[web] add connection tests

1 files changed, 41 insertions, 0 deletions

diff --git a/web/src/js/__tests__/ducks/connectionSpec.js b/web/src/js/__tests__/ducks/connectionSpec.js
new file mode 100644
index 00000000..d087e867
--- /dev/null
+++ b/web/src/js/__tests__/ducks/connectionSpec.js
@@ -0,0 +1,41 @@
+import reduceConnection from "../../ducks/connection"
+import * as ConnectionActions from "../../ducks/connection"
+import { ConnectionState } from "../../ducks/connection"
+
+describe('connection reducer', () => {
+    it('should return initial state', () => {
+        expect(reduceConnection(undefined, {})).toEqual({
+            state: ConnectionState.INIT,
+            message: null,
+        })
+    })
+
+    it('should handle start fetch', () => {
+        expect(reduceConnection(undefined, ConnectionActions.startFetching())).toEqual({
+            state: ConnectionState.FETCHING,
+            message: undefined,
+        })
+    })
+
+    it('should handle connection established', () => {
+        expect(reduceConnection(undefined, ConnectionActions.connectionEstablished())).toEqual({
+            state: ConnectionState.ESTABLISHED,
+            message: undefined,
+        })
+    })
+
+    it('should handle connection error', () => {
+        expect(reduceConnection(undefined, ConnectionActions.connectionError("no internet"))).toEqual({
+            state: ConnectionState.ERROR,
+            message: "no internet",
+        })
+    })
+
+    it('should handle offline mode', () => {
+        expect(reduceConnection(undefined, ConnectionActions.setOffline())).toEqual({
+            state: ConnectionState.OFFLINE,
+            message: undefined,
+        })
+    })
+
+})