Fix unit test package scripts (#12278)

This PR fixes our local unit test package scripts. When the state migration unit tests were migrated to Jest in #12106, it left the `test:unit` script in a broken state, because it didn't tell `mocha` to ignore the state migration tests.

Arguably, that script was already broken, since the most reasonably expectation from its name is that it runs _all_ unit tests. The PR makes it so that it does just that, by means of `concurrently`.

Unfortunately, `concurrently` only outputs errors from child processes once (at the time when they exit, https://github.com/open-cli-tools/concurrently/issues/134). This means that we have to search/navigate the output for this combined script to identify the failure. That said, it's better than the status quo.

package.json

@@ -24,9 +24,10 @@
     "dapp-chain": "GANACHE_ARGS='-b 2' concurrently -k -n ganache,dapp -p '[{time}][{name}]' 'yarn ganache:start' 'sleep 5 && yarn dapp'",
     "forwarder": "node ./development/static-server.js ./node_modules/@metamask/forwarder/dist/ --port 9010",
     "dapp-forwarder": "concurrently -k -n forwarder,dapp -p '[{time}][{name}]' 'yarn forwarder' 'yarn dapp'",
-    "test:unit": "mocha --exit --require test/env.js --require test/setup.js --recursive './app/**/*.test.js'",
+    "test:unit": "./test/test-unit-combined.sh",
+    "test:unit:jest": "./test/test-unit-jest.sh",
     "test:unit:global": "mocha --exit --require test/env.js --require test/setup.js --recursive test/unit-global/*.test.js",
-    "test:unit:jest": "./test/run-jest.sh",
+    "test:unit:mocha": "mocha --exit --require test/env.js --require test/setup.js --ignore './app/scripts/migrations/*.test.js' --recursive './app/**/*.test.js'",
     "test:unit:lax": "mocha --exit --require test/env.js --require test/setup.js --ignore './app/scripts/controllers/permissions/*.test.js' --ignore './app/scripts/migrations/*.test.js' --recursive './app/**/*.test.js'",
     "test:unit:strict": "mocha --exit --require test/env.js --require test/setup.js --recursive './app/scripts/controllers/permissions/*.test.js'",
     "test:unit:path": "mocha --exit --require test/env.js --require test/setup.js --recursive",

test/test-unit-combined.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+set -x
+set -e
+set -u
+set -o pipefail
+
+concurrently --raw -n mocha,jest,global \
+  "yarn test:unit:mocha" \
+  "yarn test:unit:jest" \
+  "yarn test:unit:global"

test/test-unit-jest.sh

@@ -5,6 +5,6 @@ set -e
 set -u
 set -o pipefail
 
-concurrently \
+concurrently -n production,development \
   "jest --config=./jest.config.js $*" \
   "jest --config=./development/jest.config.js $*"