diff --git a/src/lib.rs b/src/lib.rs
index 31e1bb2..b7724c3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,7 +1,60 @@
+use std::vec::Vec;
+
 #[cfg(test)]
-mod tests {
-    #[test]
-    fn it_works() {
-        assert_eq!(2 + 2, 4);
-    }
+mod tests;
+
+// public-facing library functions
+
+pub fn init(conf_dir: &str) -> bool {
+    // TODO
+    return conf_dir != "" && false;
+}
+
+pub fn install(pkg_name: &str) -> bool {
+    // TODO
+    return pkg_name != "" && false;
+}
+
+pub fn update_all() -> bool {
+    // TODO
+    return false;
+}
+
+pub fn update(pkg_name: &str) -> bool {
+    // TODO
+    return pkg_name != "" && false;
+}
+
+pub fn resolve_dependencies(pkg_name: &str) -> Vec<String> {
+    // TODO
+    let mut result = Vec::<String>::new();
+    result.push(pkg_name.to_string());
+    return result;
+}
+
+pub fn remove(pkg_name: &str) -> bool {
+    // TODO
+    return pkg_name != "" && false;
+}
+
+pub fn list_packages() -> Vec<String> {
+    // TODO
+    return Vec::<String>::new();
+}
+
+// remote package providers
+
+pub fn add_server(server_name: &str) -> bool {
+    // TODO
+    return server_name != "" && false;
+}
+
+pub fn remove_server(server_name: &str) -> bool {
+    // TODO
+    return server_name != "" && false;
+}
+
+pub fn list_servers() -> Vec<String> {
+    // TODO
+    return Vec::<String>::new();
 }
diff --git a/src/tests.rs b/src/tests.rs
new file mode 100644
index 0000000..89a1274
--- /dev/null
+++ b/src/tests.rs
@@ -0,0 +1,67 @@
+use super::*;
+
+const CONFIG_DIR: &str = "./test";
+
+#[test]
+fn it_works() {
+    assert_eq!(2 + 2, 4);
+}
+
+#[test]
+fn lib_test_init() {
+    assert_eq!(init(CONFIG_DIR), true);
+}
+
+#[test]
+fn pkg_test_install() {
+    assert_eq!(init(CONFIG_DIR), true);
+    assert_eq!(install("test"), true);
+}
+
+#[test]
+fn pkg_test_update_all() {
+    assert_eq!(init(CONFIG_DIR), true);
+    assert_eq!(update_all(), true);
+}
+
+#[test]
+fn pkg_test_update() {
+    assert_eq!(init(CONFIG_DIR), true);
+    assert_eq!(update("test"), true);
+}
+
+#[test]
+fn pkg_test_resolve_dependencies() {
+    assert_eq!(init(CONFIG_DIR), true);
+    assert_ne!(resolve_dependencies("test").len(), 0);
+}
+
+#[test]
+fn pkg_test_remove() {
+    assert_eq!(init(CONFIG_DIR), true);
+    assert_eq!(remove("test"), true);
+}
+
+#[test]
+fn pkg_test_list() {
+    assert_eq!(init(CONFIG_DIR), true);
+    assert_ne!(list_packages().len(), 0);
+}
+
+#[test]
+fn server_test_add() {
+    assert_eq!(init(CONFIG_DIR), true);
+    assert_eq!(add_server("http://test.org"), true);
+}
+
+#[test]
+fn server_test_remove() {
+    assert_eq!(init(CONFIG_DIR), true);
+    assert_eq!(remove_server("http://test.org"), true);
+}
+
+#[test]
+fn server_test_list() {
+    assert_eq!(init(CONFIG_DIR), true);
+    assert_ne!(list_servers().len(), 0);
+}