diff --git a/src/command/mod.rs b/src/command/mod.rs
index 2f477b9b9..150612c8b 100644
--- a/src/command/mod.rs
+++ b/src/command/mod.rs
@@ -2,7 +2,7 @@
 
 pub mod init;
 mod login;
-mod pack;
+pub mod pack;
 mod publish;
 pub mod utils;
 
diff --git a/src/command/pack.rs b/src/command/pack.rs
index c9c9ffd48..ff2146abb 100644
--- a/src/command/pack.rs
+++ b/src/command/pack.rs
@@ -1,3 +1,5 @@
+//! Pack function to use npm pack
+
 use command::utils::{find_pkg_directory, set_crate_path};
 use error::Error;
 use npm;
diff --git a/tests/manifest/main.rs b/tests/manifest/main.rs
index cf661969d..05bbb6d59 100644
--- a/tests/manifest/main.rs
+++ b/tests/manifest/main.rs
@@ -3,12 +3,16 @@ extern crate failure;
 extern crate serde_derive;
 extern crate serde_json;
 extern crate wasm_pack;
+#[macro_use]
+extern crate slog;
 
 mod utils;
 
 use std::collections::HashSet;
 use std::fs;
 
+use wasm_pack::command;
+use wasm_pack::error;
 use wasm_pack::manifest;
 
 #[test]
@@ -182,3 +186,26 @@ fn it_does_not_error_when_wasm_bindgen_is_declared() {
     let step = wasm_pack::progressbar::Step::new(1);
     assert!(manifest::check_crate_config("tests/fixtures/js-hello-world", &step).is_ok());
 }
+
+#[test]
+fn pack_does_not_error_when_path_is_to_pkg_dir() {
+    let path = "tests/fixtures/js-hello-world".to_owned();
+    assert!(command::pack::pack(Some(path), &utils::get_nop_logger()).is_ok())
+}
+
+#[test]
+fn pack_does_not_error_when_path_is_to_pkg_dir_parent() {
+    let path = "tests/fixtures/js-hello-world".to_owned();
+    assert!(command::pack::pack(Some(path), &utils::get_nop_logger()).is_ok())
+}
+
+#[test]
+fn pack_does_error_when_path_is_not_to_pkg_dir_or_parent() {
+    let path = "tests/manifest".to_owned();
+    let result = command::pack::pack(Some(path), &utils::get_nop_logger());
+    assert!(result.is_err());
+    assert!(match result.unwrap_err() {
+        error::Error::PkgNotFound { .. } => true,
+        _ => false,
+    });
+}
diff --git a/tests/manifest/utils.rs b/tests/manifest/utils.rs
index 25add4640..38940e710 100644
--- a/tests/manifest/utils.rs
+++ b/tests/manifest/utils.rs
@@ -4,6 +4,8 @@ use std::io::prelude::*;
 use failure::Error;
 use serde_json;
 
+use slog::{Discard, Logger};
+
 #[derive(Deserialize)]
 pub struct NpmPackage {
     pub name: String,
@@ -31,3 +33,7 @@ pub fn read_package_json(path: &str) -> Result<NpmPackage, Error> {
 
     Ok(serde_json::from_str(&pkg_contents)?)
 }
+
+pub fn get_nop_logger() -> Logger {
+    Logger::root(Discard {}, o!())
+}