Add support for go test #685

config/default.yml

@@ -1253,6 +1253,12 @@ PrePush:
     required_executable: 'git-lfs'
     install_command: 'brew install git-lfs'
 
+  GoTest:
+    enabled: false
+    description: 'Run go test suite'
+    required_executable: 'go'
+    command: ['go', 'test', './...']
+
   Minitest:
     enabled: false
     description: 'Run Minitest test suite'

lib/overcommit/hook/pre_push/go_test.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+module Overcommit::Hook::PrePush
+  # Runs `go test ./...` command on prepush
+  class GoTest < Base
+    def run
+      result = execute(command)
+      return :pass if result.success?
+
+      output = result.stdout + result.stderr
+      [:fail, output]
+    end
+  end
+end

spec/overcommit/hook/pre_push/go_test_spec.rb

@@ -0,0 +1,66 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Overcommit::Hook::PrePush::GoTest do
+  let(:config)  { Overcommit::ConfigurationLoader.default_configuration }
+  let(:context) { double('context') }
+  subject { described_class.new(config, context) }
+
+  context 'when go test exits successfully' do
+    let(:result) { double('result') }
+
+    before do
+      result.stub(success?: true, stderr: '', stdout: '')
+      subject.stub(:execute).and_return(result)
+    end
+
+    it 'passes' do
+      expect(subject).to pass
+    end
+  end
+
+  context 'when go test exits unsucessfully' do
+    let(:result) { double('result') }
+
+    before do
+      result.stub(:success?).and_return(false)
+      subject.stub(:execute).and_return(result)
+    end
+
+    context 'when go test returns an error' do
+      let(:error_message) { "--- FAIL: Test1 (0.00s)\nFAIL" }
+
+      before do
+        result.stub(:stdout).and_return(error_message)
+        result.stub(:stderr).and_return('')
+      end
+
+      it 'fails' do
+        expect(subject).to fail_hook
+      end
+
+      it 'returns valid message' do
+        message = subject.run.last
+        expect(message).to eq error_message
+      end
+    end
+
+    context 'when a generic error message is written to stderr' do
+      let(:error_message) { 'go: command not found' }
+      before do
+        result.stub(:stdout).and_return('')
+        result.stub(:stderr).and_return(error_message)
+      end
+
+      it 'fails' do
+        expect(subject).to fail_hook
+      end
+
+      it 'returns valid message' do
+        message = subject.run.last
+        expect(message).to eq error_message
+      end
+    end
+  end
+end