Wrap the libopenmpt module metadata functions.

hainesr · Aug 25, 2018 · 0c8f3aa · 0c8f3aa
1 parent a9ba2dd
commit 0c8f3aa
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diff --git a/lib/ffi/openmpt/api.rb b/lib/ffi/openmpt/api.rb
@@ -78,6 +78,9 @@ module API
 
       # Informational/error module calls
       attach_function :openmpt_module_get_duration_seconds, [:pointer], :double
+      attach_function :openmpt_module_get_metadata_keys, [:pointer], :pointer
+      attach_function :openmpt_module_get_metadata,
+                      [:pointer, :string], :pointer
       attach_function :openmpt_module_error_get_last, [:pointer], :int
       attach_function :openmpt_module_error_set_last, [:pointer, :int], :void
       attach_function :openmpt_module_error_get_last_message,

diff --git a/test/openmpt_api_test.rb b/test/openmpt_api_test.rb
@@ -111,6 +111,23 @@ def test_module_get_duration
     end
   end
 
+  def test_module_metadata
+    module_test(MOD_LAST_SUN) do |mod|
+      keys = openmpt_module_get_metadata_keys(mod)
+      refute_equal keys.read_string, ''
+      assert keys.read_string.include?(';')
+      openmpt_free_string(keys)
+
+      data = openmpt_module_get_metadata(mod, 'type')
+      assert_equal data.read_string, 'mod'
+      openmpt_free_string(data)
+
+      data = openmpt_module_get_metadata(mod, 'xxxx')
+      assert_equal data.read_string, ''
+      openmpt_free_string(data)
+    end
+  end
+
   def test_get_set_module_errors
     module_test(MOD_LAST_SUN) do |mod|
       errno = openmpt_module_error_get_last(mod)