Add export script pseudo-builtin

3 files changed, 170 insertions, 4 deletions

diff --git a/tests/recipe/buildscript/testscript b/tests/recipe/buildscript/testscript
index 6bdbd32..14036dd 100644
--- a/tests/recipe/buildscript/testscript
+++ b/tests/recipe/buildscript/testscript
@@ -1,6 +1,8 @@
 # file      : tests/recipe/buildscript/testscript
 # license   : MIT; see accompanying LICENSE file
 
+posix = ($cxx.target.class != 'windows')
+
 +mkdir build
 +cat <<EOI >=build/bootstrap.build
   project = test
@@ -129,6 +131,37 @@
     $* clean 2>-
   }
 
+  : export
+  :
+  if $posix
+  {
+    cat <<EOI >=bar;
+      #!/bin/sh
+      echo "$message"
+      EOI
+
+    cat <<EOI >=buildfile;
+      exe{foo}: bar
+      {{
+        cp $path($<) $path($>)
+      }}
+      % test
+      {{
+        diag test $>
+        export message=text1
+        $> >>>?'text1'
+        env message=text2 -- $> >>>?'text2'
+      }}
+      EOI
+
+    $* test 2>>EOE;
+      cp exe{foo}
+      test exe{foo.}
+      EOE
+
+    $* clean 2>-
+  }
+
   : depdb
   :
   {
@@ -442,7 +475,7 @@
 
   : runner
   :
-  if ($cxx.target.class != 'windows')
+  if $posix
   {
     echo 'bar' >=bar;
 
@@ -512,7 +545,7 @@
 
 : timeout
 :
-if ($cxx.target.class != 'windows')
+if $posix
 {
   : update
   :
diff --git a/tests/test/script/runner/driver.cxx b/tests/test/script/runner/driver.cxx
index 935541d..f081714 100644
--- a/tests/test/script/runner/driver.cxx
+++ b/tests/test/script/runner/driver.cxx
@@ -66,8 +66,8 @@ main (int argc, char* argv[])
   //    if required.
   //
   // -v <name>
-  //    If the specified variable is set the print its value to stdout and the
-  //    string '<none>' otherwise.
+  //    If the specified variable is set then print its value to stdout and
+  //    the string '<none>' otherwise.
   //
   // -l <sec>
   //    Sleep the specified number of seconds.
diff --git a/tests/test/script/runner/export.testscript b/tests/test/script/runner/export.testscript
new file mode 100644
index 0000000..f965005
--- /dev/null
+++ b/tests/test/script/runner/export.testscript
@@ -0,0 +1,133 @@
+# file      : tests/test/script/runner/export.testscript
+# license   : MIT; see accompanying LICENSE file
+
+.include ../common.testscript
+
+: group
+:
+{
+  : add
+  :
+  $c <<EOI && $b
+    {
+      +export foo=bar
+
+      $* -v foo >'bar'
+    }
+    EOI
+
+  : change
+  :
+  $c <<EOI && $b
+    {
+      +export foo=bar
+      +export foo=baz
+
+      $* -v foo >'baz'
+    }
+    EOI
+
+  : remove
+  :
+  $c <<EOI && $b
+    {
+      +export foo=bar
+      +export --unset foo
+
+      $* -v foo >'<none>'
+    }
+    EOI
+
+  : clear
+  :
+  {
+    : added
+    :
+    $c <<EOI && $b
+      {
+        +export foo=bar
+        +export --clear foo
+
+        $* -v foo >'<none>'
+      }
+      EOI
+
+    : removed
+    :
+    $c <<EOI && $b
+      {
+        +export foo=bar
+        +export --unset foo
+        +export --clear foo
+
+        $* -v foo >'<none>'
+      }
+      EOI
+
+    : non-existent
+    :
+    $c <<EOI && $b
+      {
+        +export --clear foo
+
+        $* -v foo >'<none>'
+      }
+      EOI
+  }
+
+  : override
+  :
+  $c <<EOI && $b
+    +export foo=bar
+
+    {
+      +export --unset foo
+
+      export foo=baz;
+      $* -v foo >'baz'
+
+      -$* -v foo >'<none>'
+    }
+
+    -$* -v foo >'bar'
+    EOI
+}
+
+: test
+:
+{
+  : override
+  :
+  $c <<EOI && $b
+    {
+      export foo=bar;
+      env foo=baz -- $* -v foo >'baz';
+      $* -v foo >'bar'
+    }
+    EOI
+}
+
+: invalid
+:
+{
+  : set
+  :
+  $c <'export foo' && $b 2>>~%EOE% != 0
+    testscript:1:1: error: export: expected variable assignment instead of 'foo'
+    %.+
+    EOE
+
+  : unset
+  :
+  $c <'export --unset foo=abc' && $b 2>>~%EOE% != 0
+    testscript:1:1: error: export: invalid value 'foo=abc' for option -u|--unset: contains '='
+    %.+
+    EOE
+
+  : clear
+  :
+  $c <'export --clear foo=abc' && $b 2>>~%EOE% != 0
+    testscript:1:1: error: export: invalid value 'foo=abc' for option -c|--clear: contains '='
+    %.+
+    EOE
+}