137 lines
3.0 KiB
Go
137 lines
3.0 KiB
Go
/*
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Copyright 2018 Google LLC
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 dockerfile
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import (
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"fmt"
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"github.com/GoogleContainerTools/kaniko/testutil"
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"github.com/docker/docker/builder/dockerfile/instructions"
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"io/ioutil"
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"os"
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"path/filepath"
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"strconv"
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"testing"
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)
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func Test_ResolveStages(t *testing.T) {
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dockerfile := `
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FROM scratch
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RUN echo hi > /hi
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FROM scratch AS second
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COPY --from=0 /hi /hi2
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FROM scratch
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COPY --from=second /hi2 /hi3
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`
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stages, err := Parse([]byte(dockerfile))
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if err != nil {
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t.Fatal(err)
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}
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ResolveStages(stages)
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for index, stage := range stages {
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if index == 0 {
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continue
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}
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copyCmd := stage.Commands[0].(*instructions.CopyCommand)
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expectedStage := strconv.Itoa(index - 1)
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if copyCmd.From != expectedStage {
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t.Fatalf("unexpected copy command: %s resolved to stage %s, expected %s", copyCmd.String(), copyCmd.From, expectedStage)
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}
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}
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}
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func Test_Dependencies(t *testing.T) {
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testDir, err := ioutil.TempDir("", "")
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if err != nil {
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t.Fatal(err)
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}
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helloPath := filepath.Join(testDir, "hello")
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if err := os.Mkdir(helloPath, 0755); err != nil {
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t.Fatal(err)
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}
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dockerfile := fmt.Sprintf(`
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FROM scratch
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COPY %s %s
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FROM scratch AS second
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ENV hienv %s
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COPY a b
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COPY --from=0 /$hienv %s /hi2/
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`, helloPath, helloPath, helloPath, testDir)
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stages, err := Parse([]byte(dockerfile))
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if err != nil {
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t.Fatal(err)
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}
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expectedDependencies := [][]string{
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{
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helloPath,
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testDir,
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},
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nil,
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}
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for index := range stages {
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buildArgs := NewBuildArgs([]string{})
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actualDeps, err := Dependencies(index, stages, buildArgs)
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testutil.CheckErrorAndDeepEqual(t, false, err, expectedDependencies[index], actualDeps)
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}
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}
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func Test_DependenciesWithArg(t *testing.T) {
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testDir, err := ioutil.TempDir("", "")
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if err != nil {
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t.Fatal(err)
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}
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helloPath := filepath.Join(testDir, "hello")
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if err := os.Mkdir(helloPath, 0755); err != nil {
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t.Fatal(err)
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}
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dockerfile := fmt.Sprintf(`
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FROM scratch
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COPY %s %s
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FROM scratch AS second
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ARG hienv
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COPY a b
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COPY --from=0 /$hienv %s /hi2/
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`, helloPath, helloPath, testDir)
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stages, err := Parse([]byte(dockerfile))
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if err != nil {
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t.Fatal(err)
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}
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expectedDependencies := [][]string{
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{
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helloPath,
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testDir,
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},
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nil,
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}
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buildArgs := NewBuildArgs([]string{fmt.Sprintf("hienv=%s", helloPath)})
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for index := range stages {
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actualDeps, err := Dependencies(index, stages, buildArgs)
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testutil.CheckErrorAndDeepEqual(t, false, err, expectedDependencies[index], actualDeps)
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}
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}
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