Merge branch '20978-instance-types'

[arvados.git] / lib / dispatchcloud / test / stub_driver.go

diff --git a/lib/dispatchcloud/test/stub_driver.go b/lib/dispatchcloud/test/stub_driver.go
index 6e0b1294875dfc9e50c2794b3b79cdd069c1e5ce..0a74d976063351ba8a3bdff0b35c91d360028c73 100644 (file)
--- a/lib/dispatchcloud/test/stub_driver.go
+++ b/lib/dispatchcloud/test/stub_driver.go
@@ -34,7 +34,10 @@ type StubDriver struct {
        // SetupVM, if set, is called upon creation of each new
        // StubVM. This is the caller's opportunity to customize the
        // VM's error rate and other behaviors.
-       SetupVM func(*StubVM)
+       //
+       // If SetupVM returns an error, that error will be returned to
+       // the caller of Create(), and the new VM will be discarded.
+       SetupVM func(*StubVM) error
 
        // Bugf, if set, is called if a bug is detected in the caller
        // or stub. Typically set to (*check.C)Errorf. If unset,
@@ -152,7 +155,10 @@ func (sis *StubInstanceSet) Create(it arvados.InstanceType, image cloud.ImageID,
                Exec:           svm.Exec,
        }
        if setup := sis.driver.SetupVM; setup != nil {
-               setup(svm)
+               err := setup(svm)
+               if err != nil {
+                       return nil, err
+               }
        }
        sis.servers[svm.id] = svm
        return svm.Instance(), nil
@@ -195,6 +201,12 @@ type RateLimitError struct{ Retry time.Time }
 func (e RateLimitError) Error() string            { return fmt.Sprintf("rate limited until %s", e.Retry) }
 func (e RateLimitError) EarliestRetry() time.Time { return e.Retry }
 
+type CapacityError struct{ InstanceTypeSpecific bool }
+
+func (e CapacityError) Error() string                { return "insufficient capacity" }
+func (e CapacityError) IsCapacityError() bool        { return true }
+func (e CapacityError) IsInstanceTypeSpecific() bool { return e.InstanceTypeSpecific }
+
 // StubVM is a fake server that runs an SSH service. It represents a
 // VM running in a fake cloud.
 //