Initial commit

sources/test/jest/cache-reporting.test.ts

@@ -0,0 +1,98 @@
+import exp from 'constants'
+import {CacheEntryListener, CacheListener} from '../../src/caching/cache-reporting'
+
+describe('caching report', () => {
+    describe('reports not fully restored', () => {
+        it('with one requested entry report', async () => {
+            const report = new CacheListener()
+            report.entry('foo').markRequested('1', ['2'])
+            report.entry('bar').markRequested('3').markRestored('4', 500, 1000)
+            expect(report.fullyRestored).toBe(false)
+        })
+    })
+    describe('reports fully restored', () => {
+        it('when empty', async () => {
+            const report = new CacheListener()
+            expect(report.fullyRestored).toBe(true)
+        })
+        it('with empty entry reports', async () => {
+            const report = new CacheListener()
+            report.entry('foo')
+            report.entry('bar')
+            expect(report.fullyRestored).toBe(true)
+        })
+        it('with restored entry report', async () => {
+            const report = new CacheListener()
+            report.entry('bar').markRequested('3').markRestored('4', 300, 1000)
+            expect(report.fullyRestored).toBe(true)
+        })
+        it('with multiple restored entry reportss', async () => {
+            const report = new CacheListener()
+            report.entry('foo').markRestored('4', 3300, 111)
+            report.entry('bar').markRequested('3').markRestored('4', 333, 1000)
+            expect(report.fullyRestored).toBe(true)
+        })
+    })
+    describe('can be stringified and rehydrated', () => {
+        it('when empty', async () => {
+            const report = new CacheListener()
+
+            const stringRep = report.stringify()
+            const reportClone: CacheListener = CacheListener.rehydrate(stringRep)
+
+            expect(reportClone.cacheEntries).toEqual([])
+
+            // Can call methods on rehydrated
+            expect(reportClone.entry('foo')).toBeInstanceOf(CacheEntryListener)
+        })
+        it('with entry reports', async () => {
+            const report = new CacheListener()
+            report.entry('foo')
+            report.entry('bar')
+            report.entry('baz')
+
+            const stringRep = report.stringify()
+            const reportClone: CacheListener = CacheListener.rehydrate(stringRep)
+
+            expect(reportClone.cacheEntries.length).toBe(3)
+            expect(reportClone.cacheEntries[0].entryName).toBe('foo')
+            expect(reportClone.cacheEntries[1].entryName).toBe('bar')
+            expect(reportClone.cacheEntries[2].entryName).toBe('baz')
+
+            expect(reportClone.entry('foo')).toBe(reportClone.cacheEntries[0])
+        })
+        it('with rehydrated entry report', async () => {
+            const report = new CacheListener()
+            const entryReport = report.entry('foo')
+            entryReport.markRequested('1', ['2', '3'])
+            entryReport.markSaved('4', 100, 1000)
+
+            const stringRep = report.stringify()
+            const reportClone: CacheListener = CacheListener.rehydrate(stringRep)
+            const entryClone = reportClone.entry('foo')
+
+            expect(entryClone.requestedKey).toBe('1')
+            expect(entryClone.requestedRestoreKeys).toEqual(['2', '3'])
+            expect(entryClone.savedKey).toBe('4')
+            expect(entryClone.savedSize).toBe(100)
+            expect(entryClone.savedTime).toBe(1000)
+        })
+        it('with live entry report', async () => {
+            const report = new CacheListener()
+            const entryReport = report.entry('foo')
+            entryReport.markRequested('1', ['2', '3'])
+
+            const stringRep = report.stringify()
+            const reportClone: CacheListener = CacheListener.rehydrate(stringRep)
+            const entryClone = reportClone.entry('foo')
+
+            // Check type and call method on rehydrated entry report
+            expect(entryClone).toBeInstanceOf(CacheEntryListener)
+            entryClone.markSaved('4', 100, 1000)
+
+            expect(entryClone.requestedKey).toBe('1')
+            expect(entryClone.requestedRestoreKeys).toEqual(['2', '3'])
+            expect(entryClone.savedKey).toBe('4')
+        })
+    })
+})