more test coverage (#18)

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

src/predicate.ts

@@ -1,6 +1,6 @@
 import * as core from '@actions/core'
 import fs from 'fs'
-import * as path from 'path'
+
 import type { Predicate } from '@actions/attest'
 
 // Returns the predicate specified by the action's inputs. The predicate value
@@ -14,25 +14,13 @@ export const predicateFromInputs = (): Predicate => {
     throw new Error('One of predicate-path or predicate must be provided')
   }
 
+  if (predicatePath && predicateStr) {
+    throw new Error('Only one of predicate-path or predicate may be provided')
+  }
+
   const params = predicatePath
     ? fs.readFileSync(predicatePath, 'utf-8')
     : predicateStr
 
   return { type: predicateType, params: JSON.parse(params) }
 }
-
-export const storePredicate = (predicate: Predicate): string => {
-  // random tempfile
-  const basePath = process.env['RUNNER_TEMP']
-
-  if (!basePath) {
-    throw new Error('Missing RUNNER_TEMP environment variable')
-  }
-
-  const tmpDir = fs.mkdtempSync(path.join(basePath, path.sep))
-  const tempFile = path.join(tmpDir, 'predicate.json')
-
-  // write predicate to file
-  fs.writeFileSync(tempFile, JSON.stringify(predicate.params))
-  return tempFile
-}