Add missing test dependencies

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

1 files changed, 6 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 9bd6579..98b0ff2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,6 +26,12 @@ optional = true
 versions = "0.5"
 optional = true
 
+[dev-dependencies]
+toml         = "0.5"
+serde_json   = "1"
+quickcheck   = "0.8"
+serde_derive = "1"
+
 [features]
 default = ["backend_toml", "backend_serde_json"]