feat: add tests for linux (#39)

* feat: add dummy test for linux

* feat: add multiple test execution

* fix: update exec of multiple scripts for linux

* fix: execute tests with code from the branch

* fix: fail test exec if at least one test fail

* fix: typo

* wip: test if symlink work

* feat: add new test for check setup of light256 theme

* feat: when theme enabled and not set it default to dark256

* feat: increase tests coverage of checking themes activation

* refactor: rename tests_linux job

* chore: add changelog entry

tests/run_all_linux_tests.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+main() {
+  set -e # exit on error
+  declare -i _countFailures
+  local _files
+  _countFailures=0
+  _files=$(find "$CURRENT_DIR/linux" -name "test_*" -type f)
+  for test in $_files; do
+    printf "\n"
+    printf "\n=============================================="
+    printf "\n %s" "$test"
+    printf "\n=============================================="
+    printf "\n"
+    bash -c "$test"
+
+    # run all and count failures
+    retVal=$?
+    if [ $retVal -eq 1 ]; then
+      _countFailures+=1
+    fi
+  done
+
+  # check if anything failed and fail
+  if [ "$_countFailures" -gt 0 ]; then
+    exit 1
+  fi
+}
+
+main "$@"