Revert "refactor: move unit tests to separate job"

This reverts commit 6c87b540b4.

ci/dev/test-unit.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+main() {
+  cd "$(dirname "$0")/../.."
+
+  source ./ci/lib.sh
+
+  # Our code imports from `out` in order to work during development but if you
+  # have only built for production you will have not have this directory.  In
+  # that case symlink `out` to a production build directory.
+  if [[ ! -e lib/vscode/out ]]; then
+    pushd lib
+    local out=(vscode-reh-web-*)
+    if [[ -d "${out[0]}" ]]; then
+      ln -s "../${out[0]}/out" ./vscode/out
+    else
+      echo "Could not find lib/vscode/out or lib/vscode-reh-web-*"
+      echo "Code must be built before running unit tests"
+      # exit 1
+    fi
+    popd
+  fi
+
+  # We must keep jest in a sub-directory. See ../../test/package.json for more
+  # information. We must also run it from the root otherwise coverage will not
+  # include our source files.
+  CS_DISABLE_PLUGINS=true ./test/node_modules/.bin/jest "$@" --testRegex "./test/unit/.*ts" --testPathIgnorePatterns "./test/unit/node/test-plugin"
+}
+
+main "$@"