public static void TestAssignment()
{
var context = new ExecutionContext(new Python3Calculator());
var foo = new Variable("foo", context);
var bar = new Variable("bar", context);
var boolean = new Literal(false);
var intNumber = new Literal(3);
var floatNumber = new Literal(3.0f);
context.Assign(foo, new Literal(3));
AssertEquals(foo.AsLiteral(), new Literal(3));
AssertEquals(foo.AsValue(), 3);
context.Assign(bar, new Literal(3));
AssertEquals(bar.AsLiteral(), new Literal(3));
AssertEquals(bar.AsValue(), 3);
context.Assign(bar, new Literal(5));
context.Assign(foo, bar);
AssertEquals(foo.AsLiteral(), new Literal(5));
AssertEquals(foo.AsValue(), 5);
AssertEquals(bar.AsLiteral(), new Literal(5));
AssertEquals(bar.AsValue(), 5);
AssertException<InvalidOperationException>(() => context.Assign(boolean, foo));
AssertException<InvalidOperationException>(() => context.Assign(intNumber, foo));
AssertException<InvalidOperationException>(() => context.Assign(floatNumber, foo));
}
public static void TestVariableArithmetic()
{
var context = new ExecutionContext(new Python3Calculator());
var foo = new Variable("foo", context);
var bar = new Variable("bar", context);
context.Assign(foo, new Literal(3));
context.Assign(bar, new Literal(5.0f));
AssertEquals(context.Add(foo, bar).AsValue(), 8.0f);
AssertEquals(context.Add(bar, foo).AsValue(), 8.0f);
AssertEquals(context.Subtract(foo, bar).AsValue(), -2.0f);
AssertEquals(context.Subtract(bar, foo).AsValue(), 2.0f);
AssertEquals(context.Multiply(foo, bar).AsValue(), 15.0f);
AssertEquals(context.Multiply(bar, foo).AsValue(), 15.0f);
AssertEquals(context.Divide(foo, bar).AsValue(), 3 / 5.0f);
AssertEquals(context.Divide(bar, foo).AsValue(), 5.0f / 3);
AssertEquals(context.Mod(foo, bar).AsValue(), 3.0f);
AssertEquals(context.Mod(bar, foo).AsValue(), 2.0f);
}