undeprecate parse_program_from_string and add test

compiler/src/compiler.rs

@@ -229,9 +229,6 @@ impl<F: Field + PrimeField, G: GroupType<F>> Compiler<F, G> {
     /// Equivalent to parse_and_check_program but uses the given program_string instead of a main
     /// file path.
     ///
-    /// Used for testing only.
-    ///
-    #[deprecated(note = "Please use the 'parse_program' method instead.")]
     pub fn parse_program_from_string(&mut self, program_string: &str) -> Result<(), CompilerError> {
         // Use the given bytes to construct the abstract syntax tree.
         let ast = Grammar::new(&self.main_file_path, &program_string).map_err(|mut e| {

compiler/tests/compiler/main.leo

@@ -0,0 +1,3 @@
+function main() {
+    let a: u32 = 1 + 2;
+}

compiler/tests/compiler/mod.rs

@@ -0,0 +1,46 @@
+// Copyright (C) 2019-2020 Aleo Systems Inc.
+// This file is part of the Leo library.
+
+// The Leo library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// The Leo library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with the Leo library. If not, see <https://www.gnu.org/licenses/>.
+
+use crate::{assert_satisfied, get_output, parse_program, EdwardsTestCompiler};
+
+use std::{env::current_dir, path::PathBuf};
+
+static MAIN_FILE_NAME: &str = "tests/compiler/main.leo";
+
+// Compiler tests rely on knowledge of local directories. They should be run locally only.
+
+#[test]
+#[ignore]
+fn test_parse_program_from_string() {
+    // Parse program from string with compiler.
+    let program_string = include_str!("main.leo");
+    let mut compiler_no_path = EdwardsTestCompiler::new("".to_string(), PathBuf::new(), PathBuf::new());
+
+    compiler_no_path.parse_program_from_string(program_string).unwrap();
+
+    // Parse program from file path with compiler.
+    let mut local = current_dir().unwrap();
+    local.push(MAIN_FILE_NAME);
+
+    let compiler_with_path =
+        EdwardsTestCompiler::parse_program_without_input("".to_string(), local, PathBuf::new()).unwrap();
+
+    // Compare output bytes.
+    let expected_output = get_output(compiler_no_path);
+    let actual_output = get_output(compiler_with_path);
+
+    assert_eq!(expected_output, actual_output);
+}

compiler/tests/mod.rs

@@ -21,6 +21,7 @@ pub mod address;
 pub mod array;
 pub mod boolean;
 pub mod circuits;
+pub mod compiler;
 pub mod console;
 pub mod core;
 pub mod definition;