log-parser: move the kata-log-parser from the tests repo

to the kata-containers repo under the src/tools/log-parser folder
and vendor the modules

Fixes: #4100
Signed-off-by: Snir Sheriber <ssheribe@redhat.com>

src/tools/log-parser/utils_test.go

@@ -0,0 +1,107 @@
+//
+// Copyright (c) 2017-2018 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"syscall"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+const (
+	testDirMode  = os.FileMode(0750)
+	testFileMode = os.FileMode(0640)
+)
+
+func TestUtilsResolvePathEmptyPath(t *testing.T) {
+	assert := assert.New(t)
+
+	_, err := resolvePath("")
+	assert.Error(err)
+}
+
+func TestUtilsResolvePathValidPath(t *testing.T) {
+	assert := assert.New(t)
+
+	dir, err := ioutil.TempDir("", "")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer func() {
+		err = os.RemoveAll(dir)
+		assert.NoError(err)
+	}()
+
+	target := path.Join(dir, "target")
+	linkDir := path.Join(dir, "a/b/c")
+	linkFile := path.Join(linkDir, "link")
+
+	err = createEmptyFile(target)
+	assert.NoError(err)
+
+	absolute, err := filepath.Abs(target)
+	assert.NoError(err)
+
+	resolvedTarget, err := filepath.EvalSymlinks(absolute)
+	assert.NoError(err)
+
+	err = os.MkdirAll(linkDir, testDirMode)
+	assert.NoError(err)
+
+	err = syscall.Symlink(target, linkFile)
+	assert.NoError(err)
+
+	resolvedLink, err := resolvePath(linkFile)
+	assert.NoError(err)
+
+	assert.Equal(resolvedTarget, resolvedLink)
+}
+
+func TestUtilsResolvePathENOENT(t *testing.T) {
+	assert := assert.New(t)
+
+	dir, err := ioutil.TempDir("", "")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	target := path.Join(dir, "target")
+	linkDir := path.Join(dir, "a/b/c")
+	linkFile := path.Join(linkDir, "link")
+
+	err = createEmptyFile(target)
+	assert.NoError(err)
+
+	err = os.MkdirAll(linkDir, testDirMode)
+	assert.NoError(err)
+
+	err = syscall.Symlink(target, linkFile)
+	assert.NoError(err)
+
+	cwd, err := os.Getwd()
+	assert.NoError(err)
+
+	defer func() {
+		err = os.Chdir(cwd)
+		assert.NoError(err)
+	}()
+
+	err = os.Chdir(dir)
+	assert.NoError(err)
+
+	err = os.RemoveAll(dir)
+	assert.NoError(err)
+
+	_, err = resolvePath(filepath.Base(linkFile))
+	assert.Error(err)
+}