[gtksourceview] snippets: ensure final chunk is included in snippet output

[Christian Hergert <chergert src gnome org>]

commit a9a7f6b0c8a826c18164db4a5b8894f72e1df3ab
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jul 22 15:32:39 2022 -0700

    snippets: ensure final chunk is included in snippet output
    
    We need to flush out any pending snippet text when parsing from strings
    or we risk loosing the final chunk.
    
    Fixes #252

 gtksourceview/gtksourcesnippetbundle-parser.c |  2 ++
 testsuite/test-snippets.c                     | 32 +++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)
---
diff --git a/gtksourceview/gtksourcesnippetbundle-parser.c b/gtksourceview/gtksourcesnippetbundle-parser.c
index 69ddb06d..651f81c7 100644
--- a/gtksourceview/gtksourcesnippetbundle-parser.c
+++ b/gtksourceview/gtksourcesnippetbundle-parser.c
@@ -342,6 +342,8 @@ _gtk_source_snippet_bundle_parse_text (const gchar  *text,
                }
        }
 
+       flush_chunk (&parser);
+
        goto finish;
 
 handle_error:
diff --git a/testsuite/test-snippets.c b/testsuite/test-snippets.c
index d84cb7bb..f93bda6c 100644
--- a/testsuite/test-snippets.c
+++ b/testsuite/test-snippets.c
@@ -114,9 +114,40 @@ test_snippet_parse (void)
        g_assert_cmpstr ("", ==, gtk_source_snippet_chunk_get_text (chunk));
 
        chunk = gtk_source_snippet_get_nth_chunk (snippet, 3);
+       g_assert_nonnull (chunk);
+       g_assert_cmpint (0, ==, gtk_source_snippet_chunk_get_focus_position (chunk));
+       g_assert_cmpstr ("", ==, gtk_source_snippet_chunk_get_spec (chunk));
+
+       g_assert_finalize_object (snippet);
+}
+
+static void
+test_snippet_parse_issue_252 (void)
+{
+       GtkSourceSnippet *snippet;
+       GtkSourceSnippetChunk *chunk;
+       GError *error = NULL;
+
+       snippet = gtk_source_snippet_new_parsed ("a\n$0\nb", &error);
+       g_assert_no_error (error);
+       g_assert_nonnull (snippet);
+
+       g_assert_cmpint (3, ==, gtk_source_snippet_get_n_chunks (snippet));
+
+       chunk = gtk_source_snippet_get_nth_chunk (snippet, 0);
+       g_assert_nonnull (chunk);
+       g_assert_cmpint (-1, ==, gtk_source_snippet_chunk_get_focus_position (chunk));
+       g_assert_cmpstr ("a\n", ==, gtk_source_snippet_chunk_get_spec (chunk));
+
+       chunk = gtk_source_snippet_get_nth_chunk (snippet, 1);
+       g_assert_nonnull (chunk);
        g_assert_cmpint (0, ==, gtk_source_snippet_chunk_get_focus_position (chunk));
        g_assert_cmpstr ("", ==, gtk_source_snippet_chunk_get_spec (chunk));
+
+       chunk = gtk_source_snippet_get_nth_chunk (snippet, 2);
        g_assert_nonnull (chunk);
+       g_assert_cmpint (-1, ==, gtk_source_snippet_chunk_get_focus_position (chunk));
+       g_assert_cmpstr ("\nb", ==, gtk_source_snippet_chunk_get_spec (chunk));
 
        g_assert_finalize_object (snippet);
 }
@@ -133,6 +164,7 @@ main (gint argc,
 
        g_test_add_func ("/SourceView/Snippets/parse-bundle", test_simple);
        g_test_add_func ("/SourceView/Snippets/new-parsed", test_snippet_parse);
+       g_test_add_func ("/SourceView/Snippets/$0-in-middle", test_snippet_parse_issue_252);
        g_test_add_func ("/SourceView/Snippets/snippet-fetching", test_snippet_fetching);
        ret = g_test_run ();