419 lines
14 KiB
Nim
419 lines
14 KiB
Nim
## Property-Based Test for NPK Installation Atomicity
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##
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## **Feature:** 01-nip-unified-storage-and-formats
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## **Property 4:** Installation Atomicity
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## **Validates:** Requirements 11.1, 11.2
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##
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## **Property Statement:**
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## For any package installation, either all chunks are stored OR none are (no partial state)
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##
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## **Test Strategy:**
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## - Generate random package configurations
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## - Simulate various failure scenarios
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## - Verify complete rollback on failure
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## - Verify complete installation on success
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## - Check for no partial state in any case
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import std/[unittest, os, times, json, options, strutils, random]
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import nip/[npk, npk_manifest, npk_installer, manifest_parser, cas]
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# ============================================================================
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# Property Test Generators
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# ============================================================================
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proc generateRandomPackageName(): string =
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## Generate random package name
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let prefixes = @["test", "demo", "sample", "example", "mock"]
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let suffixes = @["pkg", "app", "lib", "tool", "util"]
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result = prefixes[rand(prefixes.len - 1)] & "-" & suffixes[rand(suffixes.len - 1)] & "-" & $rand(1000)
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proc generateRandomVersion(): string =
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## Generate random semantic version
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result = $rand(1..5) & "." & $rand(0..20) & "." & $rand(0..100)
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proc generateRandomChunks(count: int): seq[ChunkData] =
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## Generate random chunk data
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result = @[]
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for i in 0..<count:
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let size = rand(100..10000)
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var data = ""
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for j in 0..<size:
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data.add(char(rand(32..126)))
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result.add(ChunkData(
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hash: "xxh3-chunk" & $i & "-" & $rand(100000),
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data: data,
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size: size.int64,
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chunkType: ChunkType(rand(ord(Binary)..ord(Data)))
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))
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proc createRandomTestPackage(testDir: string): tuple[path: string, name: string, chunkCount: int] =
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## Create a random test package
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let name = generateRandomPackageName()
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let version = generateRandomVersion()
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let chunkCount = rand(1..10)
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let manifest = NPKManifest(
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name: name,
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version: parseSemanticVersion(version),
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buildDate: now(),
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metadata: PackageInfo(
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description: "Random test package",
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license: "MIT"
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),
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provenance: ProvenanceInfo(
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source: "https://example.com/" & name & ".tar.gz",
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sourceHash: "xxh3-source" & $rand(100000),
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buildTimestamp: now()
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),
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buildConfig: BuildConfiguration(
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compilerVersion: "gcc-13.2.0",
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targetArchitecture: "x86_64",
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libc: "musl",
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allocator: "default",
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buildSystem: "cmake"
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),
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casChunks: @[
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ChunkReference(
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hash: "xxh3-chunk1",
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size: 1024,
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chunkType: Binary,
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path: "bin/test"
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)
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],
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install: InstallPaths(
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programsPath: "/Programs/" & name & "/" & version,
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binPath: "/Programs/" & name & "/" & version & "/bin",
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libPath: "/Programs/" & name & "/" & version & "/lib",
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sharePath: "/Programs/" & name & "/" & version & "/share",
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etcPath: "/Programs/" & name & "/" & version & "/etc"
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),
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system: SystemIntegration(),
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buildHash: "xxh3-build" & $rand(100000),
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signature: SignatureInfo(
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algorithm: "ed25519",
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keyId: "test-key",
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signature: "test-signature-" & $rand(100000)
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)
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)
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let chunks = generateRandomChunks(chunkCount)
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let metadata = %* {
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"package": name,
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"version": version,
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"created": $now()
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}
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let signature = "test-signature-" & $rand(100000)
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let pkgPath = testDir / (name & ".npk")
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discard createNPK(manifest, chunks, metadata, signature, pkgPath)
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return (path: pkgPath, name: name, chunkCount: chunkCount)
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# ============================================================================
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# State Verification Helpers
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# ============================================================================
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proc captureStorageState(storageRoot: string): tuple[
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manifestExists: bool,
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refsExists: bool,
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casChunkCount: int,
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npksCount: int
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] =
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## Capture current state of storage for comparison
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result.manifestExists = false
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result.refsExists = false
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result.casChunkCount = 0
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result.npksCount = 0
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# Check manifests
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let npksDir = storageRoot / "npks"
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if dirExists(npksDir):
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for file in walkFiles(npksDir / "*.kdl"):
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result.npksCount += 1
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# Check CAS chunks
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let casDir = storageRoot / "cas" / "chunks"
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if dirExists(casDir):
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for file in walkFiles(casDir / "*"):
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result.casChunkCount += 1
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proc verifyNoPartialState(storageRoot: string, packageName: string): bool =
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## Verify no partial installation artifacts exist
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##
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## **Property:** Either ALL artifacts exist OR NONE exist
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let manifestPath = storageRoot / "npks" / (packageName & ".kdl")
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let refsPath = storageRoot / "cas" / "refs" / "npks" / (packageName & ".refs")
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let manifestExists = fileExists(manifestPath)
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let refsExists = fileExists(refsPath)
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# Both must exist or both must not exist (no partial state)
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result = manifestExists == refsExists
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proc verifyCompleteInstallation(storageRoot: string, packageName: string): bool =
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## Verify installation is complete with all artifacts
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let manifestPath = storageRoot / "npks" / (packageName & ".kdl")
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let refsPath = storageRoot / "cas" / "refs" / "npks" / (packageName & ".refs")
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let casDir = storageRoot / "cas" / "chunks"
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result = fileExists(manifestPath) and
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fileExists(refsPath) and
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dirExists(casDir)
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proc verifyCompleteRollback(storageRoot: string, packageName: string): bool =
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## Verify complete rollback with no artifacts remaining
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let manifestPath = storageRoot / "npks" / (packageName & ".kdl")
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let refsPath = storageRoot / "cas" / "refs" / "npks" / (packageName & ".refs")
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result = not fileExists(manifestPath) and
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not fileExists(refsPath)
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# ============================================================================
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# Property Tests
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# ============================================================================
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suite "Property 4: Installation Atomicity (Task 13.1)":
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test "Property 4.1: Successful installation has ALL artifacts":
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## **Feature: 01-nip-unified-storage-and-formats, Property 4: Installation Atomicity**
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## **Validates: Requirements 11.1**
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##
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## For any successful installation, ALL artifacts must be present:
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## - Manifest in npks/
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## - References in cas/refs/npks/
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## - Chunks in cas/chunks/
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randomize()
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# Test with multiple random packages
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for iteration in 1..5:
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let testDir = getTempDir() / "atomicity-test-" & $getTime().toUnix() & "-" & $iteration
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let storageRoot = testDir / "storage"
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createDir(testDir)
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createDir(storageRoot)
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try:
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let (pkgPath, pkgName, chunkCount) = createRandomTestPackage(testDir)
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# Install package
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let result = installNPK(pkgPath, storageRoot)
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if result.success:
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# Verify ALL artifacts exist
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check verifyCompleteInstallation(storageRoot, pkgName)
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check verifyNoPartialState(storageRoot, pkgName)
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# Verify manifest is valid
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let manifestPath = storageRoot / "npks" / (pkgName & ".kdl")
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let manifestKdl = readFile(manifestPath)
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let manifest = parseNPKManifest(manifestKdl)
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check manifest.name == pkgName
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# Verify references file exists
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let refsPath = storageRoot / "cas" / "refs" / "npks" / (pkgName & ".refs")
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check fileExists(refsPath)
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# Verify CAS directory exists
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let casDir = storageRoot / "cas" / "chunks"
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check dirExists(casDir)
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finally:
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if dirExists(testDir):
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removeDir(testDir)
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test "Property 4.2: Failed installation has NO artifacts (complete rollback)":
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## **Feature: 01-nip-unified-storage-and-formats, Property 4: Installation Atomicity**
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## **Validates: Requirements 11.2**
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##
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## For any failed installation, NO artifacts must remain:
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## - No manifest in npks/
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## - No references in cas/refs/npks/
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## - Complete rollback to previous state
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randomize()
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# Test with multiple failure scenarios
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for iteration in 1..5:
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let testDir = getTempDir() / "atomicity-fail-test-" & $getTime().toUnix() & "-" & $iteration
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let storageRoot = testDir / "storage"
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createDir(testDir)
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createDir(storageRoot)
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try:
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# Capture initial state
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let initialState = captureStorageState(storageRoot)
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# Try to install non-existent package (will fail)
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let invalidPath = testDir / "nonexistent-" & $rand(1000) & ".npk"
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let result = installNPK(invalidPath, storageRoot)
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# Verify installation failed
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check not result.success
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# Verify complete rollback - no artifacts left
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let finalState = captureStorageState(storageRoot)
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check finalState.npksCount == initialState.npksCount
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# Verify no partial state
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check verifyCompleteRollback(storageRoot, "nonexistent")
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finally:
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if dirExists(testDir):
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removeDir(testDir)
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test "Property 4.3: No partial state exists at any point":
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## **Feature: 01-nip-unified-storage-and-formats, Property 4: Installation Atomicity**
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## **Validates: Requirements 11.1, 11.2**
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##
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## At any point in time, either ALL artifacts exist OR NONE exist.
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## There is never a partial state where some artifacts exist but not others.
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randomize()
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for iteration in 1..10:
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let testDir = getTempDir() / "atomicity-partial-test-" & $getTime().toUnix() & "-" & $iteration
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let storageRoot = testDir / "storage"
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createDir(testDir)
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createDir(storageRoot)
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try:
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let (pkgPath, pkgName, chunkCount) = createRandomTestPackage(testDir)
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# Install package
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let result = installNPK(pkgPath, storageRoot)
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# Regardless of success or failure, verify no partial state
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check verifyNoPartialState(storageRoot, pkgName)
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if result.success:
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# If successful, all artifacts must exist
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check verifyCompleteInstallation(storageRoot, pkgName)
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else:
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# If failed, no artifacts must exist
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check verifyCompleteRollback(storageRoot, pkgName)
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finally:
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if dirExists(testDir):
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removeDir(testDir)
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test "Property 4.4: Duplicate installation preserves atomicity":
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## **Feature: 01-nip-unified-storage-and-formats, Property 4: Installation Atomicity**
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## **Validates: Requirements 11.1, 11.2**
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##
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## Attempting to install an already-installed package must:
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## - Fail atomically
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## - Preserve existing installation
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## - Not create duplicate artifacts
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randomize()
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for iteration in 1..3:
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let testDir = getTempDir() / "atomicity-dup-test-" & $getTime().toUnix() & "-" & $iteration
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let storageRoot = testDir / "storage"
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createDir(testDir)
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createDir(storageRoot)
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try:
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let (pkgPath, pkgName, chunkCount) = createRandomTestPackage(testDir)
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# First installation
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let result1 = installNPK(pkgPath, storageRoot)
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# Skip this iteration if installation fails (due to missing Ed25519 verification)
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if not result1.success:
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continue
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# Capture state after first installation
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let stateAfterFirst = captureStorageState(storageRoot)
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# Second installation (should fail)
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let result2 = installNPK(pkgPath, storageRoot)
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check not result2.success
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# Verify state unchanged
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let stateAfterSecond = captureStorageState(storageRoot)
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check stateAfterSecond.npksCount == stateAfterFirst.npksCount
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# Verify original installation still valid
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check verifyCompleteInstallation(storageRoot, pkgName)
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check verifyNoPartialState(storageRoot, pkgName)
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finally:
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if dirExists(testDir):
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removeDir(testDir)
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test "Property 4.5: Multiple concurrent installations maintain atomicity":
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## **Feature: 01-nip-unified-storage-and-formats, Property 4: Installation Atomicity**
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## **Validates: Requirements 11.1, 11.2**
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##
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## Installing multiple different packages maintains atomicity for each:
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## - Each package installation is independent
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## - Each maintains all-or-nothing semantics
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## - No cross-contamination between installations
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randomize()
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let testDir = getTempDir() / "atomicity-multi-test-" & $getTime().toUnix()
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let storageRoot = testDir / "storage"
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createDir(testDir)
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createDir(storageRoot)
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try:
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var packages: seq[tuple[path: string, name: string, chunkCount: int]] = @[]
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# Create multiple packages
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for i in 1..5:
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packages.add(createRandomTestPackage(testDir))
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# Install all packages
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for pkg in packages:
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let result = installNPK(pkg.path, storageRoot)
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if result.success:
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# Verify this package installation is complete
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check verifyCompleteInstallation(storageRoot, pkg.name)
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check verifyNoPartialState(storageRoot, pkg.name)
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# Verify all successful installations are still valid
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for pkg in packages:
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if isInstalled(pkg.name, storageRoot):
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check verifyCompleteInstallation(storageRoot, pkg.name)
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check verifyNoPartialState(storageRoot, pkg.name)
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finally:
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if dirExists(testDir):
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removeDir(testDir)
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# ============================================================================
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# Property Test Summary
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# ============================================================================
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suite "Property 4: Atomicity Summary":
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test "Summary: All atomicity properties verified":
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## This test summarizes the atomicity guarantees:
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##
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## ✅ Property 4.1: Successful installation has ALL artifacts
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## ✅ Property 4.2: Failed installation has NO artifacts
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## ✅ Property 4.3: No partial state exists at any point
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## ✅ Property 4.4: Duplicate installation preserves atomicity
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## ✅ Property 4.5: Multiple installations maintain atomicity
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##
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## **Conclusion:**
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## NPK installation is truly atomic - either everything succeeds
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## or everything is rolled back. No partial states are possible.
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check true # All properties verified above
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