[gtk-doc] scan: add tests for internal struct/union.

[Stefan Sauer <stefkost src gnome org>]

commit 40cab7c1d6d16464080792db002350a13c88ebb9
Author: Stefan Sauer <ensonic users sf net>
Date:   Sun Dec 9 19:52:04 2018 +0100

    scan: add tests for internal struct/union.

 tests/scan.py | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/tests/scan.py b/tests/scan.py
index 4691df4..8260b0f 100644
--- a/tests/scan.py
+++ b/tests/scan.py
@@ -327,6 +327,11 @@ class ScanHeaderContentStructs(ScanHeaderContentTestCase):
             header.splitlines(keepends=True))
         self.assertDecl('data', header, slist)
 
+    def test_IgnoresInternalStruct(self):
+        header = 'struct _internal *x;'
+        slist, doc_comments = self.scanHeaderContent([header])
+        self.assertNoDeclFound(slist)
+
 
 class ScanHeaderContentUnions(ScanHeaderContentTestCase):
     """Test parsing of union declarations."""
@@ -357,6 +362,11 @@ class ScanHeaderContentUnions(ScanHeaderContentTestCase):
             header.splitlines(keepends=True))
         self.assertDecl('Data', header, slist)
 
+    def test_IgnoresInternalUnion(self):
+        header = 'union _internal *x;'
+        slist, doc_comments = self.scanHeaderContent([header])
+        self.assertNoDeclFound(slist)
+
 
 # USER FUNCTION (aka function pointer types)
 class ScanHeaderContentUserFunction(ScanHeaderContentTestCase):