From f80d50adbddf55a043dfcab5b47d7c1e22749b7d Mon Sep 17 00:00:00 2001
From: Chris <ccbrown112@gmail.com>
Date: Wed, 16 Aug 2017 17:23:38 -0500
Subject: PLT-7407: Back-end plugin mechanism (#7177)

* begin backend plugin wip

* flesh out rpcplugin. everything done except for minor supervisor stubs

* done with basic plugin infrastructure

* simplify tests

* remove unused test lines
---
 plugin/rpcplugin/process_test.go | 64 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 plugin/rpcplugin/process_test.go

(limited to 'plugin/rpcplugin/process_test.go')

diff --git a/plugin/rpcplugin/process_test.go b/plugin/rpcplugin/process_test.go
new file mode 100644
index 000000000..b7984ad0a
--- /dev/null
+++ b/plugin/rpcplugin/process_test.go
@@ -0,0 +1,64 @@
+package rpcplugin
+
+import (
+	"context"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func compileGo(t *testing.T, sourceCode, outputPath string) {
+	dir, err := ioutil.TempDir(".", "")
+	require.NoError(t, err)
+	defer os.RemoveAll(dir)
+	require.NoError(t, ioutil.WriteFile(filepath.Join(dir, "main.go"), []byte(sourceCode), 0600))
+	cmd := exec.Command("go", "build", "-o", outputPath, "main.go")
+	cmd.Dir = dir
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	require.NoError(t, cmd.Run())
+}
+
+func TestProcess(t *testing.T) {
+	dir, err := ioutil.TempDir("", "")
+	require.NoError(t, err)
+	defer os.RemoveAll(dir)
+
+	ping := filepath.Join(dir, "ping")
+	compileGo(t, `
+		package main
+
+		import (
+			"log"
+
+			"github.com/mattermost/platform/plugin/rpcplugin"
+		)
+
+		func main() {
+			ipc, err := rpcplugin.InheritedProcessIPC()
+			if err != nil {
+				log.Fatal("unable to get inherited ipc")
+			}
+			defer ipc.Close()
+			_, err = ipc.Write([]byte("ping"))
+			if err != nil {
+				log.Fatal("unable to write to ipc")
+			}
+		}
+	`, ping)
+
+	p, ipc, err := NewProcess(context.Background(), ping)
+	require.NoError(t, err)
+	defer ipc.Close()
+	b := make([]byte, 10)
+	n, err := ipc.Read(b)
+	require.NoError(t, err)
+	assert.Equal(t, 4, n)
+	assert.Equal(t, "ping", string(b[:4]))
+	require.NoError(t, p.Wait())
+}
-- 
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