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snapshot_test.go
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snapshot_test.go
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package main
import (
"os"
"path"
"testing"
"github.com/falzm/fsdiff/internal/snapshot"
)
func (ts *testSuite) TestSnapshotCmd_run() {
tests := []struct {
name string
cmd *snapshotCmd
setupFunc func(*testSuite, *snapshotCmd)
testFunc func(*testSuite, *snapshotCmd)
wantErr bool
}{
{
name: "with --output-file",
cmd: &snapshotCmd{
Root: ts.rootDir,
OutputFile: path.Join(ts.testDir, ts.randomString(10)+".snap"),
},
setupFunc: func(t *testSuite, _ *snapshotCmd) { ts.createDummyFile("x", []byte("x"), 0o644) },
testFunc: func(ts *testSuite, cmd *snapshotCmd) {
ts.Require().FileExists(cmd.OutputFile)
snap, err := snapshot.Open(cmd.OutputFile)
ts.Require().NoError(err)
defer snap.Close()
filesByPath, err := snap.FilesByPath()
ts.Require().NoError(err)
ts.Require().Len(filesByPath, 1)
},
},
{
name: "with --shallow",
cmd: &snapshotCmd{
Root: ts.rootDir,
OutputFile: path.Join(ts.testDir, ts.randomString(10)+".snap"),
Shallow: true,
},
setupFunc: func(t *testSuite, _ *snapshotCmd) { ts.createDummyFile("x", []byte("x"), 0o644) },
testFunc: func(ts *testSuite, cmd *snapshotCmd) {
ts.Require().FileExists(cmd.OutputFile)
snap, err := snapshot.Open(cmd.OutputFile)
ts.Require().NoError(err)
defer snap.Close()
ts.True(snap.Metadata().Shallow)
},
},
{
name: "with --exclude",
cmd: &snapshotCmd{
Root: ts.rootDir,
OutputFile: path.Join(ts.testDir, ts.randomString(10)+".snap"),
Exclude: []string{"b"},
},
setupFunc: func(t *testSuite, _ *snapshotCmd) {
ts.createDummyFile("a", []byte("a"), 0o644)
ts.createDummyFile("b", []byte("b"), 0o644)
},
testFunc: func(ts *testSuite, cmd *snapshotCmd) {
ts.Require().FileExists(cmd.OutputFile)
snap, err := snapshot.Open(cmd.OutputFile)
ts.Require().NoError(err)
defer snap.Close()
filesByPath, err := snap.FilesByPath()
ts.Require().NoError(err)
ts.Require().Len(filesByPath, 1)
ts.Require().Equal("a", filesByPath[0].Path)
},
},
{
name: "with --exclude-from",
cmd: &snapshotCmd{
Root: ts.rootDir,
OutputFile: path.Join(ts.testDir, ts.randomString(10)+".snap"),
ExcludeFrom: path.Join(ts.testDir, ts.randomString(10)+".excludes"),
},
setupFunc: func(t *testSuite, cmd *snapshotCmd) {
ts.createDummyFile("a", []byte("a"), 0o644)
ts.createDummyFile("b", []byte("b"), 0o644)
ts.Require().NoError(os.WriteFile(cmd.ExcludeFrom, []byte("b"), 0o644))
},
testFunc: func(ts *testSuite, cmd *snapshotCmd) {
ts.Require().FileExists(cmd.OutputFile)
snap, err := snapshot.Open(cmd.OutputFile)
ts.Require().NoError(err)
defer snap.Close()
filesByPath, err := snap.FilesByPath()
ts.Require().NoError(err)
ts.Require().Len(filesByPath, 1)
ts.Require().Equal("a", filesByPath[0].Path)
},
},
{
name: "filesystem error without --carry-on",
cmd: &snapshotCmd{
Root: ts.rootDir,
OutputFile: path.Join(ts.testDir, ts.randomString(10)+".snap"),
},
setupFunc: func(t *testSuite, _ *snapshotCmd) { ts.createDummyFile("x", []byte("x"), 0o000) },
wantErr: true,
},
{
name: "filesystem error with --carry-on",
cmd: &snapshotCmd{
Root: ts.rootDir,
OutputFile: path.Join(ts.testDir, ts.randomString(10)+".snap"),
CarryOn: true,
},
setupFunc: func(t *testSuite, _ *snapshotCmd) { ts.createDummyFile("x", []byte("x"), 0o000) },
testFunc: func(ts *testSuite, cmd *snapshotCmd) {
ts.Require().FileExists(cmd.OutputFile)
snap, err := snapshot.Open(cmd.OutputFile)
ts.Require().NoError(err)
defer snap.Close()
filesByPath, err := snap.FilesByPath()
ts.Require().NoError(err)
ts.Require().Len(filesByPath, 0)
},
},
}
for _, tt := range tests {
ts.T().Run(tt.name, func(t *testing.T) {
// Clean up root dir between test cases.
dir, err := os.ReadDir(ts.rootDir)
ts.Require().NoError(err)
for _, de := range dir {
ts.Require().NoError(os.RemoveAll(path.Join(ts.rootDir, de.Name())))
}
if tt.setupFunc != nil {
tt.setupFunc(ts, tt.cmd)
}
err = tt.cmd.Run()
if (err != nil) != tt.wantErr {
t.Errorf("snapshotCmd.Run() error = %v, wantErr %v", err, tt.wantErr)
}
if tt.wantErr {
return
}
tt.testFunc(ts, tt.cmd)
})
}
}