expressive_spec.rb in expressive-0.0.33

- old
+ new

@@ -4,11 +4,11 @@
   before(:each) do
     @scope = Expressive::TopLevel.new
   end
 
   describe "all_symbols" do
-    it { Expressive.all_symbols.should =~ %w(+ - * / = set sum $sub get put post >= > < <= and or if date datetime lookup round $round $days_ago $hours_ago $minutes_ago $append $id $head $lookup $reverse $tail $hash $concat $split $sms $hval $index $random $join) }
+    it { Expressive.all_symbols.should =~ %w(+ - * / = set sum $sub get put post >= > < <= and or if date datetime lookup round $round $days_ago $hours_ago $minutes_ago $append $id $head $lookup $reverse $tail $hash $concat $split $sms $hval $index $random $join $not) }
   end
 
   describe "understands booleans" do
     it { Expressive.run("true").should eql true }
     it { Expressive.run("false").should eql false }
@@ -285,10 +285,30 @@
       it { Expressive.run('(and true nil_value)', @scope).should eql false }
       it { Expressive.run('(and nil_value true)', @scope).should eql false }
       it { Expressive.run('(or nil_value true)', @scope).should eql true }
       it { Expressive.run('(or nil_value false)', @scope).should eql false }
     end
+
+    context "not - negate a boolean" do
+      before(:each) do
+        @scope["key1"] = "value1"
+        @scope["key2"] = "value2"
+        @scope["key3"] = "value1"
+        @scope["key4"] = nil
+      end
+      it { Expressive.run('($not true)', @scope).should eql false }
+      it { Expressive.run('($not false)', @scope).should eql true }
+      it { Expressive.run('($not (= 1 2))', @scope).should eql true}
+      it { Expressive.run('($not (= 1 1))', @scope).should eql false}
+      it { Expressive.run('($not (= key1 key2))', @scope).should eql true}
+      it { Expressive.run('($not (= key1 key3))', @scope).should eql false}
+      it { Expressive.run("($not (= key1 ''))", @scope).should eql true}
+      it { Expressive.run('($not (= key1 "value1"))', @scope).should eql false}
+      it { Expressive.run('($not (= key4 "value2"))', @scope).should eql true}
+      it { Expressive.run('($not (= key4 ''))', @scope).should eql false}
+
+    end
   end
 
   describe "generates random values" do
     it "generates random literal values" do
       [1, 2, 3, 4].include?(Expressive.run('($random 1 2 3 4)', @scope)).should be_true
@@ -726,6 +746,16 @@
         assert_requested(request)
         @scope['goodbye'].should eql 'srsly'
       end
     end
   end
+  
+  describe "parse error handling" do
+    it "should raise parse exceptions" do
+      expect{ Expressive.run(nil) }.to raise_error Expressive::ParseError, "Error parsing nil expression:  undefined method `length' for nil:NilClass"
+    end
+    it "should raise runtime exceptions" do
+      expect{ Expressive.run('( 1 2') }.to raise_error Expressive::RunError, "Error running '( 1 2':  private method `eval' called for nil:NilClass"
+    end
+  end
+
 end