mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 16:29:18 +00:00
4177fddcc4
This change imports the modifying runtime abstraction from the experimental branch. This encapsulates the checks for whether modification is required, and forwards the loaded spec to the specified modifier. This allows for the same code to be reused when performing more complex modifications. Signed-off-by: Evan Lezar <elezar@nvidia.com>
104 lines
2.2 KiB
Go
104 lines
2.2 KiB
Go
/*
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# Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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*/
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package oci
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import (
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"bytes"
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"fmt"
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"testing"
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"github.com/opencontainers/runtime-spec/specs-go"
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"github.com/stretchr/testify/require"
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)
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func TestLoadFrom(t *testing.T) {
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testCases := []struct {
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contents []byte
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isError bool
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spec *specs.Spec
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}{
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{
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contents: []byte{},
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isError: true,
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},
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{
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contents: []byte("{}"),
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isError: false,
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spec: &specs.Spec{},
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},
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}
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for i, tc := range testCases {
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var spec *specs.Spec
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spec, err := loadFrom(bytes.NewReader(tc.contents))
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if tc.isError {
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require.Error(t, err, "%d: %v", i, tc)
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} else {
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require.NoError(t, err, "%d: %v", i, tc)
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}
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if tc.spec == nil {
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require.Nil(t, spec, "%d: %v", i, tc)
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} else {
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require.EqualValues(t, tc.spec, spec, "%d: %v", i, tc)
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}
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}
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}
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func TestFlushTo(t *testing.T) {
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testCases := []struct {
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isError bool
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spec *specs.Spec
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contents string
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}{
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{
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spec: nil,
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},
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{
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spec: &specs.Spec{},
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contents: "{\"ociVersion\":\"\"}\n",
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},
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}
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for i, tc := range testCases {
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buffer := bytes.Buffer{}
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err := flushTo(tc.spec, &buffer)
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if tc.isError {
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require.Error(t, err, "%d: %v", i, tc)
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} else {
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require.NoError(t, err, "%d: %v", i, tc)
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}
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require.EqualValues(t, tc.contents, buffer.String(), "%d: %v", i, tc)
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}
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// Add a simple test for a writer that returns an error when writing
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err := flushTo(&specs.Spec{}, errorWriter{})
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require.Error(t, err)
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}
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// errorWriter implements the io.Writer interface, always returning an error when
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// writing.
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type errorWriter struct{}
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func (e errorWriter) Write([]byte) (int, error) {
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return 0, fmt.Errorf("error writing")
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}
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