Add docs for using proxy to README, and add mising test. (#16)

README.md

@@ -226,7 +226,13 @@ The  `-Sdeps-file` option may be used to load a different project file than `dep
 
 ### Proxy environment variables
 
-TODO
+deps.clj supports setting a proxy server via the "standard" environment variables (the lowercase versions are tried first):
+- `http_proxy` or `HTTP_PROXY` for http traffic
+- `https_proxy` or `HTTPs_PROXY` for https traffic
+
+This will set the JVM properties `-Dhttp[s].proxyHost` and `-Dhttp[s].proxyPort`.
+
+The format of the proxy string supported is `http[s]://[username:password@]host:port`. Any username and password info is ignored as not supported by the underlying JVM properties.
 
 ## Developing deps.clj
 

test/borkdude/deps_test.cljc

@@ -22,5 +22,8 @@
        "org.clojure/clojure")))
 
 (deftest jvm-proxy-settings-test
-  ;; TODO:
-  #_(is (= "..." (deps/parse-proxy-info "..."))))
+  (is (= {:host "aHost" :port "1234"} (deps/parse-proxy-info "http://aHost:1234")))
+  (is (= {:host "aHost" :port "1234"} (deps/parse-proxy-info "http://user:pw@aHost:1234")))
+  (is (= {:host "aHost" :port "1234"} (deps/parse-proxy-info "https://aHost:1234")))
+  (is (= {:host "aHost" :port "1234"} (deps/parse-proxy-info "https://user:pw@aHost:1234")))
+  (is (nil? (deps/parse-proxy-info "http://aHost:abc"))))