Added `exports` expectation

src/expect/env.sh

@@ -29,7 +29,7 @@ __INC_EXPECT_ENV=1
 #
 __expect-env()
 {
-  local -r flag="$1" var="$2" cmp="$3"
+  local -r expflags="$1" var="$2" cmp="$3"
   shift 3
   local -r expect="$@"
 
@@ -37,6 +37,11 @@ __expect-env()
   local flags val
   __read-env-line "$var" flags val < "$envpath"
 
+  # perform flag assertion if requested
+  test -n "$expflags" && {
+    [[ "$flags" =~ [$expflags] ]] || return 1
+  }
+
   # cannot quote regex without causing problems, and [[ syntax does not
   # allow a variable comparison operator; further, argument order varies
   # with certain operators; whitelist to explicitly document support and
@@ -100,3 +105,22 @@ _expect--declare()
   _expect--set "$@"
 }
 
+
+##
+# Checks that a variable is exported with the given value
+#
+# Same syntax as `set`
+#
+_expect--export()
+{
+  local -ri shiftn="$2"
+  local -r  envpath="$4"
+  shift "$shiftn"
+
+  # ensure envpath is available
+  __chk-shiftn 4 "$shiftn"
+
+  # expect the -x flag, which denotes export
+  __expect-env x "$@"
+}
+

test/test-expect-env

@@ -20,10 +20,11 @@
 ##
 
 declare -r stubenv='
-declare -- var="val"
-declare -- long="foo bar baz"
-declare -- empty=""
-declare -- one="1"'
+declare -x -- var="val"
+declare -x -- long="foo bar baz"
+declare -x -- empty=""
+declare -x -- one="1"
+declare -- nonexport=""'
 
 
 declare curchk
@@ -34,10 +35,10 @@ function setchk()
 
 
 # we have a few different expectations that have the same syntax
-for name in set declare; do
+for name in set declare export; do
   curchk=$name
 
-  describe set
+  describe "$name"
     describe = and == operators
       it succeeds on string equality
         expect setchk var = val
@@ -209,6 +210,13 @@ for name in set declare; do
       expect setchk var "!= foo -a 1 -eq" 1
         to fail
     end
+
+    if [ "$name" == export ]; then
+      it fails when variable is not exported
+        expect setchk nonexport -z
+          to fail
+      end
+    fi
   end
 done