diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/enum_external_deserialize.rs | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/tests/enum_external_deserialize.rs b/tests/enum_external_deserialize.rs new file mode 100644 index 0000000..3c38580 --- /dev/null +++ b/tests/enum_external_deserialize.rs @@ -0,0 +1,238 @@ +#[macro_use] +extern crate serde_derive; +extern crate toml; + +#[derive(Debug, Deserialize, PartialEq)] +enum TheEnum { + Plain, + Tuple(i64, bool), + NewType(String), + Struct { value: i64 }, +} + +#[derive(Debug, Deserialize, PartialEq)] +struct Val { + val: TheEnum, +} + +#[derive(Debug, Deserialize, PartialEq)] +struct Multi { + enums: Vec<TheEnum>, +} + +#[test] +fn invalid_variant_returns_error_with_good_message_string() { + let error = toml::from_str::<TheEnum>("\"NonExistent\"").unwrap_err(); + + assert_eq!( + error.to_string(), + "unknown variant `NonExistent`, expected one of `Plain`, `Tuple`, `NewType`, `Struct`" + ); +} + +#[test] +fn invalid_variant_returns_error_with_good_message_inline_table() { + let error = toml::from_str::<TheEnum>("{ NonExistent = {} }").unwrap_err(); + assert_eq!( + error.to_string(), + "unknown variant `NonExistent`, expected one of `Plain`, `Tuple`, `NewType`, `Struct`" + ); +} + +#[test] +fn extra_field_returns_expected_empty_table_error() { + let error = toml::from_str::<TheEnum>("{ Plain = { extra_field = 404 } }").unwrap_err(); + + assert_eq!(error.to_string(), "expected empty table"); +} + +#[test] +fn extra_field_returns_expected_empty_table_error_struct_variant() { + let error = toml::from_str::<TheEnum>("{ Struct = { value = 123, extra_0 = 0, extra_1 = 1 } }") + .unwrap_err(); + + assert_eq!( + error.to_string(), + r#"unexpected keys in table: `["extra_0", "extra_1"]`, available keys: `["value"]`"# + ); +} + +mod enum_unit { + use super::*; + + #[test] + fn from_str() { + assert_eq!(TheEnum::Plain, toml::from_str("\"Plain\"").unwrap()); + } + + #[test] + fn from_inline_table() { + assert_eq!(TheEnum::Plain, toml::from_str("{ Plain = {} }").unwrap()); + assert_eq!( + Val { + val: TheEnum::Plain + }, + toml::from_str("val = { Plain = {} }").unwrap() + ); + } + + #[test] + fn from_dotted_table() { + assert_eq!(TheEnum::Plain, toml::from_str("[Plain]\n").unwrap()); + } +} + +mod enum_tuple { + use super::*; + + #[test] + fn from_inline_table() { + assert_eq!( + TheEnum::Tuple(-123, true), + toml::from_str("{ Tuple = { 0 = -123, 1 = true } }").unwrap() + ); + assert_eq!( + Val { + val: TheEnum::Tuple(-123, true) + }, + toml::from_str("val = { Tuple = { 0 = -123, 1 = true } }").unwrap() + ); + } + + #[test] + fn from_dotted_table() { + assert_eq!( + TheEnum::Tuple(-123, true), + toml::from_str( + r#"[Tuple] + 0 = -123 + 1 = true + "# + ) + .unwrap() + ); + } +} + +mod enum_newtype { + use super::*; + + #[test] + fn from_inline_table() { + assert_eq!( + TheEnum::NewType("value".to_string()), + toml::from_str(r#"{ NewType = "value" }"#).unwrap() + ); + assert_eq!( + Val { + val: TheEnum::NewType("value".to_string()), + }, + toml::from_str(r#"val = { NewType = "value" }"#).unwrap() + ); + } + + #[test] + #[ignore = "Unimplemented: https://github.com/alexcrichton/toml-rs/pull/264#issuecomment-431707209"] + fn from_dotted_table() { + assert_eq!( + TheEnum::NewType("value".to_string()), + toml::from_str(r#"NewType = "value""#).unwrap() + ); + assert_eq!( + Val { + val: TheEnum::NewType("value".to_string()), + }, + toml::from_str( + r#"[val] + NewType = "value" + "# + ) + .unwrap() + ); + } +} + +mod enum_struct { + use super::*; + + #[test] + fn from_inline_table() { + assert_eq!( + TheEnum::Struct { value: -123 }, + toml::from_str("{ Struct = { value = -123 } }").unwrap() + ); + assert_eq!( + Val { + val: TheEnum::Struct { value: -123 } + }, + toml::from_str("val = { Struct = { value = -123 } }").unwrap() + ); + } + + #[test] + fn from_dotted_table() { + assert_eq!( + TheEnum::Struct { value: -123 }, + toml::from_str( + r#"[Struct] + value = -123 + "# + ) + .unwrap() + ); + } +} + +mod enum_array { + use super::*; + + #[test] + fn from_inline_tables() { + let toml_str = r#" + enums = [ + { Plain = {} }, + { Tuple = { 0 = -123, 1 = true } }, + { NewType = "value" }, + { Struct = { value = -123 } } + ]"#; + assert_eq!( + Multi { + enums: vec![ + TheEnum::Plain, + TheEnum::Tuple(-123, true), + TheEnum::NewType("value".to_string()), + TheEnum::Struct { value: -123 }, + ] + }, + toml::from_str(toml_str).unwrap() + ); + } + + #[test] + #[ignore = "Unimplemented: https://github.com/alexcrichton/toml-rs/pull/264#issuecomment-431707209"] + fn from_dotted_table() { + let toml_str = r#"[[enums]] + Plain = {} + + [[enums]] + Tuple = { 0 = -123, 1 = true } + + [[enums]] + NewType = "value" + + [[enums]] + Struct = { value = -123 } + "#; + assert_eq!( + Multi { + enums: vec![ + TheEnum::Plain, + TheEnum::Tuple(-123, true), + TheEnum::NewType("value".to_string()), + TheEnum::Struct { value: -123 }, + ] + }, + toml::from_str(toml_str).unwrap() + ); + } +} |