--- /dev/null
+Test recursing into parent .env files.
+
+ $ source $TESTDIR/setup.sh
+
+Setup env actions / output.
+
+ $ AUTOENV_LOOK_UPWARDS=1
+
+Create env files in root dir.
+
+ $ echo 'echo ENTERED_root: PWD:${PWD:t} from:${_autoenv_from_dir:t} to:${_autoenv_to_dir:t}' > .env
+ $ echo 'echo LEFT_root: PWD:${PWD:t} from:${_autoenv_from_dir:t} to:${_autoenv_to_dir:t}' > .env.leave
+ $ test_autoenv_auth_env_files
+
+Create env files in sub dir.
+
+ $ mkdir -p sub/sub2
+ $ cd sub
+ ENTERED_root: PWD:sub from:recurse-upwards.t to:sub
+
+ $ echo 'echo ENTERED_sub: PWD:${PWD:t} from:${_autoenv_from_dir:t} to:${_autoenv_to_dir:t}' > .env
+ $ echo 'echo LEFT_sub: PWD:${PWD:t} from:${_autoenv_from_dir:t} to:${_autoenv_to_dir:t}' > .env.leave
+ $ test_autoenv_auth_env_files
+
+The actual tests.
+
+ $ cd .
+ ENTERED_sub: PWD:sub from:sub to:sub
+
+ $ cd ..
+ LEFT_sub: PWD:sub from:sub to:recurse-upwards.t
+
+ $ cd sub/sub2
+ ENTERED_sub: PWD:sub2 from:recurse-upwards.t to:sub2
+
+ $ cd ..
+
+Changing the .env file should re-source it.
+
+ $ echo 'echo ENTER2' >> .env
+
+Set timestamp of auth file into the past, so it gets seen as new below.
+
+ $ touch -t 201401010101 .env
+
+ $ test_autoenv_auth_env_files
+ $ cd .
+ ENTERED_sub: PWD:sub from:sub to:sub
+ ENTER2
+
+Add sub/sub2/.env file, with a call to autoenv_source_parent.
+
+ $ echo -e "echo autoenv_source_parent_from_sub2:\nautoenv_source_parent\necho done_sub2\n" > sub2/.env
+ $ test_autoenv_add_to_env sub2/.env
+ $ cd sub2
+ autoenv_source_parent_from_sub2:
+ ENTERED_sub: PWD:sub from:sub to:sub2
+ ENTER2
+ done_sub2
+
+Move sub/.env away, now the root .env file should get sourced.
+
+ $ mv ../.env ../.env.out
+ $ touch -t 201401010102 .env
+ $ cd .
+ autoenv_source_parent_from_sub2:
+ ENTERED_root: PWD:recurse-upwards.t from:sub2 to:sub2
+ done_sub2
+ $ mv ../.env.out ../.env
+
+Prepend call to autoenv_source_parent to sub/.env file.
+
+ $ cd ..
+ $ echo -e "echo autoenv_source_parent_from_sub:\nautoenv_source_parent\n$(< .env)\necho done_sub" > .env
+ $ touch -t 201401010103 .env
+ $ test_autoenv_auth_env_files
+
+ $ cd .
+ autoenv_source_parent_from_sub:
+ ENTERED_root: PWD:recurse-upwards.t from:sub to:sub
+ ENTERED_sub: PWD:sub from:sub to:sub
+ ENTER2
+ done_sub
+
+
+Add sub/sub2/.env file.
+
+ $ echo -e "echo autoenv_source_parent_from_sub2:\nautoenv_source_parent\necho done_sub2\n" > sub2/.env
+ $ test_autoenv_add_to_env sub2/.env
+ $ cd sub2
+ autoenv_source_parent_from_sub2:
+ autoenv_source_parent_from_sub:
+ ENTERED_root: PWD:recurse-upwards.t from:sub to:sub
+ ENTERED_sub: PWD:sub from:sub to:sub
+ ENTER2
+ done_sub
+ done_sub2
+
+Go to root.
+
+ $ cd ../..
+ LEFT_sub: PWD:sub from:sub2 to:recurse-upwards.t
+ ENTERED_root: PWD:recurse-upwards.t from:sub2 to:recurse-upwards.t
+
+
+Changing the root .env should trigger re-authentication via autoenv_source_parent.
+
+First, let's answer "no".
+
+ $ echo "echo NEW" > .env
+ $ _autoenv_read_answer() { echo 'n' }
+ $ cd sub
+ autoenv_source_parent_from_sub:
+ Attempting to load unauthorized env file: /tmp/cramtests-*/recurse-upwards.t/.env (glob)
+
+ **********************************************
+
+ echo NEW
+
+ **********************************************
+
+ Would you like to authorize it? [y/N]
+ ENTERED_sub: PWD:sub from:recurse-upwards.t to:sub
+ ENTER2
+ done_sub
+
+Now with "yes".
+This currently does not trigger re-execution of the .env file.
+
+ $ _autoenv_read_answer() { echo 'y' }
+ $ cd .
+
+Touching the .env file will now source the parent env file.
+
+ $ touch -t 201401010104 .env
+ $ cd .
+ autoenv_source_parent_from_sub:
+ Attempting to load unauthorized env file: /tmp/cramtests-*/recurse-upwards.t/.env (glob)
+
+ **********************************************
+
+ echo NEW
+
+ **********************************************
+
+ Would you like to authorize it? [y/N]
+ NEW
+ ENTERED_sub: PWD:sub from:sub to:sub
+ ENTER2
+ done_sub