Add tests for key generation & attestation

Test that generateKeyPair, attestKey and setKeyPairCertificate operate correctly:
* Test successful key generation and attestation.
* Test various error conditions (missing attestation challenge, etc).

Bug: 138375478
Test: atest KeyChainTests
Change-Id: I62673c35a6729dcc4a3f2fa7761c82cd0a2dc6e4
3 files changed
tree: 9ba84647b5e8f71dbfef81e254f0fc48eadacd72
  1. res/
  2. robotests/
  3. src/
  4. support/
  5. tests/
  6. Android.bp
  7. AndroidManifest.xml
  8. OWNERS