Files
attest/__tests__/unit/subject.test.ts
Brian DeHamer 19ad753d23 test suite re-write (#356)
Signed-off-by: Brian DeHamer <bdehamer@github.com>
2026-02-19 10:14:47 -08:00

463 lines
14 KiB
TypeScript

import crypto from 'crypto'
import fs from 'fs/promises'
import os from 'os'
import path from 'path'
import {
subjectFromInputs,
formatSubjectDigest,
SubjectInputs
} from '../../src/subject'
describe('subjectFromInputs', () => {
const blankInputs: SubjectInputs = {
subjectPath: '',
subjectName: '',
subjectDigest: '',
subjectChecksums: ''
}
let tempDir: string
beforeEach(async () => {
tempDir = await fs.mkdtemp(path.join(os.tmpdir(), 'subject-test-'))
})
afterEach(async () => {
await fs.rm(tempDir, { recursive: true, force: true })
})
describe('input validation', () => {
it('should throw when no inputs are provided', async () => {
await expect(subjectFromInputs(blankInputs)).rejects.toThrow(
/one of subject-path, subject-digest, or subject-checksums must be provided/i
)
})
it('should throw when multiple subject inputs are provided', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: '/some/path',
subjectDigest: 'sha256:abc123'
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(
/only one of subject-path, subject-digest, or subject-checksums may be provided/i
)
})
it('should throw when subject-digest is provided without subject-name', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectDigest: 'sha256:7d070f6b64d9bcc530fe99cc21eaaa4b3c364e0b2d367d7735671fa202a03b32'
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(
/subject-name must be provided when using subject-digest/i
)
})
})
describe('with subject-digest', () => {
const validDigest = 'sha256:7d070f6b64d9bcc530fe99cc21eaaa4b3c364e0b2d367d7735671fa202a03b32'
it('should return subject with provided name and digest', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectName: 'my-artifact',
subjectDigest: validDigest
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(1)
expect(subjects[0].name).toBe('my-artifact')
expect(subjects[0].digest).toEqual({
sha256: '7d070f6b64d9bcc530fe99cc21eaaa4b3c364e0b2d367d7735671fa202a03b32'
})
})
it('should lowercase name when downcaseName is true', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectName: 'ghcr.io/FOO/Bar',
subjectDigest: validDigest,
downcaseName: true
}
const subjects = await subjectFromInputs(inputs)
expect(subjects[0].name).toBe('ghcr.io/foo/bar')
})
it('should throw for malformed digest format', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectName: 'artifact',
subjectDigest: 'invalid-digest'
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(
/subject-digest must be in the format/
)
})
it('should throw for unsupported hash algorithm', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectName: 'artifact',
subjectDigest: 'md5:d41d8cd98f00b204e9800998ecf8427e'
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(
/subject-digest must be in the format/
)
})
it('should throw for incorrect sha256 digest length', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectName: 'artifact',
subjectDigest: 'sha256:deadbeef'
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(
/subject-digest must be in the format/
)
})
})
describe('with subject-path', () => {
const fileContent = 'test file content'
const expectedDigest = crypto.createHash('sha256').update(fileContent).digest('hex')
it('should calculate digest from file', async () => {
const filePath = path.join(tempDir, 'artifact.bin')
await fs.writeFile(filePath, fileContent)
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: filePath
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(1)
expect(subjects[0].name).toBe('artifact.bin')
expect(subjects[0].digest).toEqual({ sha256: expectedDigest })
})
it('should use provided name instead of filename', async () => {
const filePath = path.join(tempDir, 'artifact.bin')
await fs.writeFile(filePath, fileContent)
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: filePath,
subjectName: 'custom-name'
}
const subjects = await subjectFromInputs(inputs)
expect(subjects[0].name).toBe('custom-name')
})
it('should throw when file does not exist', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: '/nonexistent/file'
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(
/could not find subject at path/i
)
})
describe('glob patterns', () => {
beforeEach(async () => {
for (let i = 0; i < 3; i++) {
await fs.writeFile(path.join(tempDir, `file-${i}.txt`), fileContent)
}
})
it('should expand glob pattern to multiple subjects', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: path.join(tempDir, 'file-*.txt')
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(3)
expect(subjects.map(s => s.name).sort()).toEqual([
'file-0.txt',
'file-1.txt',
'file-2.txt'
])
})
it('should handle comma-separated paths', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: `${path.join(tempDir, 'file-0.txt')},${path.join(tempDir, 'file-1.txt')}`
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(2)
})
it('should handle newline-separated paths', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: `${path.join(tempDir, 'file-0.txt')}\n${path.join(tempDir, 'file-2.txt')}`
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(2)
})
it('should support exclusion patterns', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: `${path.join(tempDir, 'file-*.txt')},!${path.join(tempDir, 'file-1.txt')}`
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(2)
expect(subjects.map(s => s.name)).not.toContain('file-1.txt')
})
it('should deduplicate subjects with same name and digest', async () => {
// Create another directory with same file
const otherDir = await fs.mkdtemp(path.join(os.tmpdir(), 'subject-dup-'))
await fs.writeFile(path.join(otherDir, 'file-0.txt'), fileContent)
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: `${path.join(tempDir, 'file-0.txt')},${path.join(otherDir, 'file-0.txt')}`
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(1)
await fs.rm(otherDir, { recursive: true, force: true })
})
})
it('should exclude directories from glob results', async () => {
await fs.mkdir(path.join(tempDir, 'subdir'))
await fs.writeFile(path.join(tempDir, 'file.txt'), fileContent)
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: path.join(tempDir, '*')
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(1)
expect(subjects[0].name).toBe('file.txt')
})
it('should throw when too many subjects are specified', async () => {
// Create 1025 files (exceeds MAX_SUBJECT_COUNT of 1024)
for (let i = 0; i < 1025; i++) {
await fs.writeFile(path.join(tempDir, `file-${i}.txt`), `content-${i}`)
}
const inputs: SubjectInputs = {
...blankInputs,
subjectPath: path.join(tempDir, 'file-*.txt')
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(/too many subjects/i)
})
})
describe('with subject-checksums', () => {
describe('from string', () => {
it('should parse sha256 checksums', async () => {
const checksums = `187dcd1506a170337415589ff00c8743f19d41cc31fca246c2739dfd450d0b9d artifact-linux
9ecbf449e286a8a8748c161c52aa28b6b2fc64ab86f94161c5d1b3abc18156c5 artifact-darwin`
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksums
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(2)
expect(subjects).toContainEqual({
name: 'artifact-linux',
digest: { sha256: '187dcd1506a170337415589ff00c8743f19d41cc31fca246c2739dfd450d0b9d' }
})
expect(subjects).toContainEqual({
name: 'artifact-darwin',
digest: { sha256: '9ecbf449e286a8a8748c161c52aa28b6b2fc64ab86f94161c5d1b3abc18156c5' }
})
})
it('should parse sha512 checksums', async () => {
const sha512 = '5d8b4751ef31f9440d843fcfa4e53ca2e25b1cb1f13fd355fdc7c24b41fe645293291ea9297ba3989078abb77ebbaac66be073618a9e4974dbd0361881d4c718'
const checksums = `${sha512} artifact-amd64`
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksums
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(1)
expect(subjects[0].digest).toEqual({ sha512 })
})
it('should handle binary mode flag (*)', async () => {
const checksums = `187dcd1506a170337415589ff00c8743f19d41cc31fca246c2739dfd450d0b9d *artifact.bin`
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksums
}
const subjects = await subjectFromInputs(inputs)
expect(subjects[0].name).toBe('artifact.bin')
})
it('should handle text mode flag (space)', async () => {
const checksums = `187dcd1506a170337415589ff00c8743f19d41cc31fca246c2739dfd450d0b9d artifact.txt`
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksums
}
const subjects = await subjectFromInputs(inputs)
expect(subjects[0].name).toBe('artifact.txt')
})
it('should handle checksums without mode flag', async () => {
// Single space between digest and name (no flag character)
const checksums = `187dcd1506a170337415589ff00c8743f19d41cc31fca246c2739dfd450d0b9d artifact-no-flag`
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksums
}
const subjects = await subjectFromInputs(inputs)
expect(subjects[0].name).toBe('artifact-no-flag')
})
it('should skip malformed lines', async () => {
const checksums = `187dcd1506a170337415589ff00c8743f19d41cc31fca246c2739dfd450d0b9d valid-artifact
badline
9ecbf449e286a8a8748c161c52aa28b6b2fc64ab86f94161c5d1b3abc18156c5 another-artifact`
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksums
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(2)
})
it('should deduplicate identical entries', async () => {
const checksums = `187dcd1506a170337415589ff00c8743f19d41cc31fca246c2739dfd450d0b9d artifact
187dcd1506a170337415589ff00c8743f19d41cc31fca246c2739dfd450d0b9d artifact`
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksums
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(1)
})
it('should throw for invalid digest characters', async () => {
const checksums = `!!!!e68a080799ca83104630b56abb90d8dbcc5f8b5a8639cb691e269838f29e artifact`
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksums
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(/invalid digest/i)
})
it('should throw for unknown digest algorithm', async () => {
const checksums = `f861e artifact`
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksums
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(/unknown digest algorithm/i)
})
})
describe('from file', () => {
it('should read checksums from file', async () => {
const checksumFile = path.join(tempDir, 'SHA256SUMS')
const checksums = `187dcd1506a170337415589ff00c8743f19d41cc31fca246c2739dfd450d0b9d artifact-linux
9ecbf449e286a8a8748c161c52aa28b6b2fc64ab86f94161c5d1b3abc18156c5 artifact-darwin`
await fs.writeFile(checksumFile, checksums)
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: checksumFile
}
const subjects = await subjectFromInputs(inputs)
expect(subjects).toHaveLength(2)
})
it('should throw when checksums path is a directory', async () => {
const inputs: SubjectInputs = {
...blankInputs,
subjectChecksums: tempDir
}
await expect(subjectFromInputs(inputs)).rejects.toThrow(
/subject checksums file not found/i
)
})
})
})
})
describe('formatSubjectDigest', () => {
it('should format digest as algorithm:hash', () => {
const subject = {
name: 'artifact',
digest: { sha256: 'abc123def456' }
}
expect(formatSubjectDigest(subject)).toBe('sha256:abc123def456')
})
it('should use first algorithm alphabetically when multiple exist', () => {
const subject = {
name: 'artifact',
digest: {
sha512: 'longer-hash',
sha256: 'shorter-hash'
}
}
expect(formatSubjectDigest(subject)).toBe('sha256:shorter-hash')
})
})