mirror of
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117 lines
2.6 KiB
Go
117 lines
2.6 KiB
Go
package merge_test
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import (
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"io"
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"io/fs"
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"os"
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"path/filepath"
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"testing"
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"github.com/navidrome/navidrome/utils/merge"
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. "github.com/onsi/ginkgo/v2"
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. "github.com/onsi/gomega"
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)
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func TestMergeFS(t *testing.T) {
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RegisterFailHandler(Fail)
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RunSpecs(t, "MergeFS Suite")
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}
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var _ = Describe("FS", func() {
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var baseName, overlayName string
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var mergedDir fs.FS
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BeforeEach(func() {
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baseName, _ = os.MkdirTemp("", "merge_fs_base_test")
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overlayName, _ = os.MkdirTemp("", "merge_fs_overlay_test")
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baseDir := os.DirFS(baseName)
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overlayDir := os.DirFS(overlayName)
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mergedDir = merge.FS{Base: baseDir, Overlay: overlayDir}
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})
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AfterEach(func() {
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_ = os.RemoveAll(baseName)
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_ = os.RemoveAll(overlayName)
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})
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It("reads from Base dir if not found in Overlay", func() {
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_f(baseName, "a.json")
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file, err := mergedDir.Open("a.json")
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Expect(err).To(BeNil())
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stat, err := file.Stat()
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Expect(err).To(BeNil())
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Expect(stat.Name()).To(Equal("a.json"))
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})
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It("reads overridden file", func() {
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_f(baseName, "b.json", "original")
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_f(baseName, "b.json", "overridden")
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file, err := mergedDir.Open("b.json")
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Expect(err).To(BeNil())
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content, err := io.ReadAll(file)
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Expect(err).To(BeNil())
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Expect(string(content)).To(Equal("overridden"))
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})
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It("reads only files from Base if Overlay is empty", func() {
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_f(baseName, "test.txt")
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dir, err := mergedDir.Open(".")
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Expect(err).To(BeNil())
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list, err := dir.(fs.ReadDirFile).ReadDir(-1)
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Expect(err).To(BeNil())
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Expect(list).To(HaveLen(1))
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Expect(list[0].Name()).To(Equal("test.txt"))
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})
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It("reads merged dirs", func() {
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_f(baseName, "1111.txt")
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_f(overlayName, "2222.json")
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dir, err := mergedDir.Open(".")
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Expect(err).To(BeNil())
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list, err := dir.(fs.ReadDirFile).ReadDir(-1)
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Expect(err).To(BeNil())
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Expect(list).To(HaveLen(2))
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Expect(list[0].Name()).To(Equal("1111.txt"))
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Expect(list[1].Name()).To(Equal("2222.json"))
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})
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It("allows to seek to the beginning of the directory", func() {
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_f(baseName, "1111.txt")
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_f(baseName, "2222.txt")
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_f(baseName, "3333.txt")
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dir, err := mergedDir.Open(".")
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Expect(err).To(BeNil())
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list, _ := dir.(fs.ReadDirFile).ReadDir(2)
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Expect(list).To(HaveLen(2))
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Expect(list[0].Name()).To(Equal("1111.txt"))
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Expect(list[1].Name()).To(Equal("2222.txt"))
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list, _ = dir.(fs.ReadDirFile).ReadDir(2)
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Expect(list).To(HaveLen(1))
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Expect(list[0].Name()).To(Equal("3333.txt"))
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})
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})
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func _f(dir, name string, content ...string) string {
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path := filepath.Join(dir, name)
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file, err := os.Create(path)
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if err != nil {
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panic(err)
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}
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if len(content) > 0 {
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_, _ = file.WriteString(content[0])
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}
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_ = file.Close()
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return path
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}
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