Disable running tests on CI (most are broken)

Connecting to the mock server on localhost fails on CI:
"Network.Socket.connect: <socket: NNN>: does not exist (Connection refused)"

Author: andreasabel

.github/workflows/haskell-ci.yml

@@ -239,9 +239,6 @@ jobs:
       - name: build
         run: |
           $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --write-ghc-environment-files=always
-      - name: tests
-        run: |
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then $CABAL v2-test $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --test-show-details=direct ; fi
       - name: cabal check
         run: |
           cd ${PKGDIR_http_io_streams} || false

.github/workflows/stack.yml

@@ -84,8 +84,9 @@ jobs:
     - name: Build tests
       run:  stack test ${{ env.XARGS }} --no-run-tests
 
-    - name: Run tests
-      run:  stack test ${{ env.XARGS }}
+    # Andreas, 2025-08-03, tests are broken on CI images.
+    # - name: Run tests
+    #   run:  stack test ${{ env.XARGS }}
 
     - name: Save cache
       uses: actions/cache/save@v4

cabal.haskell-ci

@@ -8,6 +8,13 @@ installed: +all
 -- library entropy does not build with GHC 8.0
 tests: >=8.2
 
+-- Andreas, 2025-08-03
+-- Tests are broken on CI for unknown reasons.
+-- "Network.Socket.connect: <socket: NNN>: does not exist (Connection refused)"
+-- Maybe "localhost" (MockServer) does not resolve on these images?
+-- https://stackoverflow.com/questions/33874370/exception-connect-does-not-exist-connection-refused-when-trying-to-connect-t
+run-tests: False
+
 -- -- Test core libraries in versions newer than shipped with GHC
 -- constraint-set latest-core-libs-Sep-2023
 --   constraints: bytestring >= 0.12