diff options
Diffstat (limited to 'compiler/rustc_serialize/tests/json.rs')
| -rw-r--r-- | compiler/rustc_serialize/tests/json.rs | 208 |
1 files changed, 106 insertions, 102 deletions
diff --git a/compiler/rustc_serialize/tests/json.rs b/compiler/rustc_serialize/tests/json.rs index a759fa1bf1a..ede912bdfb6 100644 --- a/compiler/rustc_serialize/tests/json.rs +++ b/compiler/rustc_serialize/tests/json.rs @@ -1,14 +1,10 @@ #![allow(rustc::internal)] -use json::DecoderError::*; use json::ErrorCode::*; use json::Json::*; use json::JsonEvent::*; use json::ParserError::*; -use json::{ - from_str, DecodeResult, Decoder, DecoderError, Encoder, EncoderError, Json, JsonEvent, Parser, - StackElement, -}; +use json::{from_str, Decoder, Encoder, EncoderError, Json, JsonEvent, Parser, StackElement}; use rustc_macros::{Decodable, Encodable}; use rustc_serialize::json; use rustc_serialize::{Decodable, Encodable}; @@ -26,27 +22,27 @@ struct OptionData { #[test] fn test_decode_option_none() { let s = "{}"; - let obj: OptionData = json::decode(s).unwrap(); + let obj: OptionData = json::decode(s); assert_eq!(obj, OptionData { opt: None }); } #[test] fn test_decode_option_some() { let s = "{ \"opt\": 10 }"; - let obj: OptionData = json::decode(s).unwrap(); + let obj: OptionData = json::decode(s); assert_eq!(obj, OptionData { opt: Some(10) }); } #[test] -fn test_decode_option_malformed() { - check_err::<OptionData>( - "{ \"opt\": [] }", - ExpectedError("Number".to_string(), "[]".to_string()), - ); - check_err::<OptionData>( - "{ \"opt\": false }", - ExpectedError("Number".to_string(), "false".to_string()), - ); +#[should_panic(expected = r#"ExpectedError("Number", "[]")"#)] +fn test_decode_option_malformed1() { + check_err::<OptionData>(r#"{ "opt": [] }"#); +} + +#[test] +#[should_panic(expected = r#"ExpectedError("Number", "false")"#)] +fn test_decode_option_malformed2() { + check_err::<OptionData>(r#"{ "opt": false }"#); } #[derive(PartialEq, Encodable, Decodable, Debug)] @@ -329,13 +325,13 @@ fn test_read_identifiers() { #[test] fn test_decode_identifiers() { - let v: () = json::decode("null").unwrap(); + let v: () = json::decode("null"); assert_eq!(v, ()); - let v: bool = json::decode("true").unwrap(); + let v: bool = json::decode("true"); assert_eq!(v, true); - let v: bool = json::decode("false").unwrap(); + let v: bool = json::decode("false"); assert_eq!(v, false); } @@ -368,42 +364,42 @@ fn test_read_number() { } #[test] +#[should_panic(expected = r#"ExpectedError("Integer", "765.25")"#)] fn test_decode_numbers() { - let v: f64 = json::decode("3").unwrap(); + let v: f64 = json::decode("3"); assert_eq!(v, 3.0); - let v: f64 = json::decode("3.1").unwrap(); + let v: f64 = json::decode("3.1"); assert_eq!(v, 3.1); - let v: f64 = json::decode("-1.2").unwrap(); + let v: f64 = json::decode("-1.2"); assert_eq!(v, -1.2); - let v: f64 = json::decode("0.4").unwrap(); + let v: f64 = json::decode("0.4"); assert_eq!(v, 0.4); - let v: f64 = json::decode("0.4e5").unwrap(); + let v: f64 = json::decode("0.4e5"); assert_eq!(v, 0.4e5); - let v: f64 = json::decode("0.4e15").unwrap(); + let v: f64 = json::decode("0.4e15"); assert_eq!(v, 0.4e15); - let v: f64 = json::decode("0.4e-01").unwrap(); + let v: f64 = json::decode("0.4e-01"); assert_eq!(v, 0.4e-01); - let v: u64 = json::decode("0").unwrap(); + let v: u64 = json::decode("0"); assert_eq!(v, 0); - let v: u64 = json::decode("18446744073709551615").unwrap(); + let v: u64 = json::decode("18446744073709551615"); assert_eq!(v, u64::MAX); - let v: i64 = json::decode("-9223372036854775808").unwrap(); + let v: i64 = json::decode("-9223372036854775808"); assert_eq!(v, i64::MIN); - let v: i64 = json::decode("9223372036854775807").unwrap(); + let v: i64 = json::decode("9223372036854775807"); assert_eq!(v, i64::MAX); - let res: DecodeResult<i64> = json::decode("765.25"); - assert_eq!(res, Err(ExpectedError("Integer".to_string(), "765.25".to_string()))); + json::decode::<i64>("765.25"); } #[test] @@ -438,7 +434,7 @@ fn test_decode_str() { ]; for (i, o) in s { - let v: string::String = json::decode(i).unwrap(); + let v: string::String = json::decode(i); assert_eq!(v, o); } } @@ -463,39 +459,41 @@ fn test_read_array() { #[test] fn test_decode_array() { - let v: Vec<()> = json::decode("[]").unwrap(); + let v: Vec<()> = json::decode("[]"); assert_eq!(v, []); - let v: Vec<()> = json::decode("[null]").unwrap(); + let v: Vec<()> = json::decode("[null]"); assert_eq!(v, [()]); - let v: Vec<bool> = json::decode("[true]").unwrap(); + let v: Vec<bool> = json::decode("[true]"); assert_eq!(v, [true]); - let v: Vec<isize> = json::decode("[3, 1]").unwrap(); + let v: Vec<isize> = json::decode("[3, 1]"); assert_eq!(v, [3, 1]); - let v: Vec<Vec<usize>> = json::decode("[[3], [1, 2]]").unwrap(); + let v: Vec<Vec<usize>> = json::decode("[[3], [1, 2]]"); assert_eq!(v, [vec![3], vec![1, 2]]); } #[test] fn test_decode_tuple() { - let t: (usize, usize, usize) = json::decode("[1, 2, 3]").unwrap(); + let t: (usize, usize, usize) = json::decode("[1, 2, 3]"); assert_eq!(t, (1, 2, 3)); - let t: (usize, string::String) = json::decode("[1, \"two\"]").unwrap(); + let t: (usize, string::String) = json::decode("[1, \"two\"]"); assert_eq!(t, (1, "two".to_string())); } #[test] +#[should_panic] fn test_decode_tuple_malformed_types() { - assert!(json::decode::<(usize, string::String)>("[1, 2]").is_err()); + json::decode::<(usize, string::String)>("[1, 2]"); } #[test] +#[should_panic] fn test_decode_tuple_malformed_length() { - assert!(json::decode::<(usize, usize)>("[1, 2, 3]").is_err()); + json::decode::<(usize, usize)>("[1, 2, 3]"); } #[test] @@ -562,7 +560,7 @@ fn test_decode_struct() { ] }"; - let v: Outer = json::decode(s).unwrap(); + let v: Outer = json::decode(s); assert_eq!( v, Outer { inner: vec![Inner { a: (), b: 2, c: vec!["abc".to_string(), "xyz".to_string()] }] } @@ -577,7 +575,7 @@ struct FloatStruct { #[test] fn test_decode_struct_with_nan() { let s = "{\"f\":null,\"a\":[null,123]}"; - let obj: FloatStruct = json::decode(s).unwrap(); + let obj: FloatStruct = json::decode(s); assert!(obj.f.is_nan()); assert!(obj.a[0].is_nan()); assert_eq!(obj.a[1], 123f64); @@ -585,20 +583,20 @@ fn test_decode_struct_with_nan() { #[test] fn test_decode_option() { - let value: Option<string::String> = json::decode("null").unwrap(); + let value: Option<string::String> = json::decode("null"); assert_eq!(value, None); - let value: Option<string::String> = json::decode("\"jodhpurs\"").unwrap(); + let value: Option<string::String> = json::decode("\"jodhpurs\""); assert_eq!(value, Some("jodhpurs".to_string())); } #[test] fn test_decode_enum() { - let value: Animal = json::decode("\"Dog\"").unwrap(); + let value: Animal = json::decode("\"Dog\""); assert_eq!(value, Dog); let s = "{\"variant\":\"Frog\",\"fields\":[\"Henry\",349]}"; - let value: Animal = json::decode(s).unwrap(); + let value: Animal = json::decode(s); assert_eq!(value, Frog("Henry".to_string(), 349)); } @@ -606,7 +604,7 @@ fn test_decode_enum() { fn test_decode_map() { let s = "{\"a\": \"Dog\", \"b\": {\"variant\":\"Frog\",\ \"fields\":[\"Henry\", 349]}}"; - let mut map: BTreeMap<string::String, Animal> = json::decode(s).unwrap(); + let mut map: BTreeMap<string::String, Animal> = json::decode(s); assert_eq!(map.remove(&"a".to_string()), Some(Dog)); assert_eq!(map.remove(&"b".to_string()), Some(Frog("Henry".to_string(), 349))); @@ -630,59 +628,65 @@ enum DecodeEnum { A(f64), B(string::String), } -fn check_err<T: Decodable<Decoder>>(to_parse: &'static str, expected: DecoderError) { - let res: DecodeResult<T> = match from_str(to_parse) { - Err(e) => Err(ParseError(e)), - Ok(json) => Decodable::decode(&mut Decoder::new(json)), - }; - match res { - Ok(_) => panic!("`{:?}` parsed & decoded ok, expecting error `{:?}`", to_parse, expected), - Err(ParseError(e)) => panic!("`{:?}` is not valid json: {:?}", to_parse, e), - Err(e) => { - assert_eq!(e, expected); - } - } +fn check_err<T: Decodable<Decoder>>(to_parse: &str) { + let json = from_str(to_parse).unwrap(); + let _: T = Decodable::decode(&mut Decoder::new(json)); } #[test] -fn test_decode_errors_struct() { - check_err::<DecodeStruct>("[]", ExpectedError("Object".to_string(), "[]".to_string())); - check_err::<DecodeStruct>( - "{\"x\": true, \"y\": true, \"z\": \"\", \"w\": []}", - ExpectedError("Number".to_string(), "true".to_string()), - ); - check_err::<DecodeStruct>( - "{\"x\": 1, \"y\": [], \"z\": \"\", \"w\": []}", - ExpectedError("Boolean".to_string(), "[]".to_string()), - ); - check_err::<DecodeStruct>( - "{\"x\": 1, \"y\": true, \"z\": {}, \"w\": []}", - ExpectedError("String".to_string(), "{}".to_string()), - ); - check_err::<DecodeStruct>( - "{\"x\": 1, \"y\": true, \"z\": \"\", \"w\": null}", - ExpectedError("Array".to_string(), "null".to_string()), - ); - check_err::<DecodeStruct>( - "{\"x\": 1, \"y\": true, \"z\": \"\"}", - MissingFieldError("w".to_string()), - ); +#[should_panic(expected = r#"ExpectedError("Object", "[]")"#)] +fn test_decode_errors_struct1() { + check_err::<DecodeStruct>("[]"); } #[test] -fn test_decode_errors_enum() { - check_err::<DecodeEnum>("{}", MissingFieldError("variant".to_string())); - check_err::<DecodeEnum>( - "{\"variant\": 1}", - ExpectedError("String".to_string(), "1".to_string()), - ); - check_err::<DecodeEnum>("{\"variant\": \"A\"}", MissingFieldError("fields".to_string())); - check_err::<DecodeEnum>( - "{\"variant\": \"A\", \"fields\": null}", - ExpectedError("Array".to_string(), "null".to_string()), - ); - check_err::<DecodeEnum>( - "{\"variant\": \"C\", \"fields\": []}", - UnknownVariantError("C".to_string()), - ); +#[should_panic(expected = r#"ExpectedError("Number", "true")"#)] +fn test_decode_errors_struct2() { + check_err::<DecodeStruct>(r#"{"x": true, "y": true, "z": "", "w": []}"#); +} +#[test] +#[should_panic(expected = r#"ExpectedError("Boolean", "[]")"#)] +fn test_decode_errors_struct3() { + check_err::<DecodeStruct>(r#"{"x": 1, "y": [], "z": "", "w": []}"#); +} +#[test] +#[should_panic(expected = r#"ExpectedError("String", "{}")"#)] +fn test_decode_errors_struct4() { + check_err::<DecodeStruct>(r#"{"x": 1, "y": true, "z": {}, "w": []}"#); +} +#[test] +#[should_panic(expected = r#"ExpectedError("Array", "null")"#)] +fn test_decode_errors_struct5() { + check_err::<DecodeStruct>(r#"{"x": 1, "y": true, "z": "", "w": null}"#); +} +#[test] +#[should_panic(expected = r#"ExpectedError("Array", "null")"#)] +fn test_decode_errors_struct6() { + check_err::<DecodeStruct>(r#"{"x": 1, "y": true, "z": ""}"#); +} + +#[test] +#[should_panic(expected = r#"MissingFieldError("variant")"#)] +fn test_decode_errors_enum1() { + check_err::<DecodeEnum>(r#"{}"#); +} +#[test] +#[should_panic(expected = r#"ExpectedError("String", "1")"#)] +fn test_decode_errors_enum2() { + check_err::<DecodeEnum>(r#"{"variant": 1}"#); +} +#[test] +#[should_panic(expected = r#"MissingFieldError("fields")"#)] +fn test_decode_errors_enum3() { + check_err::<DecodeEnum>(r#"{"variant": "A"}"#); +} +#[test] +#[should_panic(expected = r#"ExpectedError("Array", "null")"#)] +fn test_decode_errors_enum4() { + check_err::<DecodeEnum>(r#"{"variant": "A", "fields": null}"#); +} +#[test] +#[should_panic(expected = r#"UnknownVariantError("C")"#)] +fn test_decode_errors_enum5() { + check_err::<DecodeEnum>(r#"{"variant": "C", "fields": []}"#); } #[test] @@ -944,7 +948,7 @@ fn test_hashmap_with_enum_key() { map.insert(Enum::Foo, 0); let result = json::encode(&map).unwrap(); assert_eq!(&result[..], r#"{"Foo":0}"#); - let decoded: HashMap<Enum, _> = json::decode(&result).unwrap(); + let decoded: HashMap<Enum, _> = json::decode(&result); assert_eq!(map, decoded); } @@ -957,10 +961,11 @@ fn test_hashmap_with_numeric_key_can_handle_double_quote_delimited_key() { Ok(o) => o, }; let mut decoder = Decoder::new(json_obj); - let _hm: HashMap<usize, bool> = Decodable::decode(&mut decoder).unwrap(); + let _hm: HashMap<usize, bool> = Decodable::decode(&mut decoder); } #[test] +#[should_panic(expected = r#"ExpectedError("Number", "a")"#)] fn test_hashmap_with_numeric_key_will_error_with_string_keys() { use std::collections::HashMap; let json_str = "{\"a\":true}"; @@ -969,8 +974,7 @@ fn test_hashmap_with_numeric_key_will_error_with_string_keys() { Ok(o) => o, }; let mut decoder = Decoder::new(json_obj); - let result: Result<HashMap<usize, bool>, DecoderError> = Decodable::decode(&mut decoder); - assert_eq!(result, Err(ExpectedError("Number".to_string(), "a".to_string()))); + let _: HashMap<usize, bool> = Decodable::decode(&mut decoder); } fn assert_stream_equal(src: &str, expected: Vec<(JsonEvent, Vec<StackElement<'_>>)>) { |