Add test for exec

Author: KyleFromNVIDIA

internal/validator/exec_test.go

@@ -0,0 +1,116 @@
+/*
+* SPDX-FileCopyrightText: Copyright (c) <2024> NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+* SPDX-License-Identifier: Apache-2.0
+*
+* 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.
+ */
+
+package validator
+
+import (
+	"bytes"
+	"errors"
+	"testing"
+
+	canaryv1 "github.com/nvidia/container-canary/internal/apis/v1"
+	"github.com/nvidia/container-canary/internal/container"
+	"github.com/rs/zerolog"
+	"github.com/stretchr/testify/assert"
+	v1 "k8s.io/api/core/v1"
+)
+
+type dummyContainer struct{}
+
+func (c *dummyContainer) Start() error { return nil }
+
+func (c *dummyContainer) Remove() error { return nil }
+
+func (c *dummyContainer) Status() (*container.ContainerInfo, error) { return nil, nil }
+
+func (c *dummyContainer) Exec(command ...string) (exitCode int, stdout string, stderr string, err error) {
+	switch command[0] {
+	case "success":
+		return 0, "Success stdout", "Success stderr", nil
+	case "failure":
+		return 1, "Failure stdout", "Failure stderr", nil
+	case "error":
+		return 0, "", "", errors.New("This command is an error")
+	default:
+		return 1, "", "", nil
+	}
+}
+
+func (c *dummyContainer) Logs() (string, error) { return "", nil }
+
+func logger() (zerolog.Logger, *bytes.Buffer) {
+	buf := new(bytes.Buffer)
+	logger := zerolog.New(buf)
+	return logger, buf
+}
+
+func TestExecSuccess(t *testing.T) {
+	assert := assert.New(t)
+
+	c := &dummyContainer{}
+	probe := &canaryv1.Probe{
+		Exec: &v1.ExecAction{
+			Command: []string{"success"},
+		},
+	}
+
+	logger, buf := logger()
+	e := logger.Info()
+	result, err := ExecCheck(c, probe, e)
+	e.Send()
+	assert.True(result)
+	assert.NoError(err)
+	assert.Equal("{\"level\":\"info\",\"exitCode\":0,\"stdout\":\"Success stdout\",\"stderr\":\"Success stderr\"}\n", buf.String())
+}
+
+func TestExecFailure(t *testing.T) {
+	assert := assert.New(t)
+
+	c := &dummyContainer{}
+	probe := &canaryv1.Probe{
+		Exec: &v1.ExecAction{
+			Command: []string{"failure"},
+		},
+	}
+
+	logger, buf := logger()
+	e := logger.Info()
+	result, err := ExecCheck(c, probe, e)
+	e.Send()
+	assert.False(result)
+	assert.NoError(err)
+	assert.Equal("{\"level\":\"info\",\"exitCode\":1,\"stdout\":\"Failure stdout\",\"stderr\":\"Failure stderr\"}\n", buf.String())
+}
+
+func TestExecError(t *testing.T) {
+	assert := assert.New(t)
+
+	c := &dummyContainer{}
+	probe := &canaryv1.Probe{
+		Exec: &v1.ExecAction{
+			Command: []string{"error"},
+		},
+	}
+
+	logger, buf := logger()
+	e := logger.Info()
+	result, err := ExecCheck(c, probe, e)
+	e.Send()
+	assert.False(result)
+	assert.Error(err, "This command is an error")
+	assert.Equal("{\"level\":\"info\"}\n", buf.String())
+}