private void TestThatConcatenationYields(string left, string right, string expectedResult) { var leftExpr = new StringLiteral(left); var rightExpr = new StringLiteral(right); var concatExpr = new ConcatenationExpression(leftExpr, rightExpr); concatExpr.TryEvaluate(EmptyEnvironment, out string actualResult).Should().BeTrue(); actualResult.Should().Be(expectedResult); }
public void TestThatEvalFailsIfEitherExpressionCannotBeEvaluated() { var concat = new ConcatenationExpression(AnyUnevaluatableExpr, AnyEvaluatableExpr); concat.TryEvaluate(EmptyEnvironment, out string value).Should().BeFalse(); concat = new ConcatenationExpression(AnyEvaluatableExpr, AnyUnevaluatableExpr); concat.TryEvaluate(EmptyEnvironment, out value).Should().BeFalse(); }