refactor: new spec for testing, and ci action

Author: GalactHD

.github/workflows/ci.yml

@@ -0,0 +1,18 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+    branches: [master]
+    tags-ignore:
+      - '*'
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download source
+        uses: actions/checkout@v2
+      - name: Install Crystal
+        uses: crystal-lang/install-crystal@v1
+      - name: Run tests
+        run: crystal spec

spec/gradientty_spec.cr

@@ -2,28 +2,33 @@ require "spec"
 require "../src/gradientty"
 
 describe "Gradientty" do
-  it "prints predefined gradients correctly" do
-    custom = Gradientty.gradient(["#ff5f6d", "#ffc371"])
+  it "generates ANSI-colored strings for predefined gradients" do
+    test_str = "Gradient Test"
+
+    gradients = {
+      "rainbow" => Gradientty.rainbow(test_str),
+      "crystal" => Gradientty.crystal(test_str),
+      "pastel"  => Gradientty.pastel(test_str),
+      "vice"    => Gradientty.vice(test_str),
+    }
 
-    output_0 = Gradientty.rainbow("A test for testing string with gradient.")
-    output_1 = Gradientty.crystal("A test for testing string with gradient.")
-    output_2 = Gradientty.pastel("A test for testing string with gradient.")
-    output_3 = Gradientty.vice("A test for testing string with gradient.")
-    output_4 = custom.call("CUSTOM")
-    output_5 = custom.multiline("LINE1\nLINE2")
+    gradients.each do |name, output|
+      output.should_not eq ""
+      # Check that ANSI escape codes exist
+      output.should match(/\e\[38;2;\d+;\d+;\d+m/)
+    end
+  end
+
+  it "generates ANSI-colored strings for custom gradients" do
+    custom = Gradientty.gradient(["#ff5f6d", "#ffc371"])
+    output_1 = custom.call("CUSTOM")
+    output_2 = custom.multiline("LINE1\nLINE2", true)
 
-    output_0.should_not eq ""
     output_1.should_not eq ""
     output_2.should_not eq ""
-    output_3.should_not eq ""
-    output_4.should_not eq ""
-    output_5.should_not eq ""
 
-    puts output_0
-    puts output_1
-    puts output_2
-    puts output_3
-    puts output_4
-    puts output_5
+    # Check that ANSI escape codes exist
+    output_1.should match(/\e\[38;2;\d+;\d+;\d+m/)
+    output_2.should match(/\e\[38;2;\d+;\d+;\d+m/)
   end
 end