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Fix flaky test TestSuccessfulDownload 

One of the things this test checks is that the progress indicator
completes for each download. Some progress messages may be lost because
only one message is buffered for each download, but the last progress
message is guaranteed not to be lost. The test therefore checks for a
10/10 progress indication.

However, the assumption that this is the last progress message to be
sent is incorrect. The last message is actually "Pull complete". So
check for this instead.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
This commit is contained in:
Aaron Lehmann 2016-01-11 09:46:34 -08:00
parent 2892de760f
commit 0757a52737
1 changed files with 6 additions and 10 deletions
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16
distribution/xfer/download_test.go
View File

@ -250,15 +250,11 @@ func TestSuccessfulDownload(t *testing.T) {
progressChan := make(chan progress.Progress)
progressDone := make(chan struct{})
receivedProgress := make(map[string]int64)
receivedProgress := make(map[string]progress.Progress)
go func() {
for p := range progressChan {
if p.Action == "Downloading" {
receivedProgress[p.ID] = p.Current
} else if p.Action == "Already exists" {
receivedProgress[p.ID] = -1
}
receivedProgress[p.ID] = p
}
close(progressDone)
}()
@ -293,11 +289,11 @@ func TestSuccessfulDownload(t *testing.T) {
descriptor := d.(*mockDownloadDescriptor)
if descriptor.diffID != "" {
if receivedProgress[d.ID()] != -1 {
t.Fatalf("did not get 'already exists' message for %v", d.ID())
if receivedProgress[d.ID()].Action != "Already exists" {
t.Fatalf("did not get 'Already exists' message for %v", d.ID())
}
} else if receivedProgress[d.ID()] != 10 {
t.Fatalf("missing or wrong progress output for %v (got: %d)", d.ID(), receivedProgress[d.ID()])
} else if receivedProgress[d.ID()].Action != "Pull complete" {
t.Fatalf("did not get 'Pull complete' message for %v", d.ID())
}
if rootFS.DiffIDs[i] != descriptor.expectedDiffID {