wip

1 files changed, 476 insertions, 0 deletions

diff --git a/tests/serde.rs b/tests/serde.rs
new file mode 100644
index 0000000..7e3c325
--- /dev/null
+++ b/tests/serde.rs
@@ -0,0 +1,476 @@
+#![cfg(feature = "serde")]
+#![feature(custom_derive, plugin)]
+#![plugin(serde_macros)]
+
+
+extern crate serde;
+extern crate toml;
+
+use std::collections::{BTreeMap, HashSet};
+use serde::{Deserialize, Serialize, Deserializer};
+
+use toml::{Encoder, Decoder, DecodeError};
+use toml::Value;
+use toml::Value::{Table, Integer, Array, Float};
+
+macro_rules! t {
+    ($e:expr) => (match $e {
+        Ok(t) => t,
+        Err(e) => panic!("{} failed with {}", stringify!($e), e),
+    })
+}
+
+macro_rules! encode( ($t:expr) => ({
+    let mut e = Encoder::new();
+    t!($t.serialize(&mut e));
+    e.toml
+}) );
+
+macro_rules! decode( ($t:expr) => ({
+    let mut d = Decoder::new($t);
+    t!(Deserialize::deserialize(&mut d))
+}) );
+
+macro_rules! map( ($($k:ident, $v:expr),*) => ({
+    let mut _m = BTreeMap::new();
+    $(_m.insert(stringify!($k).to_string(), $v);)*
+    _m
+}) );
+
+#[test]
+fn smoke() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: isize }
+
+    let v = Foo { a: 2 };
+    assert_eq!(encode!(v), map! { a, Integer(2) });
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn smoke_hyphen() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a_b: isize }
+
+    let v = Foo { a_b: 2 };
+    assert_eq!(encode!(v), map! { a_b, Integer(2) });
+    assert_eq!(v, decode!(Table(encode!(v))));
+
+    let mut m = BTreeMap::new();
+    m.insert("a-b".to_string(), Integer(2));
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn nested() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: isize, b: Bar }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Bar { a: String }
+
+    let v = Foo { a: 2, b: Bar { a: "test".to_string() } };
+    assert_eq!(encode!(v),
+               map! {
+                   a, Integer(2),
+                   b, Table(map! {
+                       a, Value::String("test".to_string())
+                   })
+               });
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn application_decode_error() {
+    #[derive(PartialEq, Debug)]
+    struct Range10(usize);
+    impl Deserialize for Range10 {
+         fn deserialize<D: Deserializer>(d: &mut D) -> Result<Range10, D::Error> {
+             let x: usize = try!(Deserialize::deserialize(d));
+             if x > 10 {
+                 Err(serde::de::Error::syntax_error())
+             } else {
+                 Ok(Range10(x))
+             }
+         }
+    }
+    let mut d_good = Decoder::new(Integer(5));
+    let mut d_bad1 = Decoder::new(Value::String("not an isize".to_string()));
+    let mut d_bad2 = Decoder::new(Integer(11));
+
+    assert_eq!(Ok(Range10(5)), Deserialize::deserialize(&mut d_good));
+
+    let err1: Result<Range10, _> = Deserialize::deserialize(&mut d_bad1);
+    assert!(err1.is_err());
+    let err2: Result<Range10, _> = Deserialize::deserialize(&mut d_bad2);
+    assert!(err2.is_err());
+}
+
+#[test]
+fn array() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: Vec<isize> }
+
+    let v = Foo { a: vec![1, 2, 3, 4] };
+    assert_eq!(encode!(v),
+               map! {
+                   a, Array(vec![
+                        Integer(1),
+                        Integer(2),
+                        Integer(3),
+                        Integer(4)
+                   ])
+               });
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn tuple() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: (isize, isize, isize, isize) }
+
+    let v = Foo { a: (1, 2, 3, 4) };
+    assert_eq!(encode!(v),
+               map! {
+                   a, Array(vec![
+                        Integer(1),
+                        Integer(2),
+                        Integer(3),
+                        Integer(4)
+                   ])
+               });
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn inner_structs_with_options() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo {
+        a: Option<Box<Foo>>,
+        b: Bar,
+    }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Bar {
+        a: String,
+        b: f64,
+    }
+
+    let v = Foo {
+        a: Some(Box::new(Foo {
+            a: None,
+            b: Bar { a: "foo".to_string(), b: 4.5 },
+        })),
+        b: Bar { a: "bar".to_string(), b: 1.0 },
+    };
+    assert_eq!(encode!(v),
+               map! {
+                   a, Table(map! {
+                       b, Table(map! {
+                           a, Value::String("foo".to_string()),
+                           b, Float(4.5)
+                       })
+                   }),
+                   b, Table(map! {
+                       a, Value::String("bar".to_string()),
+                       b, Float(1.0)
+                   })
+               });
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn hashmap() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo {
+        map: BTreeMap<String, isize>,
+        set: HashSet<char>,
+    }
+
+    let v = Foo {
+        map: {
+            let mut m = BTreeMap::new();
+            m.insert("foo".to_string(), 10);
+            m.insert("bar".to_string(), 4);
+            m
+        },
+        set: {
+            let mut s = HashSet::new();
+            s.insert('a');
+            s
+        },
+    };
+    assert_eq!(encode!(v),
+        map! {
+            map, Table(map! {
+                foo, Integer(10),
+                bar, Integer(4)
+            }),
+            set, Array(vec![Value::String("a".to_string())])
+        }
+    );
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn tuple_struct() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo(isize, String, f64);
+
+    let v = Foo(1, "foo".to_string(), 4.5);
+    assert_eq!(
+        encode!(v),
+        map! {
+            _field0, Integer(1),
+            _field1, Value::String("foo".to_string()),
+            _field2, Float(4.5)
+        }
+    );
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn table_array() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: Vec<Bar>, }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Bar { a: isize }
+
+    let v = Foo { a: vec![Bar { a: 1 }, Bar { a: 2 }] };
+    assert_eq!(
+        encode!(v),
+        map! {
+            a, Array(vec![
+                Table(map!{ a, Integer(1) }),
+                Table(map!{ a, Integer(2) }),
+            ])
+        }
+    );
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn type_errors() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { bar: isize }
+
+    let mut d = Decoder::new(Table(map! {
+        bar, Float(1.0)
+    }));
+    let a: Result<Foo, DecodeError> = Deserialize::deserialize(&mut d);
+    match a {
+        Ok(..) => panic!("should not have decoded"),
+        Err(e) => {
+            assert_eq!(format!("{}", e),
+                       "expected a value of type `integer`, but \
+                        found a value of type `float` for the key `bar`");
+        }
+    }
+}
+
+#[test]
+fn missing_errors() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { bar: isize }
+
+    let mut d = Decoder::new(Table(map! {
+    }));
+    let a: Result<Foo, DecodeError> = Deserialize::deserialize(&mut d);
+    match a {
+        Ok(..) => panic!("should not have decoded"),
+        Err(e) => {
+            assert_eq!(format!("{}", e),
+                       "expected a value of type `integer` for the key `bar`");
+        }
+    }
+}
+
+#[test]
+fn parse_enum() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: E }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    enum E {
+        Bar(isize),
+        Baz(f64),
+        Last(Foo2),
+    }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo2 {
+        test: String,
+    }
+
+    let v = Foo { a: E::Bar(10) };
+    assert_eq!(
+        encode!(v),
+        map! { a, Integer(10) }
+    );
+    assert_eq!(v, decode!(Table(encode!(v))));
+
+    let v = Foo { a: E::Baz(10.2) };
+    assert_eq!(
+        encode!(v),
+        map! { a, Float(10.2) }
+    );
+    assert_eq!(v, decode!(Table(encode!(v))));
+
+    let v = Foo { a: E::Last(Foo2 { test: "test".to_string() }) };
+    assert_eq!(
+        encode!(v),
+        map! { a, Table(map! { test, Value::String("test".to_string()) }) }
+    );
+    assert_eq!(v, decode!(Table(encode!(v))));
+}
+
+#[test]
+fn unused_fields() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: isize }
+
+    let v = Foo { a: 2 };
+    let mut d = Decoder::new(Table(map! {
+        a, Integer(2),
+        b, Integer(5)
+    }));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+
+    assert_eq!(d.toml, Some(Table(map! {
+        b, Integer(5)
+    })));
+}
+
+#[test]
+fn unused_fields2() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: Bar }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Bar { a: isize }
+
+    let v = Foo { a: Bar { a: 2 } };
+    let mut d = Decoder::new(Table(map! {
+        a, Table(map! {
+            a, Integer(2),
+            b, Integer(5)
+        })
+    }));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+
+    assert_eq!(d.toml, Some(Table(map! {
+        a, Table(map! {
+            b, Integer(5)
+        })
+    })));
+}
+
+#[test]
+fn unused_fields3() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: Bar }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Bar { a: isize }
+
+    let v = Foo { a: Bar { a: 2 } };
+    let mut d = Decoder::new(Table(map! {
+        a, Table(map! {
+            a, Integer(2)
+        })
+    }));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+
+    assert_eq!(d.toml, None);
+}
+
+#[test]
+fn unused_fields4() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: BTreeMap<String, String> }
+
+    let v = Foo { a: map! { a, "foo".to_string() } };
+    let mut d = Decoder::new(Table(map! {
+        a, Table(map! {
+            a, Value::String("foo".to_string())
+        })
+    }));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+
+    assert_eq!(d.toml, None);
+}
+
+#[test]
+fn unused_fields5() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: Vec<String> }
+
+    let v = Foo { a: vec!["a".to_string()] };
+    let mut d = Decoder::new(Table(map! {
+        a, Array(vec![Value::String("a".to_string())])
+    }));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+
+    assert_eq!(d.toml, None);
+}
+
+#[test]
+fn unused_fields6() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: Option<Vec<String>> }
+
+    let v = Foo { a: Some(vec![]) };
+    let mut d = Decoder::new(Table(map! {
+        a, Array(vec![])
+    }));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+
+    assert_eq!(d.toml, None);
+}
+
+#[test]
+fn unused_fields7() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: Vec<Bar> }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Bar { a: isize }
+
+    let v = Foo { a: vec![Bar { a: 1 }] };
+    let mut d = Decoder::new(Table(map! {
+        a, Array(vec![Table(map! {
+            a, Integer(1),
+            b, Integer(2)
+        })])
+    }));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+
+    assert_eq!(d.toml, Some(Table(map! {
+        a, Array(vec![Table(map! {
+            b, Integer(2)
+        })])
+    })));
+}
+
+#[test]
+fn empty_arrays() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: Vec<Bar> }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Bar;
+
+    let v = Foo { a: vec![] };
+    let mut d = Decoder::new(Table(map! {}));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+}
+
+#[test]
+fn empty_arrays2() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Foo { a: Option<Vec<Bar>> }
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    struct Bar;
+
+    let v = Foo { a: None };
+    let mut d = Decoder::new(Table(map! {}));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+
+    let v = Foo { a: Some(vec![]) };
+    let mut d = Decoder::new(Table(map! {
+        a, Array(vec![])
+    }));
+    assert_eq!(v, t!(Deserialize::deserialize(&mut d)));
+}