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pub mod constants; pub mod ds; mod process; use constants::Message; use ds::mismatch::Mismatch; pub fn compare_jsons(a: &str, b: &str) -> Result<Mismatch, Message> { let value1 = match serde_json::from_str(a) { Ok(val1) => val1, Err(_) => return Err(Message::JSON1), }; let value2 = match serde_json::from_str(b) { Ok(val2) => val2, Err(_) => return Err(Message::JSON2), }; Ok(process::match_json(&value1, &value2)) } #[cfg(test)] mod tests { use super::ds::{key_node::KeyNode, mismatch::Mismatch}; use super::*; use maplit::hashmap; use serde_json::json; #[test] fn nested_diff() { let data1 = r#"{ "a":"b", "b":{ "c":{ "d":true, "e":5, "f":9, "h":{ "i":true, "j":false } } } }"#; let data2 = r#"{ "a":"b", "b":{ "c":{ "d":true, "e":6, "g":0, "h":{ "i":false, "k":false } } } }"#; let expected_left = KeyNode::Node(hashmap! { "b".to_string() => KeyNode::Node(hashmap! { "c".to_string() => KeyNode::Node(hashmap! { "f".to_string() => KeyNode::Nil, "h".to_string() => KeyNode::Node( hashmap! { "j".to_string() => KeyNode::Nil, } ), } ), }), }); let expected_right = KeyNode::Node(hashmap! { "b".to_string() => KeyNode::Node(hashmap! { "c".to_string() => KeyNode::Node(hashmap! { "g".to_string() => KeyNode::Nil, "h".to_string() => KeyNode::Node(hashmap! { "k".to_string() => KeyNode::Nil, } ) } ) } ) }); let expected_uneq = KeyNode::Node(hashmap! { "b".to_string() => KeyNode::Node(hashmap! { "c".to_string() => KeyNode::Node(hashmap! { "e".to_string() => KeyNode::Value(json!(5), json!(6)), "h".to_string() => KeyNode::Node(hashmap! { "i".to_string() => KeyNode::Value(json!(true), json!(false)), } ) } ) } ) }); let expected = Mismatch::new(expected_left, expected_right, expected_uneq); let mismatch = compare_jsons(data1, data2).unwrap(); assert_eq!(mismatch, expected, "Diff was incorrect."); } #[test] fn no_diff() { let data1 = r#"{ "a":"b", "b":{ "c":{ "d":true, "e":5, "f":9, "h":{ "i":true, "j":false } } } }"#; let data2 = r#"{ "a":"b", "b":{ "c":{ "d":true, "e":5, "f":9, "h":{ "i":true, "j":false } } } }"#; assert_eq!( compare_jsons(data1, data2).unwrap(), Mismatch::new(KeyNode::Nil, KeyNode::Nil, KeyNode::Nil) ); } #[test] fn no_json() { let data1 = r#"{}"#; let data2 = r#"{}"#; assert_eq!( compare_jsons(data1, data2).unwrap(), Mismatch::new(KeyNode::Nil, KeyNode::Nil, KeyNode::Nil) ); } #[test] fn parse_err_source_one() { let invalid_json1 = r#"{invalid: json}"#; let valid_json2 = r#"{"a":"b"}"#; match compare_jsons(invalid_json1, valid_json2) { Ok(_) => panic!("This shouldn't be an Ok"), Err(err) => { assert_eq!(Message::JSON1, err); } }; } #[test] fn parse_err_source_two() { let valid_json1 = r#"{"a":"b"}"#; let invalid_json2 = r#"{invalid: json}"#; match compare_jsons(valid_json1, invalid_json2) { Ok(_) => panic!("This shouldn't be an Ok"), Err(err) => { assert_eq!(Message::JSON2, err); } }; } }