Add test

README.md

@@ -46,7 +46,7 @@ CloudVision.analyze("/Users/yourname/Images/cat.jpg", features: [:image_properti
 CloudVision.analyze("cat.jpg", from: :storage, features: [:image_properties])
 ```
 
-### Available features(you can pass as many as you want(`features: [...]`)):
+### Available features (you can pass as many as you want(`features: [...]`)):
 ```elixir
 [:label, :logo, :text, :face, :landmark, :safe_search, :image_properties]
 # and the default

config/config.exs

@@ -27,4 +27,9 @@ use Mix.Config
 # Configuration from the imported file will override the ones defined
 # here (which is why it is important to import them last).
 #
-#     import_config "#{Mix.env}.exs"
+
+
+config :goth, json: "config/dummy_creds.json" |> Path.expand |> File.read!
+config :cloud_vision, gcsUri: "dummy.appspot.com"
+
+import_config "#{Mix.env}.exs"

config/dev.exs

@@ -0,0 +1 @@
+use Mix.Config

config/dummy_creds.json

@@ -0,0 +1,12 @@
+{
+  "type": "service_account",
+  "project_id": "dummy_project_id",
+  "private_key_id": "dummy_key_id",
+  "private_key": "-----BEGIN PRIVATE KEY-----\ndummy_private_key\n-----END PRIVATE KEY-----\n",
+  "client_email": "dummy_email@dummy_project_id.iam.gserviceaccount.com",
+  "client_id": "dummy_client_id",
+  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
+  "token_uri": "https://accounts.google.com/o/oauth2/token",
+  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
+  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/google-cloud-storage%40dummy_project_id.iam.gserviceaccount.com"
+}

config/test.exs

@@ -0,0 +1 @@
+use Mix.Config

lib/cloud_vision.ex

@@ -19,7 +19,13 @@ defmodule CloudVision do
     end
   end
 
-  defp build_params(img_path, opts), do:
+  @doc """
+  iex> CloudVision.build_params("cat.jpg", from: :storage, features: [:image_properties])
+  %{requests: [%{features: [%{type: "IMAGE_PROPERTIES"}],
+     image: %{source: %{gcsImageUri: "gs://dummy.appspot.com/cat.jpg"}}}]}
+  """
+
+  def build_params(img_path, opts), do:
     %{requests: [%{image: build_image(img_path, opts[:from]), features: build_features(opts[:features])}]}
 
   defp build_image(img_path, nil), do: build_image(img_path, :local)

test/cloud_vision_test.exs

@@ -1,8 +1,4 @@
 defmodule CloudVisionTest do
   use ExUnit.Case
   doctest CloudVision
-
-  test "the truth" do
-    assert 1 + 1 == 2
-  end
 end