Compile and run fptest test framework on Linux

- trigger GHAction on test branch (temporarily)
- run on Linux only (temporarily)
- removed old tests from workflow

.github/workflows/ci.yml

@@ -2,12 +2,14 @@ name: CI
 
 on:
   push:
-    branches: [ master ]
+    branches: [ master, use-fptest ]
   pull_request:
     branches: [ master ]
 
 jobs:
   macos-11-big-sur:
+    # skip job temporarily
+    if: false
     runs-on: macos-11
     steps:
       - name: Install FPC
@@ -112,25 +114,18 @@ jobs:
           verbosity: ewnh
       - name: Install SDL2 library
         run: sudo apt-get install libsdl2-dev
-      - name: Test 1 - Compile Init Test
+      - name: Compile SDL2-for-Pascal Test Framework (fptest) and Test Cases
         uses: suve/[email protected]
         with:
-          source: tests/testinit.pas
+          source: tests/sdl2forpascaltests.pas
+          flags: Fuunits Futests/fptest/src Futests/fptest/3rdparty/epiktimer
           verbosity: ewnh
-      - name: Test 1 - Run Init Test
+      - name: Run SDL2-for-Pascal Tests
         run: |
-          mkdir ~/tmp
-          export XDG_RUNTIME_DIR=~/tmp
-          ./tests/testinit
-      - name: Test 2 - Compile Version Test
-        uses: suve/[email protected]
-        with:
-          source: tests/testversion.pas
-          verbosity: ewnh
-      - name: Test 2 - Run Version Test
-        run: |
-          ./tests/testversion
+          ./tests/sdl2forpascaltests
   windows-2022:
+    # skip job temporarily
+    if: false
     runs-on: windows-2022
     steps:
       - name: Install Lazarus