From e557734c832731a87fcb3fc327926b0c926a2013 Mon Sep 17 00:00:00 2001
From: saxon <saxon.milton@gmail.com>
Date: Tue, 22 Jan 2019 10:45:36 +1030
Subject: [PATCH] av/stream/flac: added writeseeker tests

---
 stream/flac/flac_test.go | 44 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/stream/flac/flac_test.go b/stream/flac/flac_test.go
index d69c0494..9537d682 100644
--- a/stream/flac/flac_test.go
+++ b/stream/flac/flac_test.go
@@ -27,6 +27,7 @@ LICENSE
 package flac
 
 import (
+	"io"
 	"io/ioutil"
 	"os"
 	"testing"
@@ -37,6 +38,49 @@ const (
 	outFile  = "testOut.wav"
 )
 
+func TestWriteSeekerWrite(t *testing.T) {
+	writerSeeker := &writeSeeker{}
+	var ws io.WriteSeeker = writerSeeker
+
+	ws.Write([]byte("hello"))
+	if string(writerSeeker.buf) != "hello" {
+		t.Fail()
+	}
+
+	ws.Write([]byte(" world"))
+	if string(writerSeeker.buf) != "hello world" {
+		t.Fail()
+	}
+
+}
+
+func TestWriteSeekerSeek(t *testing.T) {
+	writerSeeker := &writeSeeker{}
+	var ws io.WriteSeeker = writerSeeker
+
+	ws.Write([]byte("hello"))
+	if string(writerSeeker.buf) != "hello" {
+		t.Fail()
+	}
+
+	ws.Write([]byte(" world"))
+	if string(writerSeeker.buf) != "hello world" {
+		t.Fail()
+	}
+
+	ws.Seek(-2, io.SeekEnd)
+	ws.Write([]byte("k!"))
+	if string(writerSeeker.buf) != "hello work!" {
+		t.Fail()
+	}
+
+	ws.Seek(6, io.SeekStart)
+	ws.Write([]byte("gopher"))
+	if string(writerSeeker.buf) != "hello gopher" {
+		t.Fail()
+	}
+}
+
 func TestDecodeFlac(t *testing.T) {
 	b, err := ioutil.ReadFile(testFile)
 	if err != nil {