implement Color#opacity=

1 files changed, 92 insertions, 0 deletions

diff --git a/test/quad_spec.rb b/test/quad_spec.rb
new file mode 100644
index 0000000..58f2dfd
--- /dev/null
+++ b/test/quad_spec.rb
@@ -0,0 +1,92 @@
+require 'ruby2d'
+
+RSpec.describe Ruby2D::Quad do
+  describe '#new' do
+    it "creates a quad with white color by default" do
+      quad = Quad.new(
+        300, 200,
+        350, 200,
+        300, 250,
+        250, 250
+      )
+
+      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(
+        300, 200,
+        350, 200,
+        300, 250,
+        250, 250,
+        "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(
+        300, 200,
+        350, 200,
+        300, 250,
+        250, 250,
+        [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(
+        300, 200,
+        350, 200,
+        300, 250,
+        250, 250,
+        ["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(
+        300, 200,
+        350, 200,
+        300, 250,
+        250, 250,
+        [[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(
+          300, 200,
+          350, 200,
+          300, 250,
+          250, 250,
+          ["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(
+          300, 200,
+          350, 200,
+          300, 250,
+          250, 250,
+          ["red", "green", "blue", "black", "fuchsia"]
+        )
+      end.to raise_error("Quads require 4 colors, one for each vertex. 5 were given.")
+    end
+  end
+end