feat(#1121): add multiplexed gateway awareness (#1127)

app/src/test/java/com/m57/hermescontrol/data/model/GatewayMultiplexSerializationTest.kt

@@ -0,0 +1,174 @@
+package com.m57.hermescontrol.data.model
+
+import kotlinx.serialization.json.Json
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class GatewayMultiplexSerializationTest {
+    private val json = Json { ignoreUnknownKeys = true }
+
+    @Test
+    fun `status decodes shared gateway profile names`() {
+        val response =
+            json.decodeFromString<StatusResponse>(
+                """
+                {
+                    "gateway_running": true,
+                    "gateway_shared_with": ["default", "coding"]
+                }
+                """.trimIndent(),
+            )
+
+        assertEquals(listOf("default", "coding"), response.gatewaySharedWith)
+    }
+
+    @Test
+    fun `status accepts null and absent shared gateway field`() {
+        val nullResponse = json.decodeFromString<StatusResponse>("""{"gateway_shared_with": null}""")
+        val oldResponse = json.decodeFromString<StatusResponse>("""{"gateway_running": true}""")
+
+        assertNull(nullResponse.gatewaySharedWith)
+        assertNull(oldResponse.gatewaySharedWith)
+    }
+
+    @Test
+    fun `messaging platform decodes backend ingress url`() {
+        val platform =
+            json.decodeFromString<MessagingPlatform>(
+                """
+                {
+                    "id": "telegram",
+                    "name": "Telegram",
+                    "enabled": true,
+                    "configured": true,
+                    "ingress_url": "/some/backend/value"
+                }
+                """.trimIndent(),
+            )
+
+        assertEquals("/some/backend/value", platform.ingressUrl)
+    }
+
+    @Test
+    fun `messaging platform update decodes hot served and old response safely`() {
+        val hotServed =
+            json.decodeFromString<MessagingPlatformUpdateResponse>(
+                """{"ok": true, "platform": "telegram", "hot_served": true}""",
+            )
+        val oldResponse =
+            json.decodeFromString<MessagingPlatformUpdateResponse>("""{"ok": true, "platform": "telegram"}""")
+
+        assertTrue(hotServed.ok)
+        assertEquals("telegram", hotServed.platform)
+        assertTrue(hotServed.hotServed)
+        assertFalse(oldResponse.hotServed)
+    }
+
+    @Test
+    fun `migration plan decodes operational states and ignores low level fields in ui`() {
+        val plan =
+            json.decodeFromString<GatewayMigrationPlan>(
+                """
+                {
+                    "default_home": "/home/hermes",
+                    "profiles": [
+                        {
+                            "profile": "default",
+                            "home": "/home/hermes",
+                            "pid": 1234,
+                            "service": {"kind": "systemd", "system": false},
+                            "services": [
+                                {"kind": "systemd", "system": false},
+                                {"kind": "systemd", "system": true}
+                            ],
+                            "uid": 1000,
+                            "runtime_home": "/home/hermes"
+                        },
+                        {"profile": "coding"}
+                    ],
+                    "multiplex_flag_on": false,
+                    "live_served": null,
+                    "already_multiplexed": false,
+                    "interrupted": true,
+                    "blockers": ["duplicate credential"],
+                    "notices": ["callback URL changes"],
+                    "eligible": false,
+                    "command": "hermes gateway migrate --multiplex"
+                }
+                """.trimIndent(),
+            )
+
+        assertEquals(listOf("default", "coding"), plan.profiles.map { it.profile })
+        assertEquals(1234, plan.profiles.first().pid)
+        assertEquals(
+            2,
+            plan.profiles
+                .first()
+                .services.size,
+        )
+        assertEquals(
+            "systemd",
+            plan.profiles
+                .first()
+                .services[0]
+                .kind,
+        )
+        assertFalse(
+            plan.profiles
+                .first()
+                .services[0]
+                .system ?: true,
+        )
+        assertTrue(
+            plan.profiles
+                .first()
+                .services[1]
+                .system == true,
+        )
+        assertTrue(plan.interrupted)
+        assertEquals(listOf("duplicate credential"), plan.blockers)
+        assertEquals(listOf("callback URL changes"), plan.notices)
+        assertFalse(plan.eligible)
+    }
+
+    @Test
+    fun `migration profile service fields remain optional`() {
+        val emptyServices =
+            json.decodeFromString<GatewayMigrationPlan>(
+                """
+                {
+                    "profiles": [
+                        {"profile": "default", "service": null, "services": []}
+                    ]
+                }
+                """.trimIndent(),
+            )
+        val missingServices =
+            json.decodeFromString<GatewayMigrationPlan>(
+                """
+                {
+                    "profiles": [
+                        {"profile": "default"}
+                    ]
+                }
+                """.trimIndent(),
+            )
+
+        assertNull(emptyServices.profiles.first().service)
+        assertTrue(
+            emptyServices.profiles
+                .first()
+                .services
+                .isEmpty(),
+        )
+        assertTrue(
+            missingServices.profiles
+                .first()
+                .services
+                .isEmpty(),
+        )
+    }
+}