From d312c41dc7d08e3dbbcce8b9209015b774bf02af Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Sat, 25 Aug 2018 11:46:42 -0700
Subject: [PATCH] [parser] Integration test of parsing a single Sym!

---
 parser/src/lib.rs           |  2 +-
 parser/tests/single_item.rs | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 parser/tests/single_item.rs

diff --git a/parser/src/lib.rs b/parser/src/lib.rs
index 7c610c6..b51bcb8 100644
--- a/parser/src/lib.rs
+++ b/parser/src/lib.rs
@@ -20,7 +20,7 @@ use program_parser::ProgramParser;
 /// The output of calling `parse()` on a Parser is one of these Result objects.
 pub type Result = std::result::Result<Obj, ParseError>;
 
-#[derive(Debug)]
+#[derive(Debug, PartialEq)]
 pub enum ParseError {
     LexerError{msg: String},
     ParserError{msg: String}
diff --git a/parser/tests/single_item.rs b/parser/tests/single_item.rs
new file mode 100644
index 0000000..9614a16
--- /dev/null
+++ b/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);
+}