public static void When_read_empty_object(string json)
{
// Read
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
var actual = jr.ReadObject(n => false, () => 0);
Assert.Equal(0, actual);
}
// Process
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
var actual = 0;
jr.ProcessObject(n =>
{
return(false);
},
() => actual++);
Assert.Equal(1, actual);
}
}
public static void When_read_empty_object(string json)
{
// Read
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
var actual = jr.ReadObject(n => false, () => 0);
Assert.Equal(0, actual);
}
// Process
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
var actual = 0;
jr.ProcessObject(n =>
{
return(false);
},
() => actual++);
Assert.Equal(1, actual);
}
// Skip
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
var actualCount = jr.SkipCountObject();
Assert.True(jr.TokenType == JsonToken.EndObject);
Assert.Equal(0, actualCount);
}
}
public static void When_read_null_object(string json)
{
// Read
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
string actual = null;
var model = jr.ReadObject(n =>
{
switch (n)
{
case "a": actual = (string)jr.Value; return(true);
}
return(false);
},
() => actual);
Assert.Null(model);
}
// Process
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
string actual = null;
jr.ProcessObject(n =>
{
switch (n)
{
case "a": actual = (string)jr.Value; return(true);
}
return(false);
},
() => actual = actual == null ? null : "oops");
Assert.Null(actual);
}
// Skip
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
var actualCount = jr.SkipCountObject();
Assert.True(jr.TokenType == JsonToken.EndObject);
Assert.Equal(1, actualCount);
}
}
public static void When_read_null_object(string json)
{
// Read
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
string actual = null;
var model = jr.ReadObject(n =>
{
switch (n)
{
case "a": actual = (string)jr.Value; return(true);
}
return(false);
},
() => actual);
Assert.Null(model);
}
// Process
using (var tr = new StringReader(json))
using (var jr = new JsonTextReader(tr))
{
string actual = null;
jr.ProcessObject(n =>
{
switch (n)
{
case "a": actual = (string)jr.Value; return(true);
}
return(false);
},
() => actual = actual == null ? null : "oops");
Assert.Null(actual);
}
}
public static void When_read_simple_object_negative()
{
// Read
using (var tr = new StringReader(jsonObject))
using (var jr = new JsonTextReader(tr))
{
string name = null;
var last = "smith";
var middle = "a";
var alive = false;
Assert.Throws <JsonReaderException>
(
() => jr.ReadObject(n =>
{
switch (n)
{
case "name": name = (string)jr.Value; return(true);
case "last": last = (string)jr.Value; return(true);
case "middle": middle = (string)jr.Value; return(true);
case "alive": alive = (bool)jr.Value; return(true);
// Neglect to process 'age'
}
return(false);
},
() => name)
);
}
// Process
using (var tr = new StringReader(jsonObject))
using (var jr = new JsonTextReader(tr))
{
string name = null;
var last = "smith";
var middle = "a";
var alive = false;
Assert.Throws <JsonReaderException>
(
() => jr.ProcessObject(n =>
{
switch (n)
{
case "name": name = (string)jr.Value; return(true);
case "last": last = (string)jr.Value; return(true);
case "middle": middle = (string)jr.Value; return(true);
case "alive": alive = (bool)jr.Value; return(true);
// Neglect to process 'age'
}
return(false);
},
() => { })
);
}
}
public static void When_read_simple_object()
{
// Read
using (var tr = new StringReader(jsonObject))
using (var jr = new JsonTextReader(tr))
{
string name = null;
var last = "smith";
var middle = "a";
var alive = false;
var age = -1L;
var type = new System.Data.SqlDbType?[3];
var text = jr.ReadObject(n =>
{
switch (n)
{
case "name": name = (string)jr.Value; return(true);
case "last": last = (string)jr.Value; return(true);
case "middle": middle = (string)jr.Value; return(true);
case "alive": alive = (bool)jr.Value; return(true);
case "age": age = (long)jr.Value; return(true);
case "type1": type[0] = jr.ReadEnum <System.Data.SqlDbType>(true); return(true);
case "type2": type[1] = jr.ReadEnum <System.Data.SqlDbType>(true); return(true);
case "type3": type[2] = jr.ReadEnum <System.Data.SqlDbType>(true); return(true);
}
return(false);
},
() => $"{name} {age}");
Assert.Equal("joe 99", text);
Assert.Equal("joe", name);
Assert.Null(last);
Assert.Equal(string.Empty, middle);
Assert.True(alive);
Assert.Equal(99, age);
Assert.Equal(System.Data.SqlDbType.TinyInt, type[0]);
Assert.Null(type[1]);
Assert.Null(type[2]);
}
// Process
using (var tr = new StringReader(jsonObject))
using (var jr = new JsonTextReader(tr))
{
string name = null;
var last = "smith";
var middle = "a";
var alive = false;
var age = -1L;
string text = null;
var type = new System.Data.SqlDbType?[3];
jr.ProcessObject(n =>
{
switch (n)
{
case "name": name = (string)jr.Value; return(true);
case "last": last = (string)jr.Value; return(true);
case "middle": middle = (string)jr.Value; return(true);
case "alive": alive = (bool)jr.Value; return(true);
case "age": age = (long)jr.Value; return(true);
case "type1": type[0] = jr.ReadEnum <System.Data.SqlDbType>(true); return(true);
case "type2": type[1] = jr.ReadEnum <System.Data.SqlDbType>(true); return(true);
case "type3": type[2] = jr.ReadEnum <System.Data.SqlDbType>(true); return(true);
}
return(false);
},
() => text = $"{name} {age}");
Assert.Equal("joe 99", text);
Assert.Equal("joe", name);
Assert.Null(last);
Assert.Equal(string.Empty, middle);
Assert.True(alive);
Assert.Equal(99, age);
Assert.Equal(System.Data.SqlDbType.TinyInt, type[0]);
Assert.Null(type[1]);
Assert.Null(type[2]);
}
}
