1 files changed, 30 insertions, 0 deletions
diff --git a/grammar/src/tests/mod.rs b/grammar/src/tests/mod.rs
new file mode 100644
index 0000000..55eedff
--- /dev/null
+++ b/grammar/src/tests/mod.rs
@@ -0,0 +1,30 @@
+#[cfg(test)]
+mod test_grammar_display {
+    use crate::test_grammar_helper::new_grammar;
+
+    #[test]
+    fn test_display() -> Result<(), Box<dyn std::error::Error>> {
+        new_grammar().map(|g| println!("{g}"))
+    }
+}
+
+#[cfg(test)]
+mod test_grammar_firsts {
+    use crate::test_grammar_helper::new_grammar;
+    use std::io::Write;
+
+    #[test]
+    fn test_firsts() -> Result<(), Box<dyn std::error::Error>> {
+        let mut grammar = new_grammar()?;
+
+        grammar.compute_firsts()?;
+
+        let mut lock = std::io::stdout().lock();
+
+        writeln!(lock, "grammar firsts: {:?}", grammar.firsts)?;
+        writeln!(lock, "grammar first nodes: {:?}", grammar.first_nodes).map_err(Into::into)
+    }
+}
+
+#[cfg(test)]
+mod test_grammar_left_closure;