do
describe "#new" do
it "raises exception if font file doesn't exist" do
expect { Text.new('hello', font: 'bad_font.ttf') }.to raise_error(Ruby2D::Error)
end
it "uses the system default font if one is not provided" do
txt = Text.new('hello')
expect(txt.font).to eq(Font.default)
end
it "creates text with a white filter by default" do
txt = Text.new('hello')
expect(txt.color).to be_a(Ruby2D::Color)
expect(txt.color.r).to eq(1)
expect(txt.color.g).to eq(1)
expect(txt.color.b).to eq(1)
expect(txt.color.a).to eq(1)
end
it "creates an image with options" do
txt = Text.new(
'hello', font: 'test/media/bitstream_vera/vera.ttf',
x: 10, y: 20, z: 30,
size: 40, rotate: 50,
color: 'gray', opacity: 0.5
)
expect(txt.text).to eq('hello')
expect(txt.x).to eq(10)
expect(txt.y).to eq(20)
expect(txt.z).to eq(30)
expect(txt.size).to eq(40)
expect(txt.rotate).to eq(50)
expect(txt.color.r).to eq(2/3.0)
expect(txt.opacity).to eq(0.5)
end
end
describe "attributes" do
it "can be set and read" do
txt = Text.new('hello')
txt.x = 10
txt.y = 20
txt.z = 30
txt.size = 40
txt.rotate = 50
txt.color = 'gray'
txt.opacity = 0.5
expect(txt.x).to eq(10)
expect(txt.y).to eq(20)
expect(txt.z).to eq(30)
expect(txt.size).to eq(40)
expect(txt.rotate).to eq(50)
expect(txt.color.r).to eq(2/3.0)
expect(txt.opacity).to eq(0.5)
end
end
describe "#text=" do
it "maps Time to string" do
txt = Text.new('hello', font: 'test/media/bitstream_vera/vera.ttf')
txt.text = Time.new(1, 1, 1, 1, 1, 1, 1)
expect(txt.text).to eq('0001-01-01 01:01:01 +0000')
end
it "maps Number to string" do
txt = Text.new('hello', font: 'test/media/bitstream_vera/vera.ttf')
txt.text = 0
expect(txt.text).to eq('0')
end
end
describe "#width" do
it "is known after creation" do
txt = Text.new('Hello Ruby!', font: 'test/media/bitstream_vera/vera.ttf')
expect(txt.width).to be_between(110, 120)
end
it "is known after updating" do
txt = Text.new('hello', font: 'test/media/bitstream_vera/vera.ttf')
txt.text = 'Hello!'
expect(txt.width).to eq(59)
end
end
describe "#height" do
it "is known after creation" do
txt = Text.new('hello', font: 'test/media/bitstream_vera/vera.ttf')
expect(txt.height).to eq(24)
end
it "is known after updating" do
txt = Text.new('hello', font: 'test/media/bitstream_vera/vera.ttf')
txt.text = 'Good morning world!'
expect(txt.height).to eq(24)
end
end
describe "#contains?" do
it "returns true if point is inside the text" do
txt = Text.new('hello', font: 'test/media/bitstream_vera/vera.ttf')
txt.text = 'Hello world!'
expect(txt.contains?(txt.width / 2, txt.height / 2)).to be true
end
it "returns false if point is outside the text" do
txt = Text.new('hello', font: 'test/media/bitstream_vera/vera.ttf')
txt.text = 'Hello world!'
expect(txt.contains?( - txt.width / 2, txt.height / 2)).to be false
expect(txt.contains?( txt.width / 2, - txt.height / 2)).to be false
expect(txt.contains?(3 * txt.width / 2, txt.height / 2)).to be false
expect(txt.contains?( txt.width / 2, 3 * txt.height / 2)).to be false
end
end
end
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