0.2.51 - update checker fixes

app/src/test/java/com/ponzischeme89/memby/update/UpdateCheckScheduleTest.kt

@@ -0,0 +1,35 @@
+package com.ponzischeme89.memby.update
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class UpdateCheckScheduleTest {
+    @Test
+    fun `a real verdict uses the regular live policy poll`() {
+        assertEquals(30_000L, delay(requiredAttempts = 0, failedAttempts = 0))
+    }
+
+    @Test
+    fun `a timed out launch check retries promptly`() {
+        assertEquals(5_000L, delay(requiredAttempts = 0, failedAttempts = 1))
+    }
+
+    @Test
+    fun `repeated failures settle onto bounded backoff`() {
+        assertEquals(60_000L, delay(requiredAttempts = 0, failedAttempts = 5))
+    }
+
+    @Test
+    fun `a retired build keeps the urgent schedule even after a successful empty check`() {
+        assertEquals(5_000L, delay(requiredAttempts = 1, failedAttempts = 0))
+    }
+
+    private fun delay(requiredAttempts: Int, failedAttempts: Int) = nextUpdateCheckDelay(
+        requiredAttempts = requiredAttempts,
+        failedAttempts = failedAttempts,
+        fastAttempts = 4,
+        fastRetryMillis = 5_000L,
+        backoffMillis = 60_000L,
+        regularPollMillis = 30_000L,
+    )
+}