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1## Tests env command for clearing the environment2 3## Check and make sure preset environment variable were set in lit.cfg.4#5# RUN: env | FileCheck --check-prefix=CHECK-ENV-PRESET %s6## Check clearing the entire environment.7#8# RUN: env -i | FileCheck --check-prefix=CHECK-ENV-CLEAR-1 %s9#10## Check setting a variable in a clear environment.11#12# RUN: env -i BAZ=3 | FileCheck --check-prefix=CHECK-ENV-ONE-1 %s13#14 15# CHECK-ENV-PRESET: BAR = 216# CHECK-ENV-PRESET: FOO = 117 18# CHECK-ENV-CLEAR-NOT: BAR19# CHECK-ENV-CLEAR-NOT: FOO20 21# CHECK-ENV-ONE-NOT: BAR22# CHECK-ENV-ONE: BAZ = 323# CHECK-ENV-ONE-NOT: FOO24