CI: test with GAP 4.13; test with mininimal set of packages loaded (#68)

Also fix tests for older GAP versions

.github/workflows/CI.yml

@@ -25,19 +25,23 @@ jobs:
       matrix:
         gap-branch:
           - master
+          - stable-4.13
           - stable-4.12
           - stable-4.11
           - stable-4.10
           - stable-4.9
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: gap-actions/setup-gap@v2
         with:
           GAP_PKGS_TO_BUILD: "io profiling cvec"
           GAPBRANCH: ${{ matrix.gap-branch }}
       - uses: gap-actions/build-pkg@v1
       - uses: gap-actions/run-pkg-tests@v2
+      - uses: gap-actions/run-pkg-tests@v2
+        with:
+          only-needed: true
       - uses: gap-actions/process-coverage@v2
       - uses: codecov/codecov-action@v3
 
@@ -47,13 +51,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: gap-actions/setup-gap@v2
       - uses: gap-actions/build-pkg-docs@v1
         with:
           use-latex: 'true'
       - name: 'Upload documentation'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: manual
           path: ./doc/manual.pdf

tst/bugfix.tst

@@ -20,7 +20,8 @@ Error, hash function not applicable to key of type integer
 # verify equal vectors either have equal hashes, or at least one gives fail
 # (here for 8 bit vector rep)
 gap> v:=[1..100]*Z(5);;
-gap> w:=CopyToVectorRep(v,5);;
+gap> w:=[1..100]*Z(5);;
+gap> ConvertToVectorRep(w,5);;
 gap> v = w;
 true
 gap> IsPlistRep(v);
@@ -42,7 +43,8 @@ gap> hf.func(v, hf.data);
 
 # same check for GF(2)
 gap> v:=[1..100]*Z(2);;
-gap> w:=CopyToVectorRep(v,2);;
+gap> w:=[1..100]*Z(2);;
+gap> ConvertToVectorRep(w,2);;
 gap> v = w;
 true
 gap> IsPlistRep(v);