finish syntax checks

src/syntax/check/test.rs

@@ -1,5 +1,8 @@
 use crate::syntax::{
-    check::{check_missing_filters, check_missing_sink, check_missing_streamer},
+    check::{
+        check_literal_as_filter, check_literal_as_sink, check_literal_with_args,
+        check_missing_filters, check_missing_sink, check_missing_streamer,
+    },
     parse_syntax,
 };
 
@@ -26,3 +29,30 @@ fn test_check_missing_sink() {
 
     assert_eq!(check_missing_sink(&syntax), Err(14..15))
 }
+
+#[test]
+fn test_check_literal_as_sink() {
+    let test_data = "meow | test | 3";
+    let syntax = parse_syntax(test_data).unwrap();
+
+    assert_eq!(check_literal_as_sink(&syntax), Err(14..15))
+}
+
+#[test]
+fn test_check_literal_as_filter() {
+    let test_data = "meow | \"gay\" | 42 | 3.14 | uwu";
+    let syntax = parse_syntax(test_data).unwrap();
+
+    assert_eq!(
+        check_literal_as_filter(&syntax),
+        Err(vec![7..12, 15..17, 20..24])
+    )
+}
+
+#[test]
+fn test_check_literal_with_args() {
+    let test_data = "14 12 | sink";
+    let syntax = parse_syntax(test_data).unwrap();
+
+    assert_eq!(check_literal_with_args(&syntax), Err(0..5))
+}