func testShutdown()

in glean-core/ios/GleanTests/GleanTests.swift [378:440]
44 lines of code
3 McCabe index (conditional complexity)

    func testShutdown() {
        // This test relies on Glean not being initialized
        Glean.shared.testDestroyGleanHandle()

        // We expect 10 pings later
        stubServerReceive { pingType, _ in
            if pingType == "baseline" {
                // Ignore initial "active" baseline ping
                return
            }

            XCTAssertEqual("custom", pingType)

            // Fulfill test's expectation once we parsed the incoming data.
            DispatchQueue.main.async {
                // Let the response get processed before we mark the expectation fulfilled
                self.expectation?.fulfill()
            }
        }

        let customPing = Ping<NoReasonCodes>(
            name: "custom",
            includeClientId: true,
            sendIfEmpty: false,
            preciseTimestamps: true,
            includeInfoSections: true,
            enabled: true,
            schedulesPings: [],
            reasonCodes: [],
            followsCollectionEnabled: true,
            uploaderCapabilities: []
        )

        let counter = CounterMetricType(CommonMetricData(
            category: "telemetry",
            name: "counter_metric",
            sendInPings: ["custom"],
            lifetime: .application,
            disabled: false
        ))

        expectation = expectation(description: "Completed upload")
        expectation?.expectedFulfillmentCount = 10

        // Set the last time the "metrics" ping was sent to now. This is required for us to not
        // send a metrics pings the first time we initialize Glean and to keep it from interfering
        // with these tests.
        let now = Date()
        MetricsPingScheduler(true).updateSentDate(now)
        // Restart glean
        Glean.shared.resetGlean(clearStores: false)

        // Set data and try to submit a custom ping 10x.
        for _ in (0..<10) {
            counter.add(1)
            customPing.submit()
        }

        Glean.shared.shutdown()
        waitForExpectations(timeout: 5.0) { error in
            XCTAssertNil(error, "Test timed out waiting for upload: \(error!)")
        }
    }