FIX: Anons should see the Topic slow mode notice. (#12460)

app/assets/javascripts/discourse/app/components/slow-mode-info.js

@@ -11,9 +11,9 @@ export default Component.extend({
     return durationTextFromSeconds(seconds);
   },
 
-  @discourseComputed("user", "topic.slow_mode_seconds", "topic.closed")
-  showSlowModeNotice(user, seconds, closed) {
-    return user && seconds > 0 && !closed;
+  @discourseComputed("topic.slow_mode_seconds", "topic.closed")
+  showSlowModeNotice(seconds, closed) {
+    return seconds > 0 && !closed;
   },
 
   @action

app/assets/javascripts/discourse/tests/integration/components/slow-mode-info-test.js

@@ -0,0 +1,80 @@
+import componentTest, {
+  setupRenderingTest,
+} from "discourse/tests/helpers/component-test";
+import {
+  discourseModule,
+  queryAll,
+} from "discourse/tests/helpers/qunit-helpers";
+
+discourseModule("Integration | Component | slow-mode-info", function (hooks) {
+  setupRenderingTest(hooks);
+
+  componentTest("doesn't render if the topic is closed", {
+    template: "{{slow-mode-info topic=topic}}",
+
+    beforeEach() {
+      this.set("topic", { slow_mode_seconds: 3600, closed: true });
+    },
+
+    test(assert) {
+      assert.ok(!exists(".slow-mode-heading"), "it doesn't render the notice");
+    },
+  });
+
+  componentTest("doesn't render if the slow mode is disabled", {
+    template: "{{slow-mode-info topic=topic}}",
+
+    beforeEach() {
+      this.set("topic", { slow_mode_seconds: 0, closed: false });
+    },
+
+    test(assert) {
+      assert.ok(!exists(".slow-mode-heading"), "it doesn't render the notice");
+    },
+  });
+
+  componentTest("renders if slow mode is enabled", {
+    template: "{{slow-mode-info topic=topic}}",
+
+    beforeEach() {
+      this.set("topic", { slow_mode_seconds: 3600, closed: false });
+    },
+
+    test(assert) {
+      assert.ok(queryAll(".slow-mode-heading").length === 1);
+    },
+  });
+
+  componentTest("staff and TL4 users can disable slow mode", {
+    template: "{{slow-mode-info topic=topic user=user}}",
+
+    beforeEach() {
+      this.setProperties({
+        topic: { slow_mode_seconds: 3600, closed: false },
+        user: { canManageTopic: true },
+      });
+    },
+
+    test(assert) {
+      assert.ok(queryAll(".slow-mode-remove").length === 1);
+    },
+  });
+
+  componentTest("regular users can't disable slow mode", {
+    template: "{{slow-mode-info topic=topic user=user}}",
+
+    beforeEach() {
+      this.setProperties({
+        topic: { slow_mode_seconds: 3600, closed: false },
+        user: { canManageTopic: false },
+      });
+    },
+
+    test(assert) {
+      assert.ok(
+        !exists(".slow-mode-remove"),
+        "it doesn't let you disable slow mode"
+      );
+    },
+  });
+});