Update unit tests

service/lib/agama/product_reader.rb

@@ -49,7 +49,7 @@ def initialize(logger: nil)
     def load_products
       glob = File.join(default_path, "*.{yaml,yml}")
       Dir.glob(glob).each_with_object([]) do |path, result|
-        products = YAML.safe_load_file(path)
+        products = YAML.safe_load(File.read(path))
         products = [products] unless products.is_a?(Array)
         result.concat(products)
       end

service/test/agama/software/manager_test.rb

@@ -215,6 +215,7 @@
   describe "#probe" do
     before do
       subject.select_product("Tumbleweed")
+      allow(subject).to receive(:list_disks).and_return({})
     end
 
     it "creates a packages proposal" do
@@ -228,6 +229,21 @@
       subject.probe
     end
 
+    it "uses the offline medium if available" do
+      device = "/dev/sr1"
+      expect(subject).to receive(:list_disks).and_return({
+        "blockdevices" => [
+          {
+            "kname" => device,
+            "label" => "openSUSE-Tumbleweed-DVD-x86_64"
+          }
+        ]
+      })
+
+      expect(repositories).to receive(:add).with("hd:/?device=" + device)
+      subject.probe
+    end
+
     include_examples "software issues", "probe"
   end