func (s *ContextSuite) TestContextDownloadUpToDate(c *gc.C) {
info, reader := newResource(c, s.stub.Stub, "spam", "some data")
content := internal.Content{
Data: reader,
Size: info.Size,
Fingerprint: info.Fingerprint,
}
stub := &stubContext{
internalStub: s.stub,
StubCloser: &filetesting.StubCloser{Stub: s.stub.Stub},
}
stub.ReturnNewContextDirectorySpec = stub
stub.ReturnOpenResource = stub
stub.ReturnResolve = "/var/lib/juju/agents/unit-spam-1/resources/spam/eggs.tgz"
stub.ReturnInfo = info
stub.ReturnContent = content
stub.ReturnIsUpToDate = true
deps := stub
path, err := internal.ContextDownload(deps)
c.Assert(err, jc.ErrorIsNil)
s.stub.CheckCallNames(c,
"NewContextDirectorySpec",
"OpenResource",
"Info",
"Resolve",
"Content",
"IsUpToDate",
"CloseAndLog",
)
c.Check(path, gc.Equals, "/var/lib/juju/agents/unit-spam-1/resources/spam/eggs.tgz")
}
// Download downloads the named resource and returns the path
// to which it was downloaded. If the resource does not exist or has
// not been uploaded yet then errors.NotFound is returned.
//
// Note that the downloaded file is checked for correctness.
func (c *Context) Download(name string) (string, error) {
deps := &contextDeps{
APIClient: c.apiClient,
name: name,
dataDir: c.dataDir,
}
path, err := internal.ContextDownload(deps)
if err != nil {
return "", errors.Trace(err)
}
return path, nil
}