github.com/duglin/docker@v1.13.1/builder/dockerignore_test.go (about)

     1  package builder
     2  
     3  import (
     4  	"io/ioutil"
     5  	"log"
     6  	"os"
     7  	"sort"
     8  	"testing"
     9  )
    10  
    11  const shouldStayFilename = "should_stay"
    12  
    13  func extractFilenames(files []os.FileInfo) []string {
    14  	filenames := make([]string, len(files), len(files))
    15  
    16  	for i, file := range files {
    17  		filenames[i] = file.Name()
    18  	}
    19  
    20  	return filenames
    21  }
    22  
    23  func checkDirectory(t *testing.T, dir string, expectedFiles []string) {
    24  	files, err := ioutil.ReadDir(dir)
    25  
    26  	if err != nil {
    27  		t.Fatalf("Could not read directory: %s", err)
    28  	}
    29  
    30  	if len(files) != len(expectedFiles) {
    31  		log.Fatalf("Directory should contain exactly %d file(s), got %d", len(expectedFiles), len(files))
    32  	}
    33  
    34  	filenames := extractFilenames(files)
    35  	sort.Strings(filenames)
    36  	sort.Strings(expectedFiles)
    37  
    38  	for i, filename := range filenames {
    39  		if filename != expectedFiles[i] {
    40  			t.Fatalf("File %s should be in the directory, got: %s", expectedFiles[i], filename)
    41  		}
    42  	}
    43  }
    44  
    45  func executeProcess(t *testing.T, contextDir string) {
    46  	modifiableCtx := &tarSumContext{root: contextDir}
    47  	ctx := DockerIgnoreContext{ModifiableContext: modifiableCtx}
    48  
    49  	err := ctx.Process([]string{DefaultDockerfileName})
    50  
    51  	if err != nil {
    52  		t.Fatalf("Error when executing Process: %s", err)
    53  	}
    54  }
    55  
    56  func TestProcessShouldRemoveDockerfileDockerignore(t *testing.T) {
    57  	contextDir, cleanup := createTestTempDir(t, "", "builder-dockerignore-process-test")
    58  	defer cleanup()
    59  
    60  	createTestTempFile(t, contextDir, shouldStayFilename, testfileContents, 0777)
    61  	createTestTempFile(t, contextDir, dockerignoreFilename, "Dockerfile\n.dockerignore", 0777)
    62  	createTestTempFile(t, contextDir, DefaultDockerfileName, dockerfileContents, 0777)
    63  
    64  	executeProcess(t, contextDir)
    65  
    66  	checkDirectory(t, contextDir, []string{shouldStayFilename})
    67  
    68  }
    69  
    70  func TestProcessNoDockerignore(t *testing.T) {
    71  	contextDir, cleanup := createTestTempDir(t, "", "builder-dockerignore-process-test")
    72  	defer cleanup()
    73  
    74  	createTestTempFile(t, contextDir, shouldStayFilename, testfileContents, 0777)
    75  	createTestTempFile(t, contextDir, DefaultDockerfileName, dockerfileContents, 0777)
    76  
    77  	executeProcess(t, contextDir)
    78  
    79  	checkDirectory(t, contextDir, []string{shouldStayFilename, DefaultDockerfileName})
    80  
    81  }
    82  
    83  func TestProcessShouldLeaveAllFiles(t *testing.T) {
    84  	contextDir, cleanup := createTestTempDir(t, "", "builder-dockerignore-process-test")
    85  	defer cleanup()
    86  
    87  	createTestTempFile(t, contextDir, shouldStayFilename, testfileContents, 0777)
    88  	createTestTempFile(t, contextDir, DefaultDockerfileName, dockerfileContents, 0777)
    89  	createTestTempFile(t, contextDir, dockerignoreFilename, "input1\ninput2", 0777)
    90  
    91  	executeProcess(t, contextDir)
    92  
    93  	checkDirectory(t, contextDir, []string{shouldStayFilename, DefaultDockerfileName, dockerignoreFilename})
    94  
    95  }