func makeSnap(c *C, manifest, data string) *Snap {
tmp := c.MkDir()
err := os.MkdirAll(filepath.Join(tmp, "meta"), 0755)
// our regular snap.yaml
err = ioutil.WriteFile(filepath.Join(tmp, "meta", "snap.yaml"), []byte(manifest), 0644)
c.Assert(err, IsNil)
// some data
err = ioutil.WriteFile(filepath.Join(tmp, "data.bin"), []byte(data), 0644)
c.Assert(err, IsNil)
// build it
cur, _ := os.Getwd()
snap := New(filepath.Join(cur, "foo.snap"))
err = snap.Build(tmp)
c.Assert(err, IsNil)
return snap
}
func (s *SquashfsTestSuite) TestBuild(c *C) {
buildDir := c.MkDir()
err := os.MkdirAll(filepath.Join(buildDir, "/random/dir"), 0755)
c.Assert(err, IsNil)
err = ioutil.WriteFile(filepath.Join(buildDir, "data.bin"), []byte("data"), 0644)
c.Assert(err, IsNil)
snap := New(filepath.Join(c.MkDir(), "foo.snap"))
err = snap.Build(buildDir)
c.Assert(err, IsNil)
// unsquashfs writes a funny header like:
// "Parallel unsquashfs: Using 1 processor"
// "1 inodes (1 blocks) to write"
outputWithHeader, err := exec.Command("unsquashfs", "-n", "-l", snap.path).Output()
c.Assert(err, IsNil)
split := strings.Split(string(outputWithHeader), "\n")
output := strings.Join(split[3:], "\n")
c.Assert(string(output), Equals, `squashfs-root
squashfs-root/data.bin
squashfs-root/random
squashfs-root/random/dir
`)
}