Code for request.testBox fail

Adam.cfc

component {

	request.testBox.debug("in pseudo constructor")

	static {
		request.testBox.debug("in static constructor")
	}

	function init() {
		request.testBox.debug("in constructor")
	}

	function testMe() {
		request.testBox.debug("in method")
	}

}

AdamTest.cfc

import test.BaseSpec

component extends=BaseSpec {

	function run() {
		describe("Testing request.testbox.debug", () => {
			it("should write to debug buffer", () => {
				request.testbox.debug("hi?")

				expect(this.$debugBuffer).toHaveLength(1)
				expect(this.$debugBuffer[1].data).toBe("hi?")
			})

			fit("should write to debug buffer when called from a SUT", () => {

				sut = new Adam()
				sut.testMe()

				messagesOnly = this.$debugBuffer.map((debugEntry) => debugEntry.data)

				expect(messagesOnly).toHaveLength(4)
				expect(messagesOnly).toBe([
					"in static constructor",
					"in pseudo constructor",
					"in constructor",
					"in method"
				])
			})
		})
	}
}

error.txt

Component [test.unit.Adam] has no accessible Member with name [$DEBUGBUFFER]

Stacktrace	The Error Occurred in
/app/testbox/system/BaseSpec.cfc: line 1451
1449: // add to debug output
1450: arrayAppend(
1451: this.$debugBuffer,
1452: {
1453: data : newVar,