add 'language/not' spec

test/test-android/app/language/not_1.9.rb

@@ -0,0 +1,24 @@
+describe "not()" do
+  # not(arg).method and method(not(arg)) raise SyntaxErrors on 1.8. Here we
+  # use #inspect to test that the syntax works on 1.9
+
+=begin
+  it "can be used as a function" do
+    lambda do
+      not(true).inspect
+    end.should_not raise_error(SyntaxError)
+  end
+=end
+
+  it "returns false if the argument is true" do
+    not(true).inspect.should == "false"
+  end
+
+  it "returns true if the argument is false" do
+    not(false).inspect.should == "true"
+  end
+
+  it "returns true if the argument is nil" do
+    not(false).inspect.should == "true"
+  end
+end

test/test-android/app/language/not_spec.rb

@@ -0,0 +1,53 @@
+describe "The not keyword" do
+  it "negates a `true' value" do
+    (not true).should be_false
+    (not 'true').should be_false
+  end
+
+  it "negates a `false' value" do
+    (not false).should be_true
+    (not nil).should be_true
+  end
+
+=begin
+  it "accepts an argument" do
+    lambda do
+      not(true)
+    end.should_not raise_error(SyntaxError)
+  end
+=end
+
+  it "returns false if the argument is true" do
+    (not(true)).should be_false
+  end
+
+  it "returns true if the argument is false" do
+    (not(false)).should be_true
+  end
+
+  it "returns true if the argument is nil" do
+    (not(false)).should be_true
+  end
+end
+
+describe "The `!' keyword" do
+  it "negates a `true' value" do
+    (!true).should be_false
+    (!'true').should be_false
+  end
+
+  it "negates a `false' value" do
+    (!false).should be_true
+    (!nil).should be_true
+  end
+
+  it "turns a truthful object into `true'" do
+    (!!true).should be_true
+    (!!'true').should be_true
+  end
+
+  it "turns a not truthful object into `false'" do
+    (!!false).should be_false
+    (!!nil).should be_false
+  end
+end