```factor
! Copyright (C) 2007 Chris Double.
! See http://factorcode.org/license.txt for BSD license.
!
USING: kernel tools.test peg peg.expr multiline sequences ;
IN: temporary

{ 5 } [
  "2+3" eval-expr 
] unit-test

{ 6 } [
  "2*3" eval-expr 
] unit-test

{ 14 } [
  "2+3*4" eval-expr 
] unit-test

{ 17 } [
  "2+3*4+3" eval-expr 
] unit-test

{ 23 } [
  "2+3*(4+3)" eval-expr 
] unit-test
```

Fix vocab name in expr tests
user
```factor
! Copyright (C) 2007 Chris Double.
! See http://factorcode.org/license.txt for BSD license.
!
USING: kernel tools.test peg peg.expr multiline sequences ;
IN: peg.expr.tests

{ 5 } [
  "2+3" eval-expr 
] unit-test

{ 6 } [
  "2*3" eval-expr 
] unit-test

{ 14 } [
  "2+3*4" eval-expr 
] unit-test

{ 17 } [
  "2+3*4+3" eval-expr 
] unit-test

{ 23 } [
  "2+3*(4+3)" eval-expr 
] unit-test
```
assistant