X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=internal%2Fcli%2Froot_test.go;fp=internal%2Fcli%2Froot_test.go;h=947a6c08df6034077e0a3e25247096708a126384;hb=bf3832a4e8a0a5d9c0c83f784ae3778f4697fe61;hp=0000000000000000000000000000000000000000;hpb=6ca87249ebac1cc60daf04290238a901e1763538;p=ric-plt%2Fsdlgo.git

diff --git a/internal/cli/root_test.go b/internal/cli/root_test.go
new file mode 100644
index 0000000..947a6c0
--- /dev/null
+++ b/internal/cli/root_test.go
@@ -0,0 +1,58 @@
+/*
+   Copyright (c) 2021 AT&T Intellectual Property.
+   Copyright (c) 2018-2021 Nokia.
+
+   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 source code is part of the near-RT RIC (RAN Intelligent Controller)
+ * platform project (RICP).
+ */
+
+package cli_test
+
+import (
+	"bytes"
+	"errors"
+	"gerrit.o-ran-sc.org/r/ric-plt/sdlgo/internal/cli"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestCliShowsHelp(t *testing.T) {
+	var expOkErr error
+	expHelp := "Usage:\n  " + cli.SdlCliApp
+	expNokErr := errors.New("unknown flag: --some-unknown-flag")
+	tests := []struct {
+		args      string
+		expErr    error
+		expOutput string
+	}{
+		{args: "-h", expErr: expOkErr, expOutput: expHelp},
+		{args: "--help", expErr: expOkErr, expOutput: expHelp},
+		{args: "--some-unknown-flag", expErr: expNokErr, expOutput: expHelp},
+	}
+
+	for _, test := range tests {
+		buf := new(bytes.Buffer)
+		cmd := cli.NewRootCmd()
+		cmd.SetOut(buf)
+		cmd.SetErr(buf)
+		cmd.SetArgs([]string{test.args})
+		err := cmd.Execute()
+		result := buf.String()
+		assert.Equal(t, test.expErr, err)
+		assert.Contains(t, result, test.expOutput)
+	}
+}