Added encode/decode tests for postgrex extension

README.md

@@ -1,4 +1,14 @@
-Isn
-===
+# Isn
 
-** TODO: Add description **
+Add support for the `isn` module in Postgrex/Ecto.
+
+This module adds the following ecto types:
+
+* Isn.ISBN
+* Isn.ISBN13
+* Isn.ISMN
+* Isn.ISMN13
+* Isn.ISSN
+* Isn.ISSN13
+* Isn.EAN13
+* Isn.UPC

test/isn/extension_test.exs

@@ -0,0 +1,53 @@
+defmodule IsnExtensionTest do
+  use ExUnit.Case, async: true
+  import Isn.TestHelper
+  alias Postgrex.Connection, as: P
+
+  setup do
+    {:ok, pid} = P.start_link(
+      database: "isn_test",
+      extensions: [{Isn.Extension, {}}])
+    {:ok, [pid: pid]}
+  end
+
+  test "encode and decode isbn", context do
+    assert [{"1-937785-58-0"}] =
+           query(context[:pid], "SELECT $1::isbn", ['1937785580'])
+  end
+
+  test "encode and decode isbn13", context do
+    assert [{"978-1-937785-58-1"}] =
+           query(context[:pid], "SELECT $1::isbn13", ['9781937785581'])
+  end
+
+  test "encode and decode ismn", context do
+    assert [{"M-060-11561-5"}] =
+           query(context[:pid], "SELECT $1::ismn", ['9790060115615'])
+  end
+
+  test "encode and decode ismn13", context do
+    assert [{"979-0-060-11561-5"}] =
+           query(context[:pid], "SELECT $1::ismn13", ['9790060115615'])
+  end
+
+  test "encode and decode issn", context do
+    assert [{"1436-4522"}] =
+           query(context[:pid], "SELECT $1::issn", ['14364522'])
+  end
+
+  test "encode and decode issn13", context do
+    assert [{"977-1436-452-00-8"}] =
+           query(context[:pid], "SELECT issn13(issn('1436-4522'))", [])
+  end
+
+  test "encode and decode ean13", context do
+    assert [{"022-035648348-1"}] =
+           query(context[:pid], "SELECT $1::ean13", ["0220356483481"])
+  end
+
+  test "encode and decode upc", context do
+    assert [{"220356483481"}] =
+           query(context[:pid], "SELECT $1::upc", ["220356483481"])
+  end
+end
+

test/isn/isbn13_test.exs

@@ -0,0 +1,7 @@
+defmodule Isn.ISBN13Test do
+  use ExUnit.Case
+
+  # dump
+  # cast
+  # load
+end

test/isn_test.exs

@@ -1,8 +0,0 @@
-defmodule IsnTest do
-  use ExUnit.Case
-  doctest Isn
-
-  test "the truth" do
-    assert 1 + 1 == 2
-  end
-end

test/test_helper.exs

@@ -1 +1,26 @@
 ExUnit.start()
+
+{:ok, pid} = Postgrex.Connection.start_link(
+  hostname: "localhost",
+  database: "postgres"
+)
+
+Postgrex.Connection.query!(pid, "DROP DATABASE IF EXISTS isn_test;", [])
+Postgrex.Connection.query!(pid, "CREATE DATABASE isn_test;", [])
+{:ok, pid} = Postgrex.Connection.start_link(
+  hostname: "localhost",
+  database: "isn_test"
+)
+Postgrex.Connection.query!(pid, "CREATE EXTENSION isn;", [])
+
+defmodule Isn.TestHelper do
+  defmacro query(pid, statement, params) do
+    quote bind_quoted: [pid: pid, statement: statement, params: params] do
+      case Postgrex.Connection.query(pid, statement, params, []) do
+        {:ok, %Postgrex.Result{rows: nil}} -> :ok
+        {:ok, %Postgrex.Result{rows: rows}} -> rows
+        {:error, %Postgrex.Error{} = err} -> err
+      end
+    end
+  end
+end