chore: Stop cding into binary_install and use --all instead

test: Put tests that access private functions in tests module

.travis.yml

@@ -47,14 +47,10 @@ matrix:
     install:
       - *INSTALL_NODE_VIA_NVM
     script:
-    - cargo test --locked
+    - cargo test --all --locked
     - rustup component add rustfmt-preview
     - cargo fmt --version
     - cargo fmt --all -- --check
-    - cd binary-install
-    - cargo test
-    - cargo fmt --all -- --check
-    - cd ..
 
   - name: Book
     rust: stable

binary-install/src/lib.rs

@@ -278,6 +278,10 @@ fn hashed_dirname(url: &str, name: &str) -> String {
     format!("{}-{}", name, hex)
 }
 
+#[cfg(test)]
+mod tests {
+    use super::*;
+
     #[test]
     fn it_returns_same_hash_for_same_name_and_url() {
         let name = "wasm-pack";
@@ -339,3 +343,4 @@ fn it_returns_destination_if_binary_already_exists() {
         assert!(dl.is_ok());
         assert!(dl.unwrap().is_some())
     }
+}