## Tests env command for clearing the environment

## Check and make sure preset environment variable were set in lit.cfg.
#
# RUN: env | FileCheck --check-prefix=CHECK-ENV-PRESET %s
## Check clearing the entire environment.
#
# RUN: env -i | FileCheck --check-prefix=CHECK-ENV-CLEAR-1 %s
#
## Check setting a variable in a clear environment.
#
# RUN: env -i BAZ=3 | FileCheck --check-prefix=CHECK-ENV-ONE-1 %s
#

# CHECK-ENV-PRESET: BAR = 2
# CHECK-ENV-PRESET: FOO = 1

# CHECK-ENV-CLEAR-NOT: BAR
# CHECK-ENV-CLEAR-NOT: FOO

# CHECK-ENV-ONE-NOT: BAR
# CHECK-ENV-ONE: BAZ = 3
# CHECK-ENV-ONE-NOT: FOO