LateApexEarlySpeed.Xunit.Assertion.Json 1.0.4

Provide fluent json assertion for Xunit.

There were already json related test assertion libraries, most ones were asserting json's equivalent.

However, imagine what you would test is other factors besides of equivalent on whole json, remember the assertion methods in Xunit (Contains, AllOf, IsTypeOf ..) at ANY json node location.

This library can assert json node data in any node location, not only against whole json. Also, you won't write multiple assertion code lines for different json node, you just need to have one JsonAssertion.Meet(...) method then inside it, you specify what you would test, all in one place. When assertion failed, library will throw detailed assert exception which reports failed json node location.

JsonAssertion.Meet(b =>
                        b.IsJsonObject()
                            .HasProperty("p1", b => b.IsJsonObject())
                            .HasProperty("p2", b => b.IsJsonNumber().IsLessThan(5)),
                """
                {
                  "p1": {},
                  "p2": 5.1
                }
                """);

LateApexEarlySpeed.Xunit.Assertion.Json.JsonAssertException
JsonAssertion.Meet() Failure: Instance '5.1' is equal to or greater than '5', location (in json pointer format): '/p2'

Also it supports json-equivalent assertion:

JsonAssertion.Equivalent("""
                {
                  "a": 1,
                  "b": 2
                }
                """,
                """
                {
                  "b": 2,
                  "a": 1
                }
                """);

Available assertion methods for json:

• NotJsonNull
• IsJsonTrue
• IsJsonFalse
• IsJsonBoolean
• IsJsonNull
• IsJsonString:
  • Equal
  • IsIn
  • HasMaxLength
  • HasMinLength
  • HasPattern
  • HasCustomValidation
• IsJsonNumber:
  • Equal
  • IsIn
  • IsGreaterThan
  • IsLessThan
  • NotGreaterThan
  • NotLessThan
  • MultipleOf
  • HasCustomValidation
• IsJsonArray:
  • SerializationEquivalent
  • HasItems
  • HasLength
  • HasMaxLength
  • HasMinLength
  • HasUniqueItems
  • HasCustomValidation
  • Contains
  • NotContains
  • Equivalent
• IsJsonObject:
  • SerializationEquivalent
  • HasProperty
  • HasCustomValidation
  • Equivalent
  • HasNoProperty
• Or

There are HasCustomValidation() overloads which can be used to create more custom validation logic unit.