Fix wrongly asserting that PushRule::conditions is non-null (#7973)

test/RoomNotifs-test.ts

@@ -0,0 +1,85 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { ConditionKind, PushRuleActionName, TweakName } from "matrix-js-sdk/src/@types/PushRules";
+
+import { stubClient } from "./test-utils";
+import { MatrixClientPeg } from "../src/MatrixClientPeg";
+import { getRoomNotifsState, RoomNotifState } from "../src/RoomNotifs";
+
+describe("RoomNotifs test", () => {
+    beforeEach(() => {
+        stubClient();
+    });
+
+    it("getRoomNotifsState handles rules with no conditions", () => {
+        MatrixClientPeg.get().pushRules = {
+            global: {
+                override: [{
+                    rule_id: "!roomId:server",
+                    enabled: true,
+                    default: false,
+                    actions: [],
+                }],
+            },
+        };
+        expect(getRoomNotifsState("!roomId:server")).toBe(null);
+    });
+
+    it("getRoomNotifsState handles guest users", () => {
+        MatrixClientPeg.get().isGuest.mockReturnValue(true);
+        expect(getRoomNotifsState("!roomId:server")).toBe(RoomNotifState.AllMessages);
+    });
+
+    it("getRoomNotifsState handles mute state", () => {
+        MatrixClientPeg.get().pushRules = {
+            global: {
+                override: [{
+                    rule_id: "!roomId:server",
+                    enabled: true,
+                    default: false,
+                    conditions: [{
+                        kind: ConditionKind.EventMatch,
+                        key: "room_id",
+                        pattern: "!roomId:server",
+                    }],
+                    actions: [PushRuleActionName.DontNotify],
+                }],
+            },
+        };
+        expect(getRoomNotifsState("!roomId:server")).toBe(RoomNotifState.Mute);
+    });
+
+    it("getRoomNotifsState handles mentions only", () => {
+        MatrixClientPeg.get().getRoomPushRule = () => ({
+            rule_id: "!roomId:server",
+            enabled: true,
+            default: false,
+            actions: [PushRuleActionName.DontNotify],
+        });
+        expect(getRoomNotifsState("!roomId:server")).toBe(RoomNotifState.MentionsOnly);
+    });
+
+    it("getRoomNotifsState handles noisy", () => {
+        MatrixClientPeg.get().getRoomPushRule = () => ({
+            rule_id: "!roomId:server",
+            enabled: true,
+            default: false,
+            actions: [{ set_tweak: TweakName.Sound }],
+        });
+        expect(getRoomNotifsState("!roomId:server")).toBe(RoomNotifState.AllMessagesLoud);
+    });
+});