test(chain spec mutator): test components + add to CI

.gitlab-ci.yml

@@ -459,3 +459,34 @@ db-snapshot:
   retry: 2
   tags:
     - zombienet-polkadot-integration-test
+
+zombienet-chain-spec-custom-modification:
+  stage: deploy
+  <<: *kubernetes-env
+  image: "paritypr/zombienet:${CI_COMMIT_SHORT_SHA}"
+  rules:
+    - if: $CI_PIPELINE_SOURCE == "schedule"
+    - if: $CI_COMMIT_REF_NAME == "master"
+    - if: $CI_COMMIT_REF_NAME =~ /^[0-9]+$/ # PRs
+    - if: $CI_COMMIT_REF_NAME =~ /^v[0-9]+\.[0-9]+.*$/ # i.e. v1.0, v2.1rc1
+  # needs:
+  #   - job:                         publish-docker-pr
+
+  variables:
+    GH_DIR: "https://github.com/paritytech/zombienet/tree/${CI_COMMIT_SHORT_SHA}/tests"
+
+  before_script:
+    - echo "Zombienet Tests Custom Chain Spec Modification"
+    - echo "paritypr/zombienet:${CI_COMMIT_SHORT_SHA}"
+    - echo "${GH_DIR}"
+    - export DEBUG=zombie*
+    - export ZOMBIENET_INTEGRATION_TEST_IMAGE="docker.io/paritypr/polkadot-debug:master"
+    - export COL_IMAGE="docker.io/paritypr/colander:master"
+
+  script:
+    - /home/nonroot/zombie-net/scripts/ci/run-test-local-env-manager.sh
+      --test="0014-chain-spec-modification.zndsl"
+  allow_failure: true
+  retry: 2
+  tags:
+    - zombienet-polkadot-integration-test

tests/0014-chain-spec-modification.toml

@@ -0,0 +1,18 @@
+[relaychain]
+default_image = "docker.io/parity/polkadot:latest"
+default_command = "polkadot"
+default_args = [ "-lparachain=debug" ]
+chain = "rococo-local"
+
+chain_spec_modifier_commands = [[
+  "./change-name-in-chain-spec.sh",
+  "{{'plain'|chainSpec}}",
+]]
+
+  [[relaychain.nodes]]
+  name = "alice"
+  validator = true
+
+  [[relaychain.nodes]]
+  name = "bob"
+  validator = true

tests/0014-chain-spec-modification.zndsl

@@ -0,0 +1,10 @@
+Description: Chain Spec Modification
+Network: ./0014-chain-spec-modification.toml
+Creds: config
+
+
+alice: is up
+bob: is up
+alice: log line matches "Imported #[0-9]+" within 10 seconds
+
+alice: js-script ./check-testnet-name.js with "Tentset Lacol Ococor" return is true

tests/change-name-in-chain-spec.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# The first argument sent to the script must be the path of the chain spec
+chain_spec_path = $1
+# Assume that the name 
+old_name="Rococo Local Testnet"
+# Set the new name for the network
+new_name="Tentset Lacol Ococor"
+
+# Replace the name field in the JSON file
+sed -i "s/\"name\": \"$old_name\"/\"name\": \"$new_name\"/" $chain_spec_path

tests/check-testnet-name.js

@@ -0,0 +1,12 @@
+// Check if the testnet's name is the same as the expected name from the args
+async function run(nodeName, networkInfo, args) {
+    const {wsUri, userDefinedTypes} = networkInfo.nodesByName[nodeName];
+    const api = await zombie.connect(wsUri, userDefinedTypes);
+
+    const expectedName = args[0] ?? "Rococo Local Testnet";
+    const testnetName = await api.rpc.system.chain();
+
+    return testnetName == expectedName;
+}
+
+module.exports = { run }