Use configuration file for tests instead of hardcoded kernel/qcow2 path

README.md

@@ -1,2 +1,43 @@
 # go-qemu-kernel
+
 Qemu wrapper for kernel-related CI tasks
+
+## Usage
+
+TODO
+
+## Development
+
+    $ go get github.com/jollheef/go-qemu-kernel
+
+### Generate root image
+
+First of all we need to generate rootfs for run qemu.
+
+#### GNU/Linux
+
+    $ sudo apt install -y debootstrap qemu
+    $ sudo qemu-debian-img generate sid.img
+
+#### macOS
+
+Note: qemu on macOS since v2.12 (24 April 2018) supports Hypervisor.framework.
+
+    $ brew install qemu
+
+Because it's a very complicated to debootstrap qemu images from macOS,
+preferred way is to use Vagrant with any hypervisor.
+
+    $ brew cask install vagrant
+    $ cd $GOPATH/src/github.com/jollheef/go-qemu-kernel/tools/qemu-debian-image
+    $ vagrant up && vagrant destroy -f
+
+bionic.img and bionic-vmlinuz will be created in current directory.
+
+### Fill configuration file
+
+    $ $EDITOR $GOPATH/src/github.com/jollheef/go-qemu-kernel/test.config.go
+
+### Run tests
+
+    $ go test -v

qemu-kernel_test.go

@@ -42,8 +42,7 @@ func TestQemuSystemNew(t *testing.T) {
 }
 
 func TestQemuSystemStart(t *testing.T) {
-	// TODO check kernel path on other distros than gentoo
-	kernel := Kernel{Name: "Host kernel", Path: "/boot/vmlinuz-4.18.8"}
+	kernel := Kernel{Name: "Host kernel", Path: testConfigVmlinuz}
 	qemu, err := NewQemuSystem(X86_64, kernel, "/bin/sh")
 	if err != nil {
 		t.Fatal(err)
@@ -66,10 +65,8 @@ func TestGetFreeAddrPort(t *testing.T) {
 }
 
 func startTestQemu() (q *QemuSystem, err error) {
-	// FIXME hardcoded kernel path
-	kernel := Kernel{Name: "Host kernel", Path: "/boot/vmlinuz-4.18.8"}
-	// FIXME hardcoded qcow2 path
-	q, err = NewQemuSystem(X86_64, kernel, "/home/user/qemu/sid.img")
+	kernel := Kernel{Name: "Host kernel", Path: testConfigVmlinuz}
+	q, err = NewQemuSystem(X86_64, kernel, testConfigRootfs)
 	if err != nil {
 		return
 	}

test.config.go

@@ -0,0 +1,8 @@
+// Copyright 2018 Mikhail Klementev. All rights reserved.
+// Use of this source code is governed by a GPLv3 license
+// (or later) that can be found in the LICENSE file.
+
+package qemukernel
+
+const testConfigVmlinuz = "tools/qemu-debian-img/vmlinuz-bionic"
+const testConfigRootfs = "tools/qemu-debian-img/bionic.img"