private static void AssertJsonEqual(JsonElement expected, JsonElement actual)
{
JsonValueKind valueKind = expected.ValueKind;
Assert.Equal(valueKind, actual.ValueKind);
switch (valueKind)
{
case JsonValueKind.Object:
var propertyNames = new HashSet <string>();
foreach (JsonProperty property in expected.EnumerateObject())
{
propertyNames.Add(property.Name);
}
foreach (JsonProperty property in actual.EnumerateObject())
{
propertyNames.Add(property.Name);
}
foreach (string name in propertyNames)
{
AssertJsonEqual(expected.GetProperty(name), actual.GetProperty(name));
}
break;
case JsonValueKind.Array:
JsonElement.ArrayEnumerator expectedEnumerator = actual.EnumerateArray();
JsonElement.ArrayEnumerator actualEnumerator = expected.EnumerateArray();
while (expectedEnumerator.MoveNext())
{
Assert.True(actualEnumerator.MoveNext());
AssertJsonEqual(expectedEnumerator.Current, actualEnumerator.Current);
}
Assert.False(actualEnumerator.MoveNext());
break;
case JsonValueKind.String:
Assert.Equal(expected.GetString(), actual.GetString());
break;
case JsonValueKind.Number:
case JsonValueKind.True:
case JsonValueKind.False:
case JsonValueKind.Null:
Assert.Equal(expected.GetRawText(), actual.GetRawText());
break;
default:
Debug.Fail($"Unexpected JsonValueKind: JsonValueKind.{valueKind}.");
break;
}
}
private static void AssertJsonEqualCore(JsonElement expected, JsonElement actual, Stack <object> path)
{
JsonValueKind valueKind = expected.ValueKind;
AssertTrue(passCondition: valueKind == actual.ValueKind);
switch (valueKind)
{
case JsonValueKind.Object:
var expectedProperties = new List <string>();
foreach (JsonProperty property in expected.EnumerateObject())
{
expectedProperties.Add(property.Name);
}
var actualProperties = new List <string>();
foreach (JsonProperty property in actual.EnumerateObject())
{
actualProperties.Add(property.Name);
}
foreach (var property in expectedProperties.Except(actualProperties))
{
AssertTrue(passCondition: false, $"Property \"{property}\" missing from actual object.");
}
foreach (var property in actualProperties.Except(expectedProperties))
{
AssertTrue(passCondition: false, $"Actual object defines additional property \"{property}\".");
}
foreach (string name in expectedProperties)
{
path.Push(name);
AssertJsonEqualCore(expected.GetProperty(name), actual.GetProperty(name), path);
path.Pop();
}
break;
case JsonValueKind.Array:
JsonElement.ArrayEnumerator expectedEnumerator = expected.EnumerateArray();
JsonElement.ArrayEnumerator actualEnumerator = actual.EnumerateArray();
int i = 0;
while (expectedEnumerator.MoveNext())
{
AssertTrue(passCondition: actualEnumerator.MoveNext(), "Actual array contains fewer elements.");
path.Push(i++);
AssertJsonEqualCore(expectedEnumerator.Current, actualEnumerator.Current, path);
path.Pop();
}
AssertTrue(passCondition: !actualEnumerator.MoveNext(), "Actual array contains additional elements.");
break;
case JsonValueKind.String:
AssertTrue(passCondition: expected.GetString() == actual.GetString());
break;
case JsonValueKind.Number:
case JsonValueKind.True:
case JsonValueKind.False:
case JsonValueKind.Null:
AssertTrue(passCondition: expected.GetRawText() == actual.GetRawText());
break;
default:
Debug.Fail($"Unexpected JsonValueKind: JsonValueKind.{valueKind}.");
break;
}
void AssertTrue(bool passCondition, string?message = null)
{
if (!passCondition)
{
message ??= "Expected JSON does not match actual value";
Assert.Fail($"{message}\nExpected JSON: {expected}\n Actual JSON: {actual}\n in JsonPath: {BuildJsonPath(path)}");
}
