Add test checking fail to fetch asset metadata

test/e2e/gemset.nix

@@ -15,10 +15,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0dv12fqv80ids5zhzn23y1wy55qrpwh9wignbllpammkhifqzzl0";
+      sha256 = "03xsp9v8za8xm9ry0vld2ygqaa60c14gq3wjnvll62pxr3ablwj6";
       type = "gem";
     };
-    version = "0.3.2";
+    version = "0.3.7";
   };
   diff-lcs = {
     groups = ["default"];

test/e2e/shell.nix

@@ -6,6 +6,8 @@
 }:
 
 let
+  # To update gemset.nix, run:
+  #   nix-shell --arg bins false --run bundix
   gems = pkgs.bundlerEnv {
     name = "gems-cardano-wallet-e2e";
     gemdir = ./.;

test/manual/TokenMetadataFetchFailed.md

@@ -0,0 +1,89 @@
+
+# Error reported in API when failing to fetch metadata
+
+## OS
+
+Any
+
+## Steps
+
+1. Start cardano-node and cardano-wallet on `testnet` using latest [config](https://hydra.iohk.io/job/Cardano/iohk-nix/cardano-deployment/latest/download/1/index.html). Make sure both are fully synced.
+
+```bash
+$ cardano-node run \
+		--config ./*-config.json \
+		--topology ./*-topology.json \
+		--database-path ./db \
+		--socket-path ./node.socket
+
+$ cardano-wallet serve --port 8090 \
+		--node-socket ../relay1/node.socket \
+		--testnet testnet-byron-genesis.json  \
+		--database ./wallet-db \
+		--token-metadata-server http://localhost/
+```
+Make sure wallet server `--token-metadata-server` points to an url which is not token metadata server.
+
+2. Restore one of the wallets which has some assets.
+
+The following command will decrypt the E2E test fixtures (see LastPass for the password).
+
+```console
+$ export TESTS_E2E_FIXTURES=*******
+$ nix-shell --run "cd test/e2e && rake fixture_wallets_decode"
+$ jq 'map_values(.shelley|join(" "))' test/e2e/fixtures/fixture_wallets.json
+```
+
+This will restore the Shelley E2E test wallet for Linux:
+
+```console
+$ jq '{ name: "E2E Linux Shelley", passphrase: "Secure passphrase", mnemonic_sentence: .linux.shelley }' test/e2e/fixtures/fixture_wallets.json | curl -H 'Content-type: application/json' http://localhost:8091/v2/wallets --data @- | jq .
+{
+  "id": "b1fb863243a9ae451bc4e2e662f60ff217b126e2",
+  "assets": {
+    "total": [ ... ],
+    "available": [ ... ]
+  },
+  ...
+}
+```
+
+3. On the wallet that has some assets check that `"metadata_error":"fetch"` is returned when getting assets.
+ - when listing all assets
+```
+$ curl -X GET http://localhost:8090/v2/wallets/73d38c71e4b8b5d71769622ab4f5bfdedbb7c39d/assets
+
+[
+...
+{
+	"asset_name": "496e737472756d656e74616c4f4b3133",
+	"fingerprint": "asset123svc349ccm6njzpu6w3uzu6cnw87t9l95dmcy",
+	"metadata_error": "fetch",
+	"policy_id": "c7b3f8f9d6a02027e7b5ce2a4da0ff3f68d6d49d4ca58c96c5900b37"
+},
+...
+]
+```
+- when getting asset with only policy id
+```
+$ curl -X GET http://localhost:8090/v2/wallets/73d38c71e4b8b5d71769622ab4f5bfdedbb7c39d/assets/789ef8ae89617f34c07f7f6a12e4d65146f958c0bc15a97b4ff169f1
+
+{
+  "asset_name": "",
+  "fingerprint": "asset1656gm7zkherdvxkn52mhaxkkw343qtkqgv0h8c",
+  "metadata_error": "fetch",
+  "policy_id": "789ef8ae89617f34c07f7f6a12e4d65146f958c0bc15a97b4ff169f1"
+}
+```
+ - when getting asset with policy id and asset name
+```
+$ $ curl -X GET http://localhost:8090/v2/wallets/73d38c71e4b8b5d71769622ab4f5bfdedbb7c39d/assets/005bd7d46219700eccb77cbf7122055a0b26cd064db51e1277cc1b0b/653265636f696e3635
+
+{
+  "asset_name": "653265636f696e3635",
+  "fingerprint": "asset1txvs0057gd63g02q4ttrd86vgxlv3scjua7r03",
+  "metadata_error": "fetch",
+  "policy_id": "005bd7d46219700eccb77cbf7122055a0b26cd064db51e1277cc1b0b"
+}
+
+```