mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 16:29:18 +00:00
bbd9222206
This change adds a driver root abstraction that defines how libraries are located relative to the root. This allows for this driver root to be constructed once and passed to discovery code. Signed-off-by: Evan Lezar <elezar@nvidia.com>
105 lines
2.9 KiB
Go
105 lines
2.9 KiB
Go
/**
|
|
# Copyright 2023 NVIDIA CORPORATION
|
|
#
|
|
# 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 cuda
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
|
|
testlog "github.com/sirupsen/logrus/hooks/test"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestLocate(t *testing.T) {
|
|
logger, _ := testlog.NewNullLogger()
|
|
|
|
testCases := []struct {
|
|
description string
|
|
libcudaPath string
|
|
expected []string
|
|
expectedError error
|
|
}{
|
|
{
|
|
description: "no libcuda does not resolve library",
|
|
libcudaPath: "",
|
|
expected: []string{},
|
|
expectedError: lookup.ErrNotFound,
|
|
},
|
|
{
|
|
description: "no-ldcache searches /usr/lib64",
|
|
libcudaPath: "/usr/lib64/libcuda.so.123.34",
|
|
expected: []string{"/usr/lib64/libcuda.so.123.34"},
|
|
expectedError: nil,
|
|
},
|
|
}
|
|
|
|
for _, tc := range testCases {
|
|
t.Run(tc.description, func(t *testing.T) {
|
|
driverRoot, err := setupDriverRoot(t, tc.libcudaPath)
|
|
require.NoError(t, err)
|
|
|
|
l := New(
|
|
lookup.NewLibraryLocator(
|
|
lookup.WithLogger(logger),
|
|
lookup.WithRoot(driverRoot),
|
|
),
|
|
)
|
|
|
|
candidates, err := l.Locate(".*")
|
|
require.ErrorIs(t, err, tc.expectedError)
|
|
|
|
var strippedCandidates []string
|
|
for _, c := range candidates {
|
|
// NOTE: We need to strip `/private` on MacOs due to symlink resolution
|
|
strippedCandidates = append(strippedCandidates, strings.TrimPrefix(c, "/private"))
|
|
}
|
|
var expectedWithRoot []string
|
|
for _, e := range tc.expected {
|
|
expectedWithRoot = append(expectedWithRoot, filepath.Join(driverRoot, e))
|
|
}
|
|
|
|
require.EqualValues(t, expectedWithRoot, strippedCandidates)
|
|
})
|
|
}
|
|
}
|
|
|
|
// setupDriverRoot creates a folder that can be used to represent a driver root.
|
|
// The path to libcuda can be specified and an empty file is created at this location in the driver root.
|
|
func setupDriverRoot(t *testing.T, libCudaPath string) (string, error) {
|
|
driverRoot := t.TempDir()
|
|
|
|
if libCudaPath == "" {
|
|
return driverRoot, nil
|
|
}
|
|
|
|
if err := os.MkdirAll(filepath.Join(driverRoot, filepath.Dir(libCudaPath)), 0755); err != nil {
|
|
return "", fmt.Errorf("falied to create required driver root folder: %w", err)
|
|
}
|
|
|
|
libCuda, err := os.Create(filepath.Join(driverRoot, libCudaPath))
|
|
if err != nil {
|
|
return "", fmt.Errorf("failed to create dummy libcuda.so: %w", err)
|
|
}
|
|
defer libCuda.Close()
|
|
|
|
return driverRoot, nil
|
|
}
|