+}
+
+# Set up test directory, run file creations.
+expected_files_dir="test/test_files"
+generated_files_dir="test/test_dir"
+rm -rf "$generated_files_dir"
+./add_dir.sh "$generated_files_dir"
+working_dir=$(pwd)
+cd "$generated_files_dir"
+redo
+cp "$working_dir/$expected_files_dir"/te\"\;st.md .
+redo
+cp "$working_dir/$expected_files_dir"/bar\ baz.md .
+redo
+cp "$working_dir/$expected_files_dir"/foo.rst .
+cp "$working_dir/$expected_files_dir"/foo.links .
+redo
+
+# Test file modification tracking.
+update_datetime_start=$(cat "metadata/bar baz.feed_snippet" | grep '<updated>')
+sleep 1
+sed -i '2d' bar\ baz.md
+redo
+update_datetime_after_invisible_change=$(cat "metadata/bar baz.feed_snippet" | grep '<updated>')
+printf "== testing \"bar baz\"' update tag remaining unchanged with invisible source file change ==\n"
+if [ "$update_datetime_start" = "$update_datetime_after_invisible_change" ]; then
+ echo "== test SUCCESS =="
+else
+ echo "== test FAILURE =="
+fi
+sleep 1
+sed -i '2d' bar\ baz.md
+redo
+update_datetime_after_visible_change=$(cat "metadata/bar baz.feed_snippet" | grep '<updated>')
+printf "== testing \"bar baz\"' update tag changing with visible source file change ==\n"
+if [ "$update_datetime_start" = "$update_datetime_after_visible_change" ]; then
+ echo "== test FAILURE =="
+else
+ echo "== test SUCCESS =="
+fi
+cp "$working_dir/$expected_files_dir"/bar\ baz.md .
+redo
+
+# Compare metadata files.
+cd "$working_dir"
+blog_meta_file_test "$generated_files_dir""/metadata/automatic_metadata"
+for file in "$expected_files_dir"/metadata/*; do
+ basename=$(basename "$file")
+ cmp_file="$generated_files_dir/metadata/$basename"
+ diff_test "$file" "$cmp_file"
+done
+
+# Compare generated HTML files. Ignore variable dates.
+for file in "$expected_files_dir"/*.html.ignoring; do
+ basename=$(basename "$file")
+ cmp_file="$generated_files_dir/${basename%.ignoring}"
+ if [ ! "$file" = "$expected_files_dir""/index.html.ignoring" ]; then
+ article_meta_file_test "${generated_files_dir}/metadata/${basename%.html.ignoring}.automatic_metadata"
+ fi
+ generated_file="$cmp_file".ignoring
+ cat "$cmp_file" | \
+ sed 's/[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}/IGNORE/g' \
+ > "$generated_file"
+ diff_test "$file" "$generated_file"