Add GitHub Actions for CI (#148)

Author: whatyouhide

.github/workflows/main.yml

@@ -0,0 +1,46 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    name: Test (Elixir ${{matrix.elixir}} | Erlang/OTP ${{matrix.otp}})
+    runs-on: ubuntu-16.04
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - otp: 23.0
+            elixir: 1.11.2
+            lint: true
+          - otp: 23.0
+            elixir: 1.10.3
+          - otp: 22.3
+            elixir: 1.10.3
+          - otp: 22.1
+            elixir: 1.9.4
+          - otp: 21.3
+            elixir: 1.8.2
+    env:
+      MIX_ENV: test
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install OTP and Elixir
+        uses: erlef/setup-elixir@v1
+        with:
+          otp-version: ${{matrix.otp}}
+          elixir-version: ${{matrix.elixir}}
+
+      - name: Install dependencies
+        run: mix deps.get --only test
+
+      - name: Check no unused dependencies
+        run: mix deps.get && mix deps.unlock --check-unused
+        if: ${{matrix.lint}}
+
+      - name: Compile dependencies
+        run: mix deps.compile
+
+      - name: Run tests
+        run: mix test --trace

priv/templates/enum.ex.eex

@@ -1,7 +1,7 @@
 defmodule <%= name %> do
   @moduledoc false
   use Protobuf<%= options %>
-  
+
   <%= type %>
 
   <%= if not is_nil(desc) do %>
@@ -13,7 +13,6 @@ defmodule <%= name %> do
   end
   <% end %>
 
-<%= Enum.map fields, fn(field) -> %>
-  field <%= field %>
+<%= Enum.map fields, fn(field) -> %>  field <%= field %>
 <% end %>
 end

test/protobuf/protoc/generator/enum_test.exs

@@ -21,6 +21,6 @@ defmodule Protobuf.Protoc.Generator.EnumTest do
     assert msg =~ "use Protobuf, enum: true\n"
     assert msg =~ "@type t :: integer | :A | :B\n"
     refute msg =~ "defstruct "
-    assert msg =~ "field :A, 0\n\n  field :B, 1\n"
+    assert msg =~ "field :A, 0\n  field :B, 1\n"
   end
 end

test/protobuf/protoc/generator/message_test.exs

@@ -391,7 +391,7 @@ defmodule Protobuf.Protoc.Generator.MessageTest do
     {[[msg]], _} = Generator.generate(ctx, desc)
     assert msg =~ "defmodule Foo.Nested.EnumFoo do\n"
     assert msg =~ "use Protobuf, enum: true\n"
-    assert msg =~ "field :a, 0\n\n  field :b, 1\n"
+    assert msg =~ "field :a, 0\n  field :b, 1\n"
   end
 
   test "generate/2 supports oneof" do