[kn-admin]Add e2e tests for kn admin plugin

plugins/admin/go.mod

@@ -3,8 +3,9 @@ module knative.dev/client-contrib/plugins/admin
 go 1.14
 
 require (
+	github.com/maximilien/kn-source-pkg v0.4.8
 	github.com/mitchellh/go-homedir v1.1.0
-	github.com/spf13/cobra v0.0.5
+	github.com/spf13/cobra v0.0.6
 	github.com/spf13/viper v1.6.2
 	gopkg.in/yaml.v2 v2.2.8
 	gotest.tools v2.2.0+incompatible

plugins/admin/test/e2e-tests.sh

@@ -0,0 +1,52 @@
+# Copyright 2020 The Knative Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# ===============================================
+# Add you integration tests here
+
+source $TEST_INFRA_SCRIPTS/e2e-tests.sh
+
+export PATH=$PWD:$PATH
+
+dir=$(dirname "${BASH_SOURCE[0]}")
+base=$(cd "$dir/.." && pwd)
+
+echo "TEST_INFRA_SCRIPTS: $TEST_INFRA_SCRIPTS"
+echo "Testing kn-admin plugin"
+cd ${REPO_ROOT_DIR}
+
+function plugin_test_setup {
+  # TODO: add setup steps
+}
+
+run() {
+
+  header "Running plugin kn-admin e2e tests for Knative Serving $KNATIVE_SERVING_VERSION and Eventing $KNATIVE_EVENTING_VERSION"
+
+  # Will create and delete this namespace (used for all tests, modify if you want a different one used)
+  export KN_E2E_NAMESPACE=kne2etests
+
+  echo "🧪  Setup"
+  plugin_test_setup
+  echo "🧪  Build"
+  ./hack/build.sh -f
+  echo "🧪  Testing"
+  go_test_e2e -timeout=45m ./test/e2e || fail_test
+  echo "🧪  Teardown"
+  plugin_test_teardown
+  success
+}
+
+# Fire up
+run $@

plugins/admin/test/e2e/kn_admin_test.go

@@ -0,0 +1,76 @@
+// Copyright 2020 The Knative Authors
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build e2e
+// +build !eventing
+
+package e2e
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	testcommon "github.com/maximilien/kn-source-pkg/test/e2e"
+	"gotest.tools/assert"
+	"knative.dev/client/lib/test"
+)
+
+type e2eTest struct {
+	it *testcommon.E2ETest
+}
+
+func newE2ETest(t *testing.T) *e2eTest {
+	currentDir, err := os.Getwd()
+	if err != nil {
+		return nil
+	}
+
+	it, err := testcommon.NewE2ETest("kn-admin", filepath.Join(currentDir, "../.."), false)
+	if err != nil {
+		return nil
+	}
+
+	e2eTest := &e2eTest{
+		it: it,
+	}
+	return e2eTest
+}
+
+func TestKnAdminPlugin(t *testing.T) {
+	t.Parallel()
+
+	e2eTest := newE2ETest(t)
+	assert.Assert(t, e2eTest != nil)
+	defer func() {
+		assert.NilError(t, e2eTest.it.KnTest().Teardown())
+	}()
+
+	r := test.NewKnRunResultCollector(t, e2eTest.it.KnTest())
+	defer r.DumpIfFailed()
+
+	err := e2eTest.it.KnPlugin().Install()
+	assert.NilError(t, err)
+
+	t.Log("test kn admin domain set")
+	e2eTest.knAdminSetDomain(t, r, "dummy.com")
+
+	err = e2eTest.it.KnPlugin().Uninstall()
+	assert.NilError(t, err)
+}
+
+func (et *e2eTest) knAdminSetDomain(t *testing.T, r *test.KnRunResultCollector, domain string) {
+	out := et.it.KnPlugin().Run("domain", "set", "--custom-domain", domain)
+	r.AssertNoError(out)
+}