Add more vboot common tests

BUG=chromium-os:38139
BRANCH=none
TEST=make runtests

Change-Id: Iad795956c1bb7f6444d6cce0bb618687e26d6025
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/42052
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
diff --git a/tests/vboot_common3_tests.c b/tests/vboot_common3_tests.c
index ce818a4..69c54a8 100644
--- a/tests/vboot_common3_tests.c
+++ b/tests/vboot_common3_tests.c
@@ -113,6 +113,12 @@
   TEST_NEQ(KeyBlockVerify(h, hsize, public_key, 0), 0,
            "KeyBlockVerify() sig mismatch");
 
+  Memcpy(h, hdr, hsize);
+  //ReChecksumKeyBlock(h);
+  h->key_block_checksum.data_size = h->key_block_size + 1;
+  TEST_NEQ(KeyBlockVerify(h, hsize, public_key, 1), 0,
+           "KeyBlockVerify() checksum data past end of block");
+
   /* Check that we signed header and data key */
   Memcpy(h, hdr, hsize);
   h->key_block_checksum.data_size = 4;
@@ -128,6 +134,10 @@
   TEST_NEQ(KeyBlockVerify(h, hsize, NULL, 1), 0,
            "KeyBlockVerify() data key off end");
 
+  /* Corner cases for error checking */
+  TEST_NEQ(KeyBlockVerify(NULL, 4, NULL, 1), 0,
+	  "KeyBlockVerify size too small");
+
   /* TODO: verify parser can support a bigger header (i.e., one where
    * data_key.key_offset is bigger than expected). */
 
@@ -169,6 +179,8 @@
 
   TEST_EQ(VerifyFirmwarePreamble(hdr, hsize, rsa), 0,
           "VerifyFirmwarePreamble() ok using key");
+  TEST_NEQ(VerifyFirmwarePreamble(hdr, 4, rsa), 0,
+           "VerifyFirmwarePreamble() size tiny");
   TEST_NEQ(VerifyFirmwarePreamble(hdr, hsize - 1, rsa), 0,
            "VerifyFirmwarePreamble() size--");
   TEST_EQ(VerifyFirmwarePreamble(hdr, hsize + 1, rsa), 0,