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// Copyright 2012, 2013 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package testing
import (
gc "launchpad.net/gocheck"
"launchpad.net/juju-core/environs/config"
"launchpad.net/juju-core/state"
coretesting "launchpad.net/juju-core/testing"
)
// ChangeEnvironConfig applies the given change function
// to the attributes from st.EnvironConfig and
// sets the state's environment configuration to the result.
func ChangeEnvironConfig(c *gc.C, st *state.State, change func(coretesting.Attrs) coretesting.Attrs) {
cfg, err := st.EnvironConfig()
c.Assert(err, gc.IsNil)
newCfg, err := config.New(config.NoDefaults, change(cfg.AllAttrs()))
c.Assert(err, gc.IsNil)
err = st.SetEnvironConfig(newCfg)
c.Assert(err, gc.IsNil)
}
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