Raise error when and_will_raise_error used without an expected call

Author: ryanplusplus

spec/mach_spec.lua

@@ -291,20 +291,27 @@ describe('The mach library', function()
     end)
   end)
 
-  it('should fail if and_will_return is not preceeded by should_be_called or should_be_called_with', function()
+  it('should fail if and_will_return is not preceeded by an expected call', function()
     should_fail_with('cannot set return value for an unspecified call', function()
       local f = mach.mock_function('f')
       f:and_will_return(1)
     end)
   end)
 
-  it('should fail if when is not preceeded by should_be_called or should_be_called_with', function()
+  it('should fail if and_will_raise_error is not preceeded by an expected call', function()
+    should_fail_with('cannot set error for an unspecified call', function()
+      local f = mach.mock_function('f')
+      f:and_will_raise_error(1)
+    end)
+  end)
+
+  it('should fail if when is not preceeded by an expected call', function()
     should_fail_with('incomplete expectation', function()
       f:when(function() end)
     end)
   end)
 
-  it('should fail if after is not preceeded by should_be_called or should_be_called_with', function()
+  it('should fail if after is not preceeded by an expected call', function()
     should_fail_with('incomplete expectation', function()
       f:after(function() end)
     end)

src/mach/Expectation.lua

@@ -29,9 +29,9 @@ function expectation:and_will_return(...)
 end
 
 function expectation:and_will_raise_error(...)
-  -- if not self._call_specified then
-  --   error('cannot set return value for an unspecified call', 2)
-  -- end
+  if not self._call_specified then
+    error('cannot set error for an unspecified call', 2)
+  end
 
   self._calls[#self._calls]:set_error(...)