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
      t = Text.new("hello")
      expect(t.font).to eq(Font.default)
    end
  end

  describe "#text=" do
    it "maps Time to string" do
      t = Text.new("hello", font: "test/media/bitstream_vera/vera.ttf")
      t.text = Time.new(1, 1, 1, 1, 1, 1, 1)
      expect(t.text).to eq("0001-01-01 01:01:01 +0000")
    end

    it "maps Number to string" do
      t = Text.new("hello", font: "test/media/bitstream_vera/vera.ttf")
      t.text = 0
      expect(t.text).to eq("0")
    end
  end

  describe "#width" do
    it "is known after creation" do
      t = Text.new("Hello Ruby!", font: "test/media/bitstream_vera/vera.ttf")
      expect(t.width).to be_between(110, 120)
    end

    it "is known after updating" do
      t = Text.new("hello", font: "test/media/bitstream_vera/vera.ttf")
      t.text = "Hello!"
      expect(t.width).to eq(59)
    end
  end

  describe "#height" do
    it "is known after creation" do
      t = Text.new("hello", font: "test/media/bitstream_vera/vera.ttf")
      expect(t.height).to eq(24)
    end

    it "is known after updating" do
      t = Text.new("hello", font: "test/media/bitstream_vera/vera.ttf")
      t.text = "Good morning world!"
      expect(t.height).to eq(24)
    end
  end

  describe "#contains?" do
    it "returns true if point is inside the text" do
      t = Text.new("hello", font: "test/media/bitstream_vera/vera.ttf")
      t.text = "Hello world!"
      expect(t.contains?(t.width / 2, t.height / 2)).to be true
    end

    it "returns false if point is outside the text" do
      t = Text.new("hello", font: "test/media/bitstream_vera/vera.ttf")
      t.text = "Hello world!"
      expect(t.contains?(  - t.width / 2,     t.height / 2)).to be false
      expect(t.contains?(    t.width / 2,   - t.height / 2)).to be false
      expect(t.contains?(3 * t.width / 2,     t.height / 2)).to be false
      expect(t.contains?(    t.width / 2, 3 * t.height / 2)).to be false
    end
  end

end