functionaltests: increase timeout and print error logs (elastic#15305) (elastic#15323)

* increase timeout to 30 minutes

* print retrieved error logs

* Update functionaltests/8_15_test.go

Co-authored-by: Marc Lopez Rubio <[email protected]>

---------

Co-authored-by: Marc Lopez Rubio <[email protected]>
(cherry picked from commit 8615428)

Co-authored-by: Edoardo Tenani <[email protected]>

Author: mergify[bot]

.github/workflows/functional-tests.yml

@@ -47,7 +47,7 @@ jobs:
 
       - run: |
           export TF_VAR_CREATED_DATE=$(date +%s)
-          cd functionaltests && go test -v -timeout=20m -target "${{ matrix.environment }}" ./
+          cd functionaltests && go test -v -timeout=30m -target "${{ matrix.environment }}" ./
 
   notify:
     if: always()

functionaltests/8_15_test.go

@@ -148,5 +148,10 @@ func TestUpgrade_8_15_4_to_8_16_0(t *testing.T) {
 
 	res, err := ecc.GetESErrorLogs(ctx)
 	require.NoError(t, err)
-	assert.Zero(t, res.Hits.Total.Value)
+	if !assert.Zero(t, res.Hits.Total.Value, "expected no error logs, but found some") {
+		t.Log("found error logs:")
+		for _, h := range res.Hits.Hits {
+			t.Log(string(h.Source_))
+		}
+	}
 }