Update to k6-core master and fix logCache logger

This commit fixes an incompatibility detected with k6 core usage of
state.Logger, which has been modified in grafana/k6#2960.

Co-authored-by: İnanç Gümüş <inanc.gumus@grafana.com>

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/mccutchen/go-httpbin v1.1.2-0.20190116014521-c5cb2f4802fa
 	github.com/sirupsen/logrus v1.9.0
 	github.com/stretchr/testify v1.8.2
-	go.k6.io/k6 v0.43.2-0.20230315144817-12f5dd846338
+	go.k6.io/k6 v0.43.2-0.20230331123120-988f2f6b5f6c
 	golang.org/x/net v0.7.0
 	golang.org/x/sync v0.0.0-20220819030929-7fc1605a5dde
 	gopkg.in/guregu/null.v3 v3.3.0

go.sum

@@ -124,8 +124,8 @@ github.com/tidwall/pretty v1.2.1 h1:qjsOFOWWQl+N3RsoF5/ssm1pHmJJwhjlSbZ51I6wMl4=
 github.com/tidwall/pretty v1.2.1/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-go.k6.io/k6 v0.43.2-0.20230315144817-12f5dd846338 h1:U++K4C7gWBx/BSiJEvPq67qAqVwi2nILfqHjv5sIew8=
-go.k6.io/k6 v0.43.2-0.20230315144817-12f5dd846338/go.mod h1:vJpKriw44UO0oN63Kp7ES4cxXULAe/S6k9hCVR5hQWs=
+go.k6.io/k6 v0.43.2-0.20230331123120-988f2f6b5f6c h1:C09qdiSJsWMKPyFUDxUdh39jRbEvggWJpRexADeDyIg=
+go.k6.io/k6 v0.43.2-0.20230331123120-988f2f6b5f6c/go.mod h1:Azozhj76R5Fa1pPatdrTgl7+cL5JHBTIqp4aWroBMw4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=

tests/logrus_hook.go

@@ -74,10 +74,21 @@ var _ logrus.Hook = &logCache{}
 
 // attachLogCache sets logger to DebugLevel, attaches a LogCache hook and
 // returns it.
-func attachLogCache(logger *logrus.Logger) *logCache {
+func attachLogCache(tb testing.TB, fl logrus.FieldLogger) *logCache {
+	tb.Helper()
+
+	var ok bool
+	var logger *logrus.Logger
+	if logger, ok = fl.(*logrus.Logger); !ok {
+		// TODO: Fix this to always work with logrus.FieldLoger.
+		// See: https://github.com/grafana/xk6-browser/issues/818
+		tb.Fatalf("logCache: unexpected logger type: %T", fl)
+	}
+
 	lc := &logCache{HookedLevels: []logrus.Level{logrus.DebugLevel, logrus.WarnLevel}}
 	logger.SetLevel(logrus.DebugLevel)
 	logger.AddHook(lc)
 	logger.SetOutput(ioutil.Discard)
+
 	return lc
 }

tests/test_browser.go

@@ -108,7 +108,7 @@ func newTestBrowser(tb testing.TB, opts ...any) *testBrowser {
 	)
 
 	if enableLogCache {
-		lc = attachLogCache(state.Logger)
+		lc = attachLogCache(tb, state.Logger)
 	}
 	if enableHTTPMultiBin {
 		testServer = k6httpmultibin.NewHTTPMultiBin(tb)