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(define-module (test let-env)
:use-module (srfi srfi-64)
:use-module (srfi srfi-64 test-error)
:use-module (srfi srfi-88)
:use-module ((guile) :select (setenv getenv))
:use-module ((hnh util env) :select (let-env)))
(setenv "CALP_TEST_ENV" "1")
(test-equal
"Ensure we have set value beforehand"
"1"
(getenv "CALP_TEST_ENV"))
(let-env
((CALP_TEST_ENV "2"))
(test-equal
"Test our local override"
"2"
(getenv "CALP_TEST_ENV")))
(test-equal
"Test that we have returned"
"1"
(getenv "CALP_TEST_ENV"))
(catch 'test-error
(lambda ()
(let-env
((CALP_TEST_ENV "2"))
(test-equal
"Test our local override again"
"2"
(getenv "CALP_TEST_ENV"))
(throw 'test-error)))
list)
(test-equal
"Test restoration after non-local exit"
"1"
(getenv "CALP_TEST_ENV"))
(test-group "Unsetting environment"
(setenv "TEST" "A")
(let-env ((TEST #f))
(test-assert (not (getenv "TEST"))))
(test-equal "A" (getenv "TEST")))
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