Add test directory (knative#4)

Signed-off-by: Pierangelo Di Pilato <[email protected]>

test/presubmit-tests.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+# 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.
+
+# This script runs the presubmit tests; it is started by prow for each PR.
+# For convenience, it can also be executed manually.
+# Running the script without parameters, or with the --all-tests
+# flag, causes all tests to be executed, in the right order.
+# Use the flags --build-tests, --unit-tests and --integration-tests
+# to run a specific set of tests.
+
+# Prefer sockpuppet over markdown presubmit checks, as it will correct
+# markdown issues with less human involvement.
+
+#export DISABLE_MD_LINTING=1
+#
+#export GO111MODULE=on
+#
+#source $(dirname $0)/../vendor/knative.dev/test-infra/scripts/presubmit-tests.sh
+#
+## We use the default build, unit and integration test runners.
+#
+#main $@
+
+echo "Hello world!"
+