From e42e4fce9484a860c02ad29ff41eacf976e7f949 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 01:09:04 -0500
Subject: [PATCH 01/24] Add functions for listing names of defined functions
 and variables

---
 mo | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/mo b/mo
index c928d7c..eeb11ed 100755
--- a/mo
+++ b/mo
@@ -1095,6 +1095,54 @@ moUsage() {
 }
 
 
+# Produce a list of all shell function declared by mo, and brought
+# into any shell that had sourced the file. Each name is given on one
+# line of standard output.
+moListFuncs() {
+    cat <<EOF
+mo
+moCallFunction
+moFindEndTag
+moFindString
+moFullTagName
+moGetContent
+moIndentLines
+moIndirect
+moIndirectArray
+moIsArray
+moIsFunction
+moIsStandalone
+moJoin
+moLoadFile
+moLoop
+moParse
+moPartial
+moShow
+moSplit
+moStandaloneAllowed
+moStandaloneDenied
+moTest
+moTestVarSet
+moTrimChars
+moTrimWhitespace
+moUsage
+moListFuncs
+moListVars
+EOF
+}
+
+
+# Produce a list of all shell variables declared by mo, and brought
+# into any shell that had sourced the file. Each name is given on one
+# line of standard output.
+moListVars() {
+    cat <<EOF
+MO_ORIGINAL_COMMAND
+MO_VERSION
+EOF
+}
+
+
 # Save the original command's path for usage later
 MO_ORIGINAL_COMMAND="$(cd "${BASH_SOURCE[0]%/*}" || exit 1; pwd)/${BASH_SOURCE[0]##*/}"
 MO_VERSION="2.2.0"

From 2f382c5efeb3985de4a74ba4a6911ceed78a4a28 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 01:09:19 -0500
Subject: [PATCH 02/24] Add functions for handling defined functions and
 variables

---
 mo | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/mo b/mo
index eeb11ed..38d18bb 100755
--- a/mo
+++ b/mo
@@ -1128,6 +1128,10 @@ moTrimWhitespace
 moUsage
 moListFuncs
 moListVars
+moUnload
+moExport
+moUnexport
+moDeclare
 EOF
 }
 
@@ -1139,13 +1143,63 @@ moListVars() {
     cat <<EOF
 MO_ORIGINAL_COMMAND
 MO_VERSION
+MO_EXPORT
 EOF
 }
 
 
+# Clear all shell functions and variables for names used by mo,
+# restoring the shell to a state as though mo had never been sourced
+# (assuming no naming collisions).
+moUnload() {
+    unset -v $(moListVars)
+    unset -f $(moListFuncs)
+}
+
+
+# Mark for export all shell functions and variables used by mo, such
+# that any child (or descendant) Bash process may call mo as though
+# itself having sourced the file.
+moExport() {
+    export $(moListVars)
+    export -f $(moListFuncs)
+    MO_EXPORT=1
+}
+
+
+# Unmark for export all shell functions and variables used by, such
+# that any new child (or descendant) Bash process would not inherit
+# them, regardless of any past operations.
+moUnexport() {
+    export -n $(moListVars)
+    export -fn $(moListFuncs)
+    MO_EXPORT=
+}
+
+
+# Print declaration of all shell functions and variables used by mo,
+# suitable for processing by another Bash shell. Any Bash instance
+# processing the output of this function may afterward call mo as
+# though itself having sourced the file.
+moDeclare() {
+    local functions="$(moListFuncs)"
+    if ! [ -z "${functions}" ]; then
+        declare -fp ${functions}
+    fi
+    local vars="$(moListVars)"
+    if ! [ -z "${vars}" ]; then
+        declare -p ${vars}
+    fi
+    if ! [ -z "${MO_EXPORT}" ]; then
+        echo moExport
+    fi
+}
+
+
 # Save the original command's path for usage later
 MO_ORIGINAL_COMMAND="$(cd "${BASH_SOURCE[0]%/*}" || exit 1; pwd)/${BASH_SOURCE[0]##*/}"
 MO_VERSION="2.2.0"
+MO_EXPORT=
 
 # If sourced, load all functions.
 # If executed, perform the actions as expected.

From 47941c83a46581e58629f9e643ce91ed67f06d0d Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 17:55:54 -0500
Subject: [PATCH 03/24] Fix formatting of white space in test output

---
 run-tests | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/run-tests b/run-tests
index b1a0331..507678b 100755
--- a/run-tests
+++ b/run-tests
@@ -38,7 +38,7 @@ for TEST in tests/*.expected; do
 done
 
 echo ""
-echo "Pass:  $PASS"
+echo "Pass: $PASS"
 echo "Fail: $FAIL"
 if [[ $FAIL -gt 0 ]]; then
     exit 1

From 343135760ccb7375ff3bc937e4350cc20d5ed72b Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 17:36:46 -0500
Subject: [PATCH 04/24] Fortify detection of base directory for tests

---
 run-tests | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/run-tests b/run-tests
index 507678b..f1a8d21 100755
--- a/run-tests
+++ b/run-tests
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-cd "${0%/*}" || exit 1
+cd "$(dirname "$0")" || exit 1
 
 # shellcheck disable=SC1091
 . ./mo

From ed2ab8f2a6122f42320761cad059ed9137da2e68 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 17:01:38 -0500
Subject: [PATCH 05/24] Move loop over tests to separate file

---
 run-basic-tests | 33 +++++++++++++++++++++++++++++++++
 run-tests       | 30 +-----------------------------
 2 files changed, 34 insertions(+), 29 deletions(-)
 create mode 100755 run-basic-tests

diff --git a/run-basic-tests b/run-basic-tests
new file mode 100755
index 0000000..8e04e20
--- /dev/null
+++ b/run-basic-tests
@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+cd "$(dirname "$0")" || exit 1
+
+for TEST in tests/*.expected; do
+    export BASE="${TEST%.expected}"
+    export MO_FALSE_IS_EMPTY=
+
+    echo -n "$BASE ... "
+
+    (
+        if [[ -f "${BASE}.sh" ]]; then
+            # Run a shell script if one exists
+            "${BASE}.sh"
+        else
+            # Fall back to using .env and .template
+            # shellcheck disable=SC1090
+            . "${BASE}.env"
+            echo "Do not read this input" | mo "${BASE}.template"
+        fi
+    ) | diff -U5 - "${TEST}" > "${BASE}.diff"
+
+    statusCode=$?
+
+    if [[ $statusCode -ne 0 ]]; then
+        echo "FAIL (status code $statusCode)"
+        FAIL=$(( FAIL + 1 ))
+    else
+        echo "ok"
+        PASS=$(( PASS + 1 ))
+        rm "${BASE}.diff"
+    fi
+done
diff --git a/run-tests b/run-tests
index f1a8d21..e5016f3 100755
--- a/run-tests
+++ b/run-tests
@@ -7,35 +7,7 @@ cd "$(dirname "$0")" || exit 1
 PASS=0
 FAIL=0
 
-for TEST in tests/*.expected; do
-    export BASE="${TEST%.expected}"
-    export MO_FALSE_IS_EMPTY=
-
-    echo -n "$BASE ... "
-
-    (
-        if [[ -f "${BASE}.sh" ]]; then
-            # Run a shell script if one exists
-            "${BASE}.sh"
-        else
-            # Fall back to using .env and .template
-            # shellcheck disable=SC1090
-            . "${BASE}.env"
-            echo "Do not read this input" | mo "${BASE}.template"
-        fi
-    ) | diff -U5 - "${TEST}" > "${BASE}.diff"
-
-    statusCode=$?
-
-    if [[ $statusCode -ne 0 ]]; then
-        echo "FAIL (status code $statusCode)"
-        FAIL=$(( FAIL + 1 ))
-    else
-        echo "ok"
-        PASS=$(( PASS + 1 ))
-        rm "${BASE}.diff"
-    fi
-done
+source ./run-basic-tests
 
 echo ""
 echo "Pass: $PASS"

From 67bd586575e1623fa98f5fded0f073db36617f30 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 17:01:59 -0500
Subject: [PATCH 06/24] Print prefix `basic` before test name instead of file
 relative path

---
 run-basic-tests | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/run-basic-tests b/run-basic-tests
index 8e04e20..b7c4580 100755
--- a/run-basic-tests
+++ b/run-basic-tests
@@ -6,7 +6,7 @@ for TEST in tests/*.expected; do
     export BASE="${TEST%.expected}"
     export MO_FALSE_IS_EMPTY=
 
-    echo -n "$BASE ... "
+    echo -n "basic:${BASE#tests/} ... "
 
     (
         if [[ -f "${BASE}.sh" ]]; then

From 3cd32a4a0ed5e67bc46a5871711a3bf9289ad8bc Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 17:04:49 -0500
Subject: [PATCH 07/24] Add `meta` tests, to validate handling of functions for
 subshells

---
 meta-tests.txt |  0
 run-meta-tests | 23 +++++++++++++++++++++++
 run-tests      |  2 ++
 3 files changed, 25 insertions(+)
 create mode 100644 meta-tests.txt
 create mode 100644 run-meta-tests

diff --git a/meta-tests.txt b/meta-tests.txt
new file mode 100644
index 0000000..e69de29
diff --git a/run-meta-tests b/run-meta-tests
new file mode 100644
index 0000000..3af69f0
--- /dev/null
+++ b/run-meta-tests
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+cd "$(dirname "$0")" || exit 1
+
+for TEST in $(cat meta-tests.txt); do
+
+    echo -n "meta:$TEST ... "
+
+    (
+        meta-tests/${TEST}.sh > /dev/null 2> /dev/null
+    )
+
+    statusCode=$?
+
+    if [[ $statusCode -ne 0 ]]; then
+        echo "FAIL (status code $statusCode)"
+        FAIL=$(( FAIL + 1 ))
+    else
+        echo "ok"
+        PASS=$(( PASS + 1 ))
+    fi
+
+done
diff --git a/run-tests b/run-tests
index e5016f3..33889b7 100755
--- a/run-tests
+++ b/run-tests
@@ -9,6 +9,8 @@ FAIL=0
 
 source ./run-basic-tests
 
+source ./run-meta-tests
+
 echo ""
 echo "Pass: $PASS"
 echo "Fail: $FAIL"

From 8aeb20b1c028a23d92d093096760086d6b00d827 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 20:39:34 -0500
Subject: [PATCH 08/24] Add trivial test, for basic integrity of framework

---
 meta-tests.txt     | 1 +
 meta-tests/base.sh | 6 ++++++
 2 files changed, 7 insertions(+)
 create mode 100755 meta-tests/base.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index e69de29..df967b9 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -0,0 +1 @@
+base
diff --git a/meta-tests/base.sh b/meta-tests/base.sh
new file mode 100755
index 0000000..64b6008
--- /dev/null
+++ b/meta-tests/base.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+source ./mo
+if (( FAIL )); then
+    exit 1
+fi

From 61151b307bd0f4ab94504541650e1a7f8ea198c2 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 17:07:11 -0500
Subject: [PATCH 09/24] Add test that functions are not normally inherited

---
 meta-tests.txt                | 1 +
 meta-tests/subshell-simple.sh | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100755 meta-tests/subshell-simple.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index df967b9..1762ded 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -1 +1,2 @@
 base
+subshell-simple
diff --git a/meta-tests/subshell-simple.sh b/meta-tests/subshell-simple.sh
new file mode 100755
index 0000000..6e874bd
--- /dev/null
+++ b/meta-tests/subshell-simple.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+source ./mo
+bash << "EOF"
+source ./run-basic-tests
+if ! (( FAIL )); then
+    exit 1
+fi
+EOF

From 0036b48238d40a74fc108cf4fb53f576984a4e02 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 20:26:06 -0500
Subject: [PATCH 10/24] Add trivial test, that processing fails when tool is
 not invoked

---
 meta-tests.txt                    | 1 +
 meta-tests/subshell-undeclared.sh | 8 ++++++++
 2 files changed, 9 insertions(+)
 create mode 100755 meta-tests/subshell-undeclared.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 1762ded..de6e30f 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -1,2 +1,3 @@
 base
 subshell-simple
+subshell-undeclared
diff --git a/meta-tests/subshell-undeclared.sh b/meta-tests/subshell-undeclared.sh
new file mode 100755
index 0000000..da66a32
--- /dev/null
+++ b/meta-tests/subshell-undeclared.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+bash << "EOF"
+source ./run-basic-tests
+if ! (( FAIL )); then
+    exit 1
+fi
+EOF

From 9ad445e280e3d8d7a5ce94c3d3ba08dd8d185626 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 17:14:51 -0500
Subject: [PATCH 11/24] Add test that functions run in child if explicitly
 imported

---
 meta-tests.txt                | 1 +
 meta-tests/subshell-source.sh | 8 ++++++++
 2 files changed, 9 insertions(+)
 create mode 100755 meta-tests/subshell-source.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index de6e30f..0ef16b2 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -1,3 +1,4 @@
 base
 subshell-simple
 subshell-undeclared
+subshell-source
diff --git a/meta-tests/subshell-source.sh b/meta-tests/subshell-source.sh
new file mode 100755
index 0000000..6edb3d9
--- /dev/null
+++ b/meta-tests/subshell-source.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+bash << "EOF"
+source ./mo
+source ./run-basic-tests
+if (( FAIL )); then
+    exit 1
+fi

From cec3502e2207e19b6404b4e2f17ced38d5f17cbf Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 18:14:36 -0500
Subject: [PATCH 12/24] Add test that functions run in child if exported by
 parent

---
 meta-tests.txt                |  1 +
 meta-tests/subshell-export.sh | 11 +++++++++++
 2 files changed, 12 insertions(+)
 create mode 100755 meta-tests/subshell-export.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 0ef16b2..86609f1 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -2,3 +2,4 @@ base
 subshell-simple
 subshell-undeclared
 subshell-source
+subshell-export
diff --git a/meta-tests/subshell-export.sh b/meta-tests/subshell-export.sh
new file mode 100755
index 0000000..83147e0
--- /dev/null
+++ b/meta-tests/subshell-export.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+source ./mo
+moExport
+bash << "EOF"
+source ./run-basic-tests
+if (( FAIL )); then
+    exit 1
+fi
+EOF
+

From 61d6b0c6ef01ed601c45a7e8c559f16c876b491e Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 19:32:50 -0500
Subject: [PATCH 13/24] Add test that listed functions are the same as actually
 defined

---
 meta-tests.txt              |  1 +
 meta-tests/function-list.sh | 15 +++++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100755 meta-tests/function-list.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 86609f1..e8a55f4 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -3,3 +3,4 @@ subshell-simple
 subshell-undeclared
 subshell-source
 subshell-export
+function-list
diff --git a/meta-tests/function-list.sh b/meta-tests/function-list.sh
new file mode 100755
index 0000000..cf38e4d
--- /dev/null
+++ b/meta-tests/function-list.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+list_function_names() {
+    declare -F | while read l; do echo ${l/#* /}; done | sort
+}
+
+f_orig=$(list_function_names)
+
+source ./mo
+
+f=$(list_function_names)
+
+f_new=$(comm -13 <(echo $f_orig | tr ' ' '\n') <(echo $f | tr ' ' '\n'))
+
+diff <(echo $f_new | tr ' ' '\n') <(moListFuncs | sort)

From 9a81e1d831a1e4b1b29925d66da11c7dce559a0c Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 19:32:50 -0500
Subject: [PATCH 14/24] Add test that defined functions are properly unloaded

---
 meta-tests.txt                |  1 +
 meta-tests/function-unload.sh | 14 ++++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100755 meta-tests/function-unload.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index e8a55f4..64e86b5 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -4,3 +4,4 @@ subshell-undeclared
 subshell-source
 subshell-export
 function-list
+function-unload
diff --git a/meta-tests/function-unload.sh b/meta-tests/function-unload.sh
new file mode 100755
index 0000000..263c8d7
--- /dev/null
+++ b/meta-tests/function-unload.sh
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+list_function_names() {
+    declare -F | while read l; do echo ${l/#* /}; done | sort
+}
+
+f_orig=$(list_function_names)
+
+source ./mo
+moUnload
+
+f=$(list_function_names)
+
+diff <(echo $f_orig | tr ' ' '\n') <(echo $f | tr ' ' '\n')

From 747bb5932255d3a059073956fb974e215c0d5e37 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Tue, 25 Jan 2022 16:56:06 -0500
Subject: [PATCH 15/24] Add test that all declared functions are inherited when
 marked for export

---
 meta-tests.txt                |  1 +
 meta-tests/function-export.sh | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)
 create mode 100755 meta-tests/function-export.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 64e86b5..4107891 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -5,3 +5,4 @@ subshell-source
 subshell-export
 function-list
 function-unload
+function-export
diff --git a/meta-tests/function-export.sh b/meta-tests/function-export.sh
new file mode 100755
index 0000000..fb6ba3c
--- /dev/null
+++ b/meta-tests/function-export.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+list_function_names() {
+    declare -F | while read l; do echo ${l/#* /}; done | sort
+}
+declare -xf list_function_names
+
+f_orig=$(list_function_names)
+
+source ./mo
+moExport
+
+f=$(bash -c list_function_names)
+
+f_new=$(comm -13 <(echo $f_orig | tr ' ' '\n') <(echo $f | tr ' ' '\n'))
+
+diff <(echo $f_new | tr ' ' '\n') <(moListFuncs | sort)

From 88e7f092272eade700cc8a522ad0bcf39ec02d3e Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Tue, 25 Jan 2022 17:00:09 -0500
Subject: [PATCH 16/24] Add test that unmarking for export prevents inheritence
 by child shell

---
 meta-tests.txt                  |  1 +
 meta-tests/function-unexport.sh | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100755 meta-tests/function-unexport.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 4107891..4792085 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -6,3 +6,4 @@ subshell-export
 function-list
 function-unload
 function-export
+function-unexport
diff --git a/meta-tests/function-unexport.sh b/meta-tests/function-unexport.sh
new file mode 100755
index 0000000..5190c49
--- /dev/null
+++ b/meta-tests/function-unexport.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+list_function_names() {
+    declare -F | while read l; do echo ${l/#* /}; done | sort
+}
+declare -xf list_function_names
+
+f_orig=$(list_function_names)
+
+source ./mo
+moExport
+moUnexport
+
+f=$(bash -c list_function_names)
+
+diff <(echo $f_orig | tr ' ' '\n') <(echo $f | tr ' ' '\n')

From c4cd099d650e70343417377c5f8f9ef9b8898fe7 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Tue, 25 Jan 2022 16:31:53 -0500
Subject: [PATCH 17/24] Add test that subshell may process
 automatically-generated declarations

---
 meta-tests.txt                 | 1 +
 meta-tests/subshell-declare.sh | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100755 meta-tests/subshell-declare.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 4792085..93888c6 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -3,6 +3,7 @@ subshell-simple
 subshell-undeclared
 subshell-source
 subshell-export
+subshell-declare
 function-list
 function-unload
 function-export
diff --git a/meta-tests/subshell-declare.sh b/meta-tests/subshell-declare.sh
new file mode 100755
index 0000000..9b6db40
--- /dev/null
+++ b/meta-tests/subshell-declare.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+source ./mo
+cat <(moDeclare) - << "EOF" | bash
+source ./run-basic-tests
+if (( FAIL )); then
+    exit 1
+fi
+EOF

From 79231fad64f5755ea1b5cb1d1b123319e53fde02 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 20:12:54 -0500
Subject: [PATCH 18/24] Add test that declarations are not dependent on
 inherited environment

---
 meta-tests.txt               | 1 +
 meta-tests/subshell-clean.sh | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100755 meta-tests/subshell-clean.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 93888c6..3c8980c 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -2,6 +2,7 @@ base
 subshell-simple
 subshell-undeclared
 subshell-source
+subshell-clean
 subshell-export
 subshell-declare
 function-list
diff --git a/meta-tests/subshell-clean.sh b/meta-tests/subshell-clean.sh
new file mode 100755
index 0000000..c8fa996
--- /dev/null
+++ b/meta-tests/subshell-clean.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+source ./mo
+cat <(moDeclare) - << "EOF" | env --ignore-environment bash
+source ./run-basic-tests
+if (( FAIL )); then
+    exit 1
+fi
+EOF

From 84edc13c1ef53e73c7f6bacc9f518c09cfede797 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 20:15:56 -0500
Subject: [PATCH 19/24] Add test that functions are not inherited into clean
 environment

---
 meta-tests.txt                          |  1 +
 meta-tests/subshell-clean-undeclared.sh | 10 ++++++++++
 2 files changed, 11 insertions(+)
 create mode 100755 meta-tests/subshell-clean-undeclared.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 3c8980c..0a9063d 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -3,6 +3,7 @@ subshell-simple
 subshell-undeclared
 subshell-source
 subshell-clean
+subshell-clean-undeclared
 subshell-export
 subshell-declare
 function-list
diff --git a/meta-tests/subshell-clean-undeclared.sh b/meta-tests/subshell-clean-undeclared.sh
new file mode 100755
index 0000000..56ba131
--- /dev/null
+++ b/meta-tests/subshell-clean-undeclared.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+source ./mo
+moExport
+env --ignore-environment << "EOF"
+source ./run-basic-tests
+if ! (( FAIL )); then
+    exit 1
+fi
+EOF

From b1d679b7b45c8286fd7f10231d9715b0dc28773e Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 20:19:50 -0500
Subject: [PATCH 20/24] Add test that unmarking functions for export indeed
 prevents exportation

---
 meta-tests.txt                  |  1 +
 meta-tests/subshell-unexport.sh | 11 +++++++++++
 2 files changed, 12 insertions(+)
 create mode 100755 meta-tests/subshell-unexport.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 0a9063d..60e75c5 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -5,6 +5,7 @@ subshell-source
 subshell-clean
 subshell-clean-undeclared
 subshell-export
+subshell-unexport
 subshell-declare
 function-list
 function-unload
diff --git a/meta-tests/subshell-unexport.sh b/meta-tests/subshell-unexport.sh
new file mode 100755
index 0000000..b0c1fe5
--- /dev/null
+++ b/meta-tests/subshell-unexport.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+source ./mo
+moExport
+moUnexport
+bash << "EOF"
+source ./run-basic-tests
+if ! (( FAIL )); then
+    exit 1
+fi
+EOF

From 772eec96725d7dfa695b16aa9fc8c3f4c327782c Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 20:22:52 -0500
Subject: [PATCH 21/24] Add test that exported functions are inherited by
 descendants

---
 meta-tests.txt                       |  1 +
 meta-tests/subshell-export-nested.sh | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100755 meta-tests/subshell-export-nested.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 60e75c5..9a86f42 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -5,6 +5,7 @@ subshell-source
 subshell-clean
 subshell-clean-undeclared
 subshell-export
+subshell-export-nested
 subshell-unexport
 subshell-declare
 function-list
diff --git a/meta-tests/subshell-export-nested.sh b/meta-tests/subshell-export-nested.sh
new file mode 100755
index 0000000..e4cbd89
--- /dev/null
+++ b/meta-tests/subshell-export-nested.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+source ./mo
+moExport
+bash << "EOF"
+bash << "EOF2"
+bash << "EOF3"
+bash << "EOF4"
+source ./run-basic-tests
+if (( FAIL )); then
+exit 1
+fi
+EOF4
+EOF3
+EOF2
+EOF

From e1b775a9da74a7ccf30b601588168b7e4e345eb8 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 20:32:26 -0500
Subject: [PATCH 22/24] Add test that unmarking for export works in child shell
 from original

---
 meta-tests.txt                         |  1 +
 meta-tests/subshell-unexport-nested.sh | 13 +++++++++++++
 2 files changed, 14 insertions(+)
 create mode 100755 meta-tests/subshell-unexport-nested.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 9a86f42..b7f378f 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -7,6 +7,7 @@ subshell-clean-undeclared
 subshell-export
 subshell-export-nested
 subshell-unexport
+subshell-unexport-nested
 subshell-declare
 function-list
 function-unload
diff --git a/meta-tests/subshell-unexport-nested.sh b/meta-tests/subshell-unexport-nested.sh
new file mode 100755
index 0000000..9d0f2df
--- /dev/null
+++ b/meta-tests/subshell-unexport-nested.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+source ./mo
+moExport
+bash << "EOF"
+moUnexport
+bash << "EOF2"
+source ./run-basic-tests
+if ! (( FAIL )); then
+    exit 1
+fi
+EOF2
+EOF

From 5e04b21a7059811eed197f360a02971fea38d751 Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 22:13:47 -0500
Subject: [PATCH 23/24] Add test that declarations may be propagated to
 descedant shells

---
 meta-tests.txt                        |  1 +
 meta-tests/subshell-declare-nested.sh | 15 +++++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100755 meta-tests/subshell-declare-nested.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index b7f378f..7a48ab0 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -9,6 +9,7 @@ subshell-export-nested
 subshell-unexport
 subshell-unexport-nested
 subshell-declare
+subshell-declare-nested
 function-list
 function-unload
 function-export
diff --git a/meta-tests/subshell-declare-nested.sh b/meta-tests/subshell-declare-nested.sh
new file mode 100755
index 0000000..5b385a9
--- /dev/null
+++ b/meta-tests/subshell-declare-nested.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+source ./mo
+cat <(moDeclare) - << "EOF" | bash
+cat <(moDeclare) - << "EOF2" | bash
+cat <(moDeclare) - << "EOF3" | bash
+cat <(moDeclare) - << "EOF4" | bash
+source ./run-basic-tests
+if (( FAIL )); then
+    exit 1
+fi
+EOF4
+EOF3
+EOF2
+EOF

From a6771a6fb7642fb2a801eebb5e6fd0cb3663dcbb Mon Sep 17 00:00:00 2001
From: Eric Levy <contact@ericlevy.name>
Date: Mon, 24 Jan 2022 22:24:34 -0500
Subject: [PATCH 24/24] Add test that generated usage function is equivalent to
 original

---
 meta-tests.txt               | 1 +
 meta-tests/subshell-usage.sh | 4 ++++
 2 files changed, 5 insertions(+)
 create mode 100755 meta-tests/subshell-usage.sh

diff --git a/meta-tests.txt b/meta-tests.txt
index 7a48ab0..e94b65c 100644
--- a/meta-tests.txt
+++ b/meta-tests.txt
@@ -1,4 +1,5 @@
 base
+subshell-usage
 subshell-simple
 subshell-undeclared
 subshell-source
diff --git a/meta-tests/subshell-usage.sh b/meta-tests/subshell-usage.sh
new file mode 100755
index 0000000..32fc9c1
--- /dev/null
+++ b/meta-tests/subshell-usage.sh
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+source ./mo
+diff <(moUsage) <((moDeclare; echo moUsage) | bash)