tweak the fit of the parts

test/config_test.rb

@@ -80,6 +80,35 @@ class ConfigTest < Minitest::Test
     assert_in_delta 95.6, subject.dimensions["length"], 0.01
   end
 
+  def test_insert_defaults_match_selected_hardware
+    parameters = config.parameters
+
+    assert_in_delta 4.0, parameters["m25_insert_length"], 0.001
+    assert_in_delta 3.1, parameters["m25_insert_hole_diameter"], 0.001
+    assert_in_delta 3.5, parameters["m25_insert_outer_diameter"], 0.001
+    assert_in_delta 5.0, parameters["tripod_insert_length"], 0.001
+    assert_in_delta 7.2, parameters["tripod_insert_hole_diameter"], 0.001
+    assert_in_delta 8.0, parameters["tripod_insert_outer_diameter"], 0.001
+  end
+
+  def test_tripod_floor_tracks_insert_length
+    subject = config
+    subject.parameters["tripod_insert_enabled"] = true
+
+    assert_in_delta 7.0, subject.dimensions["floor"], 0.001
+  end
+
+  def test_insert_coupon_uses_finished_pilot_ranges
+    source = FeatherCaseWizard::MODEL_SOURCE.read
+
+    assert_includes source,
+                    "m25_coupon_steps = [-0.15, -0.075, 0, 0.075, 0.15];"
+    assert_includes source,
+                    "tripod_coupon_steps = [-0.3, -0.15, 0, 0.15, 0.3];"
+    assert_includes source, "bore_d = diameter;"
+    refute_includes source, "bore_d = diameter + hole_compensation;"
+  end
+
   def test_oled_buttons_and_selected_coupons_are_printable
     subject = config
     subject.parameters["top_profile"] = "oled128x64"
@@ -90,6 +119,71 @@ class ConfigTest < Minitest::Test
     assert_equal %w[body lid buttons fit_coupon], subject.printable_parts
   end
 
+  def test_combined_battery_and_tripod_case_adds_partition_clearance
+    subject = config
+    subject.parameters["battery_enabled"] = true
+    subject.parameters["tripod_insert_enabled"] = true
+
+    assert_in_delta 88.6, subject.dimensions["length"], 0.01
+    assert_in_delta 59.06, subject.dimensions["width"], 0.01
+    assert_in_delta 31.25, subject.dimensions["height"], 0.01
+  end
+
+  def test_legacy_round_switch_fields_migrate_to_rocker_defaults
+    data = config.data
+    data["parameters"]["switch_hole_diameter"] = 12.0
+    data["parameters"]["switch_body_length"] = 24.0
+
+    subject = FeatherCaseWizard::Config.new(data)
+
+    refute subject.parameters.key?("switch_hole_diameter")
+    refute subject.parameters.key?("switch_body_length")
+    assert_equal [12.9, 19.4], subject.parameters["rocker_cutout_size"]
+    assert_equal [15.0, 21.0, 21.0], subject.parameters["rocker_body_size"]
+  end
+
+  def test_battery_partition_requires_three_06_mm_lines
+    subject = config
+    subject.parameters["battery_partition_thickness"] = 1.19
+
+    error = assert_raises(FeatherCaseWizard::ConfigError) { subject.validate! }
+    assert_match(/battery_partition_thickness/, error.message)
+  end
+
+  def test_insert_entry_cannot_be_smaller_than_pilot
+    subject = config
+    subject.parameters["m25_insert_outer_diameter"] = 3.0
+
+    error = assert_raises(FeatherCaseWizard::ConfigError) { subject.validate! }
+    assert_match(/m25_insert_outer_diameter/, error.message)
+  end
+
+  def test_lid_artwork_adds_base_and_accent_parts
+    subject = config
+    subject.parameters["lid_label"] = "GPS"
+    subject.parameters["lid_logo_enabled"] = true
+
+    assert subject.lid_artwork?
+    assert_equal %w[body lid lid_base lid_accent], subject.printable_parts
+  end
+
+  def test_lid_artwork_rejects_oled_profile
+    subject = config
+    subject.parameters["top_profile"] = "oled128x64"
+    subject.parameters["lid_label"] = "OLED"
+
+    error = assert_raises(FeatherCaseWizard::ConfigError) { subject.validate! }
+    assert_match(/not supported with the OLED profile/, error.message)
+  end
+
+  def test_lid_artwork_orientation_is_named
+    subject = config
+    subject.parameters["lid_art_orientation"] = "diagonal"
+
+    error = assert_raises(FeatherCaseWizard::ConfigError) { subject.validate! }
+    assert_match(/orientation/, error.message)
+  end
+
   def test_wall_local_cutouts_map_to_model_coordinates
     subject = config
     length = subject.dimensions["length"]