leo/ast/tests/serialization/json.rs
2020-11-12 12:00:27 -08:00

94 lines
3.0 KiB
Rust

// 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 leo_ast::Ast;
#[cfg(not(feature = "ci_skip"))]
use leo_ast::Program;
use leo_grammar::Grammar;
use std::path::{Path, PathBuf};
fn to_ast(program_filepath: &Path) -> Ast {
// Loads the Leo code as a string from the given file path.
let program_string = Grammar::load_file(program_filepath).unwrap();
// Parses the Leo file and constructs a grammar ast.
let ast = Grammar::new(&program_filepath, &program_string).unwrap();
// Parses the pest ast and constructs a Leo ast.
Ast::new("leo_tree", &ast)
}
#[test]
#[cfg(not(feature = "ci_skip"))]
fn test_serialize() {
// Construct an ast from the given test file.
let ast = {
let mut program_filepath = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
program_filepath.push("tests/serialization/main.leo");
to_ast(&program_filepath)
};
// Serializes the ast into JSON format.
let serialized_ast: Program = serde_json::from_value(serde_json::to_value(ast.into_repr()).unwrap()).unwrap();
// Load the expected ast.
let expected: Program = serde_json::from_str(include_str!("expected_leo_ast.json")).unwrap();
assert_eq!(expected, serialized_ast);
}
#[test]
#[cfg(not(feature = "ci_skip"))]
fn test_deserialize() {
// Load the expected ast.
let expected_ast = {
let mut program_filepath = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
program_filepath.push("tests/serialization/main.leo");
to_ast(&program_filepath)
};
// Construct an ast by deserializing a ast JSON file.
let serialized_ast = include_str!("expected_leo_ast.json");
let ast = Ast::from_json_string(serialized_ast).unwrap();
assert_eq!(expected_ast, ast);
}
#[test]
fn test_serialize_deserialize_serialize() {
// Construct an ast from the given test file.
let ast = {
let mut program_filepath = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
program_filepath.push("tests/serialization/main.leo");
to_ast(&program_filepath)
};
// Serializes the ast into JSON format.
let serialized_ast = ast.to_json_string().unwrap();
// Deserializes the serialized ast into an ast.
let ast = Ast::from_json_string(&serialized_ast).unwrap();
// Reserializes the ast into JSON format.
let reserialized_ast = ast.to_json_string().unwrap();
assert_eq!(serialized_ast, reserialized_ast);
}