Backfill tests for #generate_network_env

Signed-off-by: Matthew Boedicker <mboedicker@pivotallabs.com>
Backfill tests for #create_nic_config_spec

Signed-off-by: Matthew Boedicker <mboedicker@pivotallabs.com>
Convert double quotes to single for uninterpolated strings.

Signed-off-by: Matthew Boedicker <mboedicker@pivotallabs.com>
Refactor vsphere cloud to use network paths

Signed-off-by: Matthew Boedicker <mboedicker@pivotallabs.com>
Isolate cli specs from ENV

  * Environment variables that had been set to run BATs
    locally were causing unit test failures in cli specs

Signed-off-by: Matthew Boedicker <mboedicker@pivotallabs.com>