Add support to lazy options

DataDog · Oct 16, 2017 · 59d59f3 · 59d59f3
1 parent 0ce3796
commit 59d59f3
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Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/lib/ddtrace/configuration/proxy.rb b/lib/ddtrace/configuration/proxy.rb
@@ -7,7 +7,11 @@ def initialize(integration)
       end
 
       def [](param)
-        @integration.get_option(param)
+        value = @integration.get_option(param)
+
+        return value.call if value.respond_to?(:call)
+
+        value
       end
 
       def []=(param, value)

diff --git a/test/configuration_test.rb b/test/configuration_test.rb
@@ -50,6 +50,17 @@ def test_invalid_integration
       end
     end
 
+    def test_lazy_option
+      integration = Module.new do
+        include Contrib::Base
+        option :option1, default: -> { 1 + 1 }
+      end
+
+      @registry.add(:example, integration)
+
+      assert_equal(2, @configuration[:example][:option1])
+    end
+
     def test_hash_coercion
       integration = Module.new do
         include Contrib::Base