ci: run zunit tests via gnu parallel

Signed-off-by: Vladislav Doster <mvdoster@gmail.com>

.github/workflows/tests.yaml

@@ -5,6 +5,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
+  HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK: 1
   TERM: xterm-256color
 
 on:
@@ -43,25 +44,21 @@ jobs:
         if: runner.os == 'Linux'
         run: |
           sudo apt-get update --yes
-          sudo apt-get install --yes \
+          sudo apt-get install --no-install-recommends --yes \
             autoconf automake autotools-dev \
             build-essential byacc\
-            cmake curl \
             file \
             gcc gettext glibc-source grep \
             libc6 libc6-dev libevent-dev libncurses5-dev libncursesw5-dev libtool libuvc0 lua5.1 \
             m4 \
             ninja-build \
             pkg-config \
-            unzip \
-            xz-utils \
-            zsh
+            xz-utils
 
       - name: "install dependencies"
         id: install-deps
         run: |
-          export HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1
-          brew install --force --overwrite autoconf automake binutils byacc cmake coreutils curl gettext gnu-sed libevent libtool libuv lua lua@5.1 make ninja ncurses pkg-config texinfo unzip xz zsh
+          brew install --force --overwrite autoconf automake binutils byacc cmake coreutils curl gettext gnu-sed libevent libtool libuv lua lua@5.1 make ncurses ninja parallel pkg-config texinfo unzip xz zsh
           brew link --force --overwrite ncurses
 
       - name: "install zunit"
@@ -69,22 +66,14 @@ jobs:
         run: |
           mkdir -p "$HOME/.local/bin" && echo "$HOME/.local/bin" >> $GITHUB_PATH
           git clone --depth 1 https://github.com/zdharma-continuum/zunit; cd ./zunit
-          zsh -c -l './build.zsh' && sudo chmod u+x ./zunit && cp ./zunit "$HOME/.local/bin/"
+          zsh -l -c './build.zsh' && sudo chmod u+x ./zunit && cp ./zunit "$HOME/.local/bin/"
 
-      - name: "commands"
-        run: zunit run tests/commands.zunit
-
-      - name: "plugins"
-        run: zunit run tests/plugins.zunit
-
-      - name: "gh-r"
-        run: zunit run tests/gh-r.zunit
-
-      - name: "annexes"
-        run: zunit run tests/annexes.zunit
-
-      - name: "ices"
-        run: zunit run tests/ices.zunit
-
-      - name: "snippets"
-        run: zunit run tests/snippets.zunit
+      - name: Run tests
+        shell: zsh {0}
+        run: |
+          command -p ls -1 ./tests/*zunit \
+            | parallel \
+            --jobs=4 \
+            --keep-order \
+            --line-buffer \
+            $HOME/.local/bin/zunit run