From 5f71e1b27fa27489208fe878810ad4c2aca2dd09 Mon Sep 17 00:00:00 2001
From: Andrei Vereha <avereha@gmail.com>
Date: Sat, 13 Mar 2021 13:16:46 +0100
Subject: [PATCH] dash ble: add tests for payload splitting and joining

---
 .../driver/comm/message/PayloadJoinerTest.kt  | 22 ++++++++++++++++
 .../comm/message/PayloadSplitJoinTest.kt      | 26 +++++++++++++++++++
 .../comm/message/PayloadSplitterTest.kt       | 24 +++++++++++++++++
 3 files changed, 72 insertions(+)
 create mode 100644 omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadJoinerTest.kt
 create mode 100644 omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadSplitJoinTest.kt
 create mode 100644 omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadSplitterTest.kt

diff --git a/omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadJoinerTest.kt b/omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadJoinerTest.kt
new file mode 100644
index 0000000000..8989791512
--- /dev/null
+++ b/omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadJoinerTest.kt
@@ -0,0 +1,22 @@
+package info.nightscout.androidaps.plugins.pump.omnipod.dash.driver.comm.message
+
+import com.google.crypto.tink.subtle.Hex
+import info.nightscout.androidaps.plugins.pump.omnipod.dash.driver.comm.io.PayloadJoiner
+import info.nightscout.androidaps.utils.extensions.toHex
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class PayloadJoinerTest {
+
+    @Test fun testJoiner() {
+        val f1 = Hex.decode("00,01,54,57,10,23,03,00,00,c0,ff,ff,ff,fe,08,20,2e,a8,50,30".replace(",", ""))
+        val f2 = Hex.decode("01,04,bc,20,1f,f6,3d,00,01,a5,ff,ff,ff,fe,08,20,2e,a8,50,30".replace(",", ""))
+        val payload = "54,57,10,23,03,00,00,c0,ff,ff,ff,fe,08,20,2e,a8,50,30,3d,00,01,a5".replace(",", "")
+        val joiner = PayloadJoiner(f1)
+        joiner.accumulate(f2)
+        val actual = joiner.finalize()
+        assertEquals(payload, actual.toHex())
+    }
+}
+
+
diff --git a/omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadSplitJoinTest.kt b/omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadSplitJoinTest.kt
new file mode 100644
index 0000000000..9d7ba06d0c
--- /dev/null
+++ b/omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadSplitJoinTest.kt
@@ -0,0 +1,26 @@
+package info.nightscout.androidaps.plugins.pump.omnipod.dash.driver.comm.message
+
+import info.nightscout.androidaps.plugins.pump.omnipod.dash.driver.comm.io.PayloadJoiner
+import info.nightscout.androidaps.utils.extensions.toHex
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import java.util.*
+
+class PayloadSplitJoinTest {
+
+    val random = Random(42)
+    @Test fun testSplitAndJoinBack() {
+        for (s in 0..250) {
+            val payload = ByteArray(s)
+            random.nextBytes(payload)
+            val splitter = PayloadSplitter(payload)
+            val packets = splitter.splitInPackets()
+            val joiner = PayloadJoiner(packets.get(0).asByteArray())
+            for (p in packets.subList(1, packets.size)) {
+                joiner.accumulate(p.asByteArray())
+            }
+            val got = joiner.finalize()
+            assertEquals(got.toHex(), payload.toHex())
+        }
+    }
+}
\ No newline at end of file
diff --git a/omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadSplitterTest.kt b/omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadSplitterTest.kt
new file mode 100644
index 0000000000..de6e570134
--- /dev/null
+++ b/omnipod-dash/src/test/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/message/PayloadSplitterTest.kt
@@ -0,0 +1,24 @@
+package info.nightscout.androidaps.plugins.pump.omnipod.dash.driver.comm.message
+
+import com.google.crypto.tink.subtle.Hex
+import info.nightscout.androidaps.utils.extensions.toHex
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class PayloadSplitterTest {
+    @Test fun testSplitter() {
+        val f1 = "00,01,54,57,10,23,03,00,00,c0,ff,ff,ff,fe,08,20,2e,a8,50,30".replace(",", "")
+        val f2 = "01,04,bc,20,1f,f6,3d,00,01,a5,ff,ff,ff,fe,08,20,2e,a8,50,30".replace(",", "")
+        val payload = Hex.decode("54,57,10,23,03,00,00,c0,ff,ff,ff,fe,08,20,2e,a8,50,30,3d,00,01,a5".replace(",",""))
+
+        val splitter = PayloadSplitter(payload)
+        val packets = splitter.splitInPackets()
+
+        assertEquals(packets.size, 2)
+        assertEquals(f1, packets.get(0).asByteArray().toHex())
+        val p2 =  packets.get(1).asByteArray()
+        assertTrue(p2.size >= 10)
+        assertEquals(f2.subSequence(0, 20),p2.copyOfRange(0, 10).toHex())
+    }
+}
\ No newline at end of file