Implement monger.core/connect and monger.core/get-db

src/monger/core.clj

@@ -1 +1,35 @@
-(ns monger.core)
+(ns monger.core
+  (:import (com.mongodb Mongo DB))
+  )
+
+;;
+;; Defaults
+;;
+
+(def ^:dynamic *default-host* "localhost")
+(def ^:dynamic *default-port* 27017)
+
+
+;;
+;; Protocols
+;;
+
+
+
+
+;;
+;; API
+;;
+
+(defn ^Mongo connect
+  "Connects to MongoDB"
+  ([]
+     (Mongo.))
+  ([{ :keys [host port] :or { host *default-host*, port *default-port* }}]
+     (Mongo. host port)))
+
+(defn ^DB get-db
+  "Get database reference by name"
+  [^Mongo connection, ^String name]
+  (.getDB connection name))
+

test/monger/test/core.clj

@@ -1,6 +1,29 @@
 (ns monger.test.core
-  (:use [monger.core])
+  (:require [monger.core])
+  (:import (com.mongodb Mongo DB))
   (:use [clojure.test]))
 
-(deftest replace-me ;; FIXME: write
-  (is false "No tests have been written."))
+(deftest connect-to-mongo-with-default-host-and-port
+  (let [connection (monger.core/connect)]
+    (is (instance? com.mongodb.Mongo connection))))
+
+
+(deftest connect-to-mongo-with-default-host-and-explicit-port
+  (let [connection (monger.core/connect { :port 27017 })]
+    (is (instance? com.mongodb.Mongo connection))))
+
+
+(deftest connect-to-mongo-with-default-port-and-explicit-host
+  (let [connection (monger.core/connect { :host "127.0.0.1" })]
+    (is (instance? com.mongodb.Mongo connection))))
+
+
+(deftest get-database
+  (let [connection (monger.core/connect)
+        db         (monger.core/get-db connection "monger-test")]
+    (is (instance? com.mongodb.DB db))))
+
+;; (deftest get-database-with-valid-credentials
+;;   (let [connection (monger.core/connect)
+;;         db         (monger.core/get-db connection "monger-test" "monger" "test_password")]
+;;     (is (instance? com.mongodb.DB db))))