sourcepos: failing footnotes test

src/tests/footnotes.rs

@@ -145,3 +145,36 @@ fn footnote_with_superscript() {
         ),
     );
 }
+
+#[test]
+fn sourcepos() {
+    assert_ast_match!(
+        [extension.footnotes],
+        "Here is a footnote reference.[^1]\n"
+        "\n"
+        "Here is a longer footnote reference.[^ref]\n"
+        "\n"
+        "[^1]: Here is the footnote.\n"
+        "[^ref]: Here is another footnote.\n",
+        (document (1:1-6:33) [
+            (paragraph (1:1-1:33) [
+                (text (1:1-1:29) "Here is a footnote reference.")
+                (footnote_reference (1:30-1:33))
+            ])
+            (paragraph (3:1-3:42) [
+                (text (3:1-3:36) "Here is a longer footnote reference.")
+                (footnote_reference (3:37-3:42))
+            ])
+            (footnote_definition (5:1-5:27) [
+                (paragraph (5:7-5:27) [
+                    (text (5:7-5:27) "Here is the footnote.")
+                ])
+            ])
+            (footnote_definition (6:1-6:33) [
+                (paragraph (6:9-6:33) [
+                    (text (6:9-6:33) "Here is another footnote.")
+                ])
+            ])
+        ])
+    );
+}