Updated logic in compareUpdateLibraryFile

test/server/objects/LibraryItemScanData.test.js

@@ -1,5 +1,68 @@
+const chai = require('chai')
+const expect = chai.expect
+const sinon = require('sinon')
+const rewire = require('rewire')
+const Path = require('path')
+
+const { stubFileUtils, getMockFileInfo, loadTestDatabase, buildFileProperties } = require('../MockDatabase')
+
+const LibraryItemScanData = require('../../../server/scanner/LibraryItemScanData')
+const LibraryFile = require('../../../server/objects/files/LibraryFile')
+const LibraryScan = require('../../../server/scanner/LibraryScan')
+
 // TODO - need to check
-// compareUpdateLibraryFile
+// compareUpdateLibraryFile - returns false if no changes; true if changes
+describe('compareUpdateLibraryFileWithDeviceId', () => {
+  it('fileChangeDetectedWhenInodeAndDeviceIdPairDiffers', () => {
+    const existing_lf = buildLibraryFileObject('/tmp/file.pdf', '4432', '300')
+    const scanned_lf = new LibraryFile({
+      ino: '1',
+      deviceId: '100'
+    })
+
+    expect(existing_lf.ino).to.not.equal(scanned_lf.ino)
+    expect(existing_lf.deviceId).to.not.equal(scanned_lf.deviceId)
+    const changeDetected = LibraryItemScanData.compareUpdateLibraryFile('/file/path.pdf', existing_lf, scanned_lf, new LibraryScan())
+    expect(changeDetected).to.be.true
+  })
+
+  it('fileChangeNotDetectedWhenInodeSameButDeviceIdDiffers', () => {
+    // Same inode on different deviceId does NOT mean these are the same file
+    const existing_lf = buildLibraryFileObject('/tmp/file.pdf', '4432', '300')
+    const scanned_lf = new LibraryFile(buildLibraryFileObject('/tmp/file.pdf', '4432', '100'))
+
+    expect(existing_lf.ino).to.equal(scanned_lf.ino)
+    expect(existing_lf.deviceId).to.not.equal(scanned_lf.deviceId)
+    const changeDetected = LibraryItemScanData.compareUpdateLibraryFile('/file/path.pdf', existing_lf, scanned_lf, new LibraryScan())
+    expect(changeDetected).to.be.false
+  })
+})
+
+/**
+ * @returns {import('../../../server/models/LibraryItem').LibraryFileObject}
+ * @param {string} [path]
+ * @param {string} [ino]
+ * @param {string} [deviceId]
+ */
+function buildLibraryFileObject(path, ino, deviceId) {
+  return {
+    ino: ino,
+    deviceId: deviceId,
+    isSupplementary: false,
+    addedAt: 0,
+    updatedAt: 0,
+    metadata: {
+      filename: Path.basename(path),
+      ext: Path.extname(path),
+      path: path,
+      relPath: path,
+      size: 0,
+      mtimeMs: 0,
+      ctimeMs: 0,
+      birthtimeMs: 0
+    }
+  }
+}
 // checkEbookFileRemoved
 // checkAudioFileRemoved
 // libraryItemObject()