Tests for exported assignments

Signed-off-by: Flynn <[email protected]>

Author: kflynn

testing.md

@@ -79,6 +79,9 @@ echo 'We have a nonexistant hook?'
 #@endif
 ```
 
+Hit RETURN to continue (this is the wait directive).
+<!-- @wait -->
+
 ### Assignments and functions
 
 Let's try an assignment.
@@ -88,6 +91,14 @@ FOO="Hello world"
 echo "$FOO"
 ```
 
+`export`ed assignments work too. (The word `export` itself is a noop in
+`demosh`, to be clear: variables are always exported.)
+
+```bash
+export BAR="Exported hello world"
+echo "$BAR"
+```
+
 The `$SHELL` environment variable should be overwritten to be `demosh` itself.
 
 ```bash
@@ -117,6 +128,13 @@ hello "world"
 hello2 "world"
 ```
 
+Assignments persist across blocks, of course.
+
+```bash
+echo $FOO
+echo $BAR
+```
+
 ### `cd`
 
 `cd` is handled internally, because it has to be.

testing.sh

@@ -38,10 +38,19 @@ echo "We have a browser hook!"
 echo 'We have a nonexistant hook?'
 #@endif
 
+## Hit RETURN to continue (this is the wait directive).
+#@wait
+
 # Let's try an assignment.
 FOO="Hello world"
 echo "$FOO"
 
+# exported assignments work too. (The word export itself is a noop in demosh,
+# to be clear: variables are always exported.)
+
+export BAR="Exported hello world"
+echo "$BAR"
+
 # The $SHELL environment variable should be overwritten to be demosh itself.
 echo "SHELL is $SHELL"
 
@@ -59,6 +68,11 @@ hello2 () {
 hello "world"
 hello2 "world"
 
+# Assignments persist across blocks, of course.
+
+echo $FOO
+echo $BAR
+
 # cd is handled internally, so this should work.
 cd /tmp
 pwd