New Folder Scanner - WIP

scanner/change_detector_test.go

@@ -0,0 +1,103 @@
+package scanner
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"time"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("ChangeDetector", func() {
+	var testFolder string
+	var scanner *ChangeDetector
+
+	BeforeEach(func() {
+		testFolder, _ = ioutil.TempDir("", "cloudsonic_tests")
+		err := os.MkdirAll(testFolder, 0700)
+		if err != nil {
+			panic(err)
+		}
+		scanner = NewChangeDetector(testFolder, time.Time{})
+	})
+
+	It("detects changes recursively", func() {
+		// Scan empty folder
+		changed, deleted, err := scanner.Scan()
+		Expect(err).To(BeNil())
+		Expect(deleted).To(BeEmpty())
+		Expect(changed).To(ConsistOf("."))
+
+		// Add one subfolder
+		err = os.MkdirAll(path.Join(testFolder, "a"), 0700)
+		if err != nil {
+			panic(err)
+		}
+		changed, deleted, err = scanner.Scan()
+		Expect(err).To(BeNil())
+		Expect(deleted).To(BeEmpty())
+		Expect(changed).To(ConsistOf(".", "/a"))
+
+		// Add more subfolders
+		err = os.MkdirAll(path.Join(testFolder, "a", "b", "c"), 0700)
+		if err != nil {
+			panic(err)
+		}
+		changed, deleted, err = scanner.Scan()
+		Expect(err).To(BeNil())
+		Expect(deleted).To(BeEmpty())
+		Expect(changed).To(ConsistOf("/a", "/a/b", "/a/b/c"))
+
+		// Scan with no changes
+		changed, deleted, err = scanner.Scan()
+		Expect(err).To(BeNil())
+		Expect(deleted).To(BeEmpty())
+		Expect(changed).To(BeEmpty())
+
+		// New file in subfolder
+		_, err = os.Create(path.Join(testFolder, "a", "b", "empty.txt"))
+		if err != nil {
+			panic(err)
+		}
+		changed, deleted, err = scanner.Scan()
+		Expect(err).To(BeNil())
+		Expect(deleted).To(BeEmpty())
+		Expect(changed).To(ConsistOf("/a/b"))
+
+		// Delete file in subfolder
+		err = os.Remove(path.Join(testFolder, "a", "b", "empty.txt"))
+		if err != nil {
+			panic(err)
+		}
+		changed, deleted, err = scanner.Scan()
+		Expect(err).To(BeNil())
+		Expect(deleted).To(BeEmpty())
+		Expect(changed).To(ConsistOf("/a/b"))
+
+		// Delete subfolder
+		err = os.Remove(path.Join(testFolder, "a", "b", "c"))
+		if err != nil {
+			panic(err)
+		}
+		changed, deleted, err = scanner.Scan()
+		Expect(err).To(BeNil())
+		Expect(deleted).To(ConsistOf("/a/b/c"))
+		Expect(changed).To(ConsistOf("/a/b"))
+
+		// Only returns changes after lastUpdate
+		newScanner := NewChangeDetector(testFolder, time.Now())
+		changed, deleted, err = newScanner.Scan()
+		Expect(err).To(BeNil())
+		Expect(deleted).To(BeEmpty())
+		Expect(changed).To(BeEmpty())
+		Expect(changed).To(BeEmpty())
+
+		_, err = os.Create(path.Join(testFolder, "a", "b", "new.txt"))
+		changed, deleted, err = newScanner.Scan()
+		Expect(err).To(BeNil())
+		Expect(deleted).To(BeEmpty())
+		Expect(changed).To(ConsistOf("/a/b"))
+	})
+})