// TestConfigurationRead tests the successful reading of a configuration.
func TestConfigurationRead(t *testing.T) {
assert := audit.NewTestingAssertion(t, true)
env := cells.NewEnvironment("configuration-read")
defer env.Stop()
tempDir, filename := createConfigurationFile(assert, "{config {foo 42}}")
defer tempDir.Restore()
sigc := audit.MakeSigChan()
spf := func(ctx cells.Context, event cells.Event) error {
if event.Topic() == behaviors.ConfigurationTopic {
config := behaviors.Configuration(event)
v, err := config.At("foo").Value()
assert.Nil(err)
assert.Equal(v, "42")
sigc <- true
}
return nil
}
env.StartCell("configurator", behaviors.NewConfiguratorBehavior(nil))
env.StartCell("simple", behaviors.NewSimpleProcessorBehavior(spf))
env.Subscribe("configurator", "simple")
pvs := cells.PayloadValues{
behaviors.ConfigurationFilenamePayload: filename,
}
env.EmitNew("configurator", behaviors.ReadConfigurationTopic, pvs, nil)
assert.Wait(sigc, true, 100*time.Millisecond)
}
// TestConfigurationValidation tests the validation of a configuration.
func TestConfigurationValidation(t *testing.T) {
assert := audit.NewTestingAssertion(t, true)
env := cells.NewEnvironment("configuration-validation")
defer env.Stop()
tempDir, filename := createConfigurationFile(assert, "{config {foo 42}}")
defer tempDir.Restore()
sigc := audit.MakeSigChan()
spf := func(ctx cells.Context, event cells.Event) error {
sigc <- true
return nil
}
var key string
cv := func(config configuration.Configuration) error {
_, err := config.At(key).Value()
if err != nil {
sigc <- false
}
return err
}
env.StartCell("configurator", behaviors.NewConfiguratorBehavior(cv))
env.StartCell("simple", behaviors.NewSimpleProcessorBehavior(spf))
env.Subscribe("configurator", "simple")
// First run with success as key has the valid value "foo"
pvs := cells.PayloadValues{
behaviors.ConfigurationFilenamePayload: filename,
}
key = "foo"
env.EmitNew("configurator", behaviors.ReadConfigurationTopic, pvs, nil)
assert.Wait(sigc, true, 100*time.Millisecond)
// Second run also will succeed, even with "bar" as invalid value.
// See definition of validator cv above. But validationError is not
// nil.
key = "bar"
env.EmitNew("configurator", behaviors.ReadConfigurationTopic, pvs, nil)
assert.Wait(sigc, false, 100*time.Millisecond)
}