public void GivenPrimaryType_Get_MustParsedValue()
{
var visitor = new JsonVisitor("1");
var val = JsonVisitorExtensions.TryGet(visitor, typeof(int), out var res);
Assert.IsTrue(val);
Assert.AreEqual(1, res);
visitor = new JsonVisitor("1.123");
val = JsonVisitorExtensions.TryGet(visitor, typeof(double), out res);
Assert.IsTrue(val);
Assert.AreEqual(1.123d, res);
visitor = new JsonVisitor("1.123");
val = JsonVisitorExtensions.TryGet <double>(visitor, out var dres);
Assert.IsTrue(val);
Assert.AreEqual(1.123d, dres);
visitor = new JsonVisitor("1.123");
val = JsonVisitorExtensions.TryGet <double?>(visitor, out var ndres);
Assert.IsTrue(val);
Assert.AreEqual(1.123d, ndres.Value);
visitor = new JsonVisitor("1");
val = JsonVisitorExtensions.TryGet <Colors>(visitor, out var color);
Assert.IsTrue(val);
Assert.AreEqual(Colors.Red, color);
}
public void ParesFail_MustOutException(string value, Type type)
{
var visitor = new JsonVisitor(value);
var val = JsonVisitorExtensions.TryGet(visitor, type, out var ex, out var res);
Assert.IsFalse(val);
Assert.IsNotNull(ex);
}
public void PasePrimary_MustPass(string value, Type type)
{
var visitor = new JsonVisitor(value);
var val = JsonVisitorExtensions.TryGet(visitor, type, out var ex, out var res);
Assert.IsTrue(val);
Assert.IsNull(ex);
Assert.IsInstanceOfType(res, type);
}
public void ParseToString_MustReturnOrigin()
{
var visitor = new JsonVisitor("aaa");
var val = JsonVisitorExtensions.TryGet(visitor, typeof(string), out var ex, out var res);
Assert.IsTrue(val);
Assert.IsNull(ex);
Assert.AreEqual(visitor.ToString(), res);
}
public void ParseEnum_MustPass()
{
var visitor = new JsonVisitor("1");
var val = JsonVisitorExtensions.TryGet(visitor, typeof(Colors), out var ex, out var res);
Assert.IsTrue(val);
Assert.IsNull(ex);
Assert.AreEqual(Colors.Red, res);
}
public void PaseNullableType_MustReturnValue(string value, Type type)
{
var t = Nullable.GetUnderlyingType(type);
var visitor = new JsonVisitor(value);
var val = JsonVisitorExtensions.TryGet(visitor, type, out var ex, out var res);
Assert.IsTrue(val);
Assert.IsNull(ex);
Assert.IsInstanceOfType(res, t);
}
public void GivenNullCall_MustThrowException()
{
var visitor = new JsonVisitor();
var type = typeof(object);
Assert.ThrowsException <ArgumentNullException>(() => JsonVisitorExtensions.TryGet(null, type, out _));
Assert.ThrowsException <ArgumentNullException>(() => JsonVisitorExtensions.TryGet(visitor, null, out _));
Assert.ThrowsException <ArgumentNullException>(() => JsonVisitorExtensions.TryGet <object>(null, out _));
Assert.ThrowsException <ArgumentNullException>(() => JsonVisitorExtensions.TryGet <object>(null, out _, out _));
Assert.ThrowsException <ArgumentNullException>(() => JsonVisitorExtensions.TryGet(null, typeof(int), out _, out _));
Assert.ThrowsException <ArgumentNullException>(() => JsonVisitorExtensions.TryGet(visitor, null, out _, out _));
}
public void GivenCannotConvertValue_MustPaseFail()
{
var visitor = new JsonVisitor("a");
var val = JsonVisitorExtensions.TryGet(visitor, typeof(int), out var res);
Assert.IsFalse(val);
visitor = new JsonVisitor("a");
val = JsonVisitorExtensions.TryGet <int>(visitor, out _);
Assert.IsFalse(val);
visitor = new JsonVisitor("a");
val = JsonVisitorExtensions.TryGet <object>(visitor, out _);
Assert.IsFalse(val);
visitor = new JsonVisitor("a");
val = JsonVisitorExtensions.TryGet <object>(visitor, out var ex, out _);
Assert.IsFalse(val);
}
