From fcd93d955e3b7fdb051d26bdfd6ac761ef366d43 Mon Sep 17 00:00:00 2001
From: Marwin Hochfelsner <50826859+hlfan@users.noreply.github.com>
Date: Mon, 9 Feb 2026 16:25:11 +0100
Subject: [PATCH] Add basic tests for MapLayers lib

---
 test/lib/map_layers_test.rb | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 test/lib/map_layers_test.rb

diff --git a/test/lib/map_layers_test.rb b/test/lib/map_layers_test.rb
new file mode 100644
index 000000000..51b91b125
--- /dev/null
+++ b/test/lib/map_layers_test.rb
@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class MapLayersTest < ActiveSupport::TestCase
+  def test_full_definitions_returns_well_formed_layers_collection
+    layers = MapLayers.full_definitions("config/layers.yml")
+
+    assert_kind_of Array, layers, "Expected full_definitions to return an array"
+    assert_operator layers.count, :>, 0, "Expected some layers available"
+
+    layer_properties = %w[layerId nameId code credit]
+
+    layers.each do |layer|
+      assert_kind_of Hash, layer, "Expected each layer to be a hash"
+      layer_properties.each do |key|
+        assert layer.key?(key), "Expected layer to have key '#{key}'"
+      end
+    end
+  end
+
+  def test_first_layer_is_standard_layer
+    layers = MapLayers.full_definitions("config/layers.yml")
+    first_layer = layers.first
+
+    assert_equal "standard", first_layer["nameId"], "Expected first layer to have nameId 'standard'"
+  end
+end
-- 
2.39.5