Initial parametric Feather case generator

test/config_test.rb

@@ -0,0 +1,90 @@
+# frozen_string_literal: true
+
+require_relative "test_helper"
+
+class ConfigTest < Minitest::Test
+  def config
+    FeatherCaseWizard::Config.create(name: "Bench GPS", slug: "bench-gps")
+  end
+
+  def test_default_case_has_expected_parts_and_dimensions
+    assert_equal %w[body lid], config.printable_parts
+    assert_in_delta 60.8, config.dimensions["length"], 0.01
+    assert_in_delta 41.66, config.dimensions["width"], 0.01
+    assert_equal ["3mf"], config.outputs["formats"]
+  end
+
+  def test_oled_buttons_and_selected_coupons_are_printable
+    subject = config
+    subject.parameters["top_profile"] = "oled128x64"
+    subject.parameters["button_a"] = false
+    subject.parameters["button_b"] = true
+    subject.outputs["coupons"] = %w[fit_coupon]
+
+    assert_equal %w[body lid buttons fit_coupon], subject.printable_parts
+  end
+
+  def test_wall_local_cutouts_map_to_model_coordinates
+    subject = config
+    length = subject.dimensions["length"]
+    width = subject.dimensions["width"]
+    subject.data["cutouts"] = [
+      cutout("front", 12.0),
+      cutout("rear", 13.0),
+      cutout("left", 14.0),
+      cutout("right", 15.0)
+    ]
+    result = subject.scad_cutouts
+
+    assert_in_delta width - 12.0, result[0][2], 0.001
+    assert_in_delta 13.0, result[1][2], 0.001
+    assert_in_delta 14.0, result[2][2], 0.001
+    assert_in_delta length - 15.0, result[3][2], 0.001
+  end
+
+  def test_cutout_cannot_intersect_floor
+    subject = config
+    subject.data["cutouts"] = [cutout("rear", 12.0).merge("z" => 2.0)]
+
+    error = assert_raises(FeatherCaseWizard::ConfigError) { subject.validate! }
+    assert_match(/floor/, error.message)
+  end
+
+  def test_yaml_round_trip_preserves_resolved_cutouts
+    subject = config
+    subject.data["cutouts"] = [cutout("left", 20.0)]
+
+    Dir.mktmpdir do |directory|
+      path = File.join(directory, "case.yml")
+      File.write(path, subject.to_yaml)
+      loaded = FeatherCaseWizard::Config.load(path)
+      assert_equal subject.data["cutouts"], loaded.data["cutouts"]
+      assert_equal subject.scad_cutouts, loaded.data.dig("resolved", "extra_cutouts")
+    end
+  end
+
+  def test_unsafe_yaml_is_rejected
+    Dir.mktmpdir do |directory|
+      path = File.join(directory, "case.yml")
+      File.write(path, "--- !ruby/object:Object {}\n")
+      assert_raises(FeatherCaseWizard::ConfigError) do
+        FeatherCaseWizard::Config.load(path)
+      end
+    end
+  end
+
+  private
+
+  def cutout(face, horizontal)
+    {
+      "name" => "#{face}-cable",
+      "face" => face,
+      "shape" => "roundrect",
+      "horizontal" => horizontal,
+      "z" => 12.0,
+      "width" => 6.0,
+      "height" => 4.0,
+      "radius" => 1.0
+    }
+  end
+end