add integration tests for net

Author: leongross

testdata/net.go

@@ -0,0 +1,82 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"net"
+	"strconv"
+	"time"
+)
+
+// Test golang network package integration for tinygo.
+// This test is not exhaustive and only tests the basic functionality of the package.
+
+const (
+	TEST_PORT = 9000
+)
+
+var (
+	testsPassed uint
+	err         error
+	sendBuf     = &bytes.Buffer{}
+	recvBuf     = &bytes.Buffer{}
+)
+
+var (
+	testDialListenData = []byte("Hello tinygo :)")
+)
+
+func TestDialListen() {
+	// listen thread
+	go func() {
+		ln, err := net.Listen("tcp", ":"+strconv.FormatInt(TEST_PORT, 10))
+		if err != nil {
+			fmt.Printf("error listening: %v\n", err)
+			return
+		}
+
+		conn, err := ln.Accept()
+		if err != nil {
+			fmt.Printf("error accepting: %v\n", err)
+			return
+		}
+
+		recvBuf.Reset()
+		_, err = conn.Read(recvBuf.Bytes())
+		if err != nil {
+			fmt.Printf("error reading: %v\n", err)
+			return
+		}
+
+		// TODO: this is racy
+		if recvBuf.String() != string(testDialListenData) {
+			fmt.Printf("error: received data does not match sent data: '%s' != '%s'\n", recvBuf.String(), string(testDialListenData))
+			return
+		}
+		conn.Close()
+
+		return
+	}()
+
+	// hacky way to wait for the listener to start
+	time.Sleep(1 * time.Second)
+
+	sendBuf.Reset()
+	fmt.Fprint(sendBuf, testDialListenData)
+	conn, err := net.Dial("tcp4", "127.0.0.1:"+strconv.FormatInt(TEST_PORT, 10))
+	if err != nil {
+		fmt.Printf("error dialing: %v\n", err)
+		return
+	}
+
+	if _, err = conn.Write(sendBuf.Bytes()); err != nil {
+		fmt.Printf("error writing: %v\n", err)
+		return
+	}
+}
+
+func main() {
+	fmt.Printf("test: net start\n")
+	TestDialListen()
+	fmt.Printf("test: net end\n")
+}

testdata/net.txt

@@ -0,0 +1,2 @@
+test: net start
+test: net end