[parser] Integration test of parsing a single Sym!

parser/tests/single_item.rs

@@ -0,0 +1,23 @@
+/* parser/tests/single_item.rs
+ * Eryn Wells <eryn@erynwells.me>
+ */
+
+//! Tests that the parser can handle inputs of single tokens.
+
+extern crate sibillexer;
+extern crate sibilparser;
+extern crate sibiltypes;
+
+use sibillexer::{Lex, Token};
+use sibillexer::Result as LexerResult;
+use sibilparser::Parser;
+use sibiltypes::{Obj, Sym};
+
+#[test]
+fn single_sym() {
+    let lex: LexerResult = Ok(Lex::new(Token::Id, "abc", 0, 0));
+    let tokens = vec![lex].into_iter();
+    let mut parser = Parser::new(tokens);
+    assert_eq!(parser.next(), Some(Ok(Obj::new(Sym::with_str("abc")))));
+    assert_eq!(parser.next(), None);
+}