wip

Signed-off-by: Brian DeHamer <[email protected]>

__tests__/unit/predicate.test.ts

@@ -0,0 +1,142 @@
+import fs from 'fs/promises'
+import os from 'os'
+import path from 'path'
+import { predicateFromInputs, PredicateInputs } from '../../src/predicate'
+
+describe('predicateFromInputs', () => {
+  const blankInputs: PredicateInputs = {
+    predicateType: '',
+    predicate: '',
+    predicatePath: ''
+  }
+
+  let tempDir: string
+
+  beforeEach(async () => {
+    tempDir = await fs.mkdtemp(path.join(os.tmpdir(), 'predicate-test-'))
+  })
+
+  afterEach(async () => {
+    await fs.rm(tempDir, { recursive: true, force: true })
+  })
+
+  describe('input validation', () => {
+    it('should throw when predicate-type is not provided', async () => {
+      await expect(predicateFromInputs(blankInputs)).rejects.toThrow(
+        /predicate-type must be provided/
+      )
+    })
+
+    it('should throw when neither predicate nor predicate-path is provided', async () => {
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType: 'https://example.com/predicate'
+      }
+      await expect(predicateFromInputs(inputs)).rejects.toThrow(
+        /one of predicate-path or predicate must be provided/i
+      )
+    })
+
+    it('should throw when both predicate and predicate-path are provided', async () => {
+      const inputs: PredicateInputs = {
+        predicateType: 'https://example.com/predicate',
+        predicate: '{}',
+        predicatePath: '/path/to/predicate.json'
+      }
+      await expect(predicateFromInputs(inputs)).rejects.toThrow(
+        /only one of predicate-path or predicate may be provided/i
+      )
+    })
+  })
+
+  describe('with predicate string', () => {
+    it('should parse and return the predicate', async () => {
+      const predicateType = 'https://example.com/predicate'
+      const predicateContent = { foo: 'bar', nested: { value: 123 } }
+
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType,
+        predicate: JSON.stringify(predicateContent)
+      }
+
+      const result = await predicateFromInputs(inputs)
+
+      expect(result).toEqual({
+        type: predicateType,
+        params: predicateContent
+      })
+    })
+
+    it('should throw when predicate string exceeds max size', async () => {
+      const predicateType = 'https://example.com/predicate'
+      const largeContent = JSON.stringify({ data: 'x'.repeat(16 * 1024 * 1024) })
+
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType,
+        predicate: largeContent
+      }
+
+      await expect(predicateFromInputs(inputs)).rejects.toThrow(
+        /predicate string exceeds maximum/
+      )
+    })
+
+    it('should throw when predicate is invalid JSON', async () => {
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType: 'https://example.com/predicate',
+        predicate: 'not valid json'
+      }
+
+      await expect(predicateFromInputs(inputs)).rejects.toThrow()
+    })
+  })
+
+  describe('with predicate path', () => {
+    it('should read and parse predicate from file', async () => {
+      const predicateType = 'https://example.com/predicate'
+      const predicateContent = { buildType: 'test', metadata: { version: '1.0' } }
+      const filePath = path.join(tempDir, 'predicate.json')
+
+      await fs.writeFile(filePath, JSON.stringify(predicateContent))
+
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType,
+        predicatePath: filePath
+      }
+
+      const result = await predicateFromInputs(inputs)
+
+      expect(result).toEqual({
+        type: predicateType,
+        params: predicateContent
+      })
+    })
+
+    it('should throw when predicate file does not exist', async () => {
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType: 'https://example.com/predicate',
+        predicatePath: '/nonexistent/file.json'
+      }
+
+      await expect(predicateFromInputs(inputs)).rejects.toThrow(/file not found/)
+    })
+
+    it('should throw when predicate file contains invalid JSON', async () => {
+      const filePath = path.join(tempDir, 'invalid.json')
+      await fs.writeFile(filePath, 'not valid json')
+
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType: 'https://example.com/predicate',
+        predicatePath: filePath
+      }
+
+      await expect(predicateFromInputs(inputs)).rejects.toThrow()
+    })
+  })
+})