Merge pull request #14 from DenisKolodin/master

Add to_json test and example

Author: zonyitoo

tests/modules/bson.rs

@@ -0,0 +1,26 @@
+use bson::{Bson, Document};
+
+#[test]
+fn to_json() {
+    let mut doc = Document::new();
+    doc.insert("first".to_owned(), Bson::I32(1));
+    doc.insert("second".to_owned(), Bson::String("foo".to_owned()));
+    doc.insert("alphanumeric".to_owned(), Bson::String("bar".to_owned()));
+    let data = Bson::Document(doc).to_json();    
+
+    assert!(data.is_object());
+    let obj = data.as_object().unwrap();
+    
+    let first = obj.get("first").unwrap();
+    assert!(first.is_number());
+    assert_eq!(first.as_i64().unwrap(), 1);
+
+    let second = obj.get("second").unwrap();
+    assert!(second.is_string());
+    assert_eq!(second.as_string().unwrap(), "foo");
+
+    let alphanumeric = obj.get("alphanumeric").unwrap();
+    assert!(alphanumeric.is_string());
+    assert_eq!(alphanumeric.as_string().unwrap(), "bar");
+
+}

tests/modules/mod.rs

@@ -2,3 +2,4 @@ mod encoder;
 mod macros;
 mod oid;
 mod ordered;
+mod bson;