diff --git a/tools/releasetools/edify_generator.py b/tools/releasetools/edify_generator.py
index b9c9b19..033c02e 100644
--- a/tools/releasetools/edify_generator.py
+++ b/tools/releasetools/edify_generator.py
@@ -301,7 +301,7 @@
             len(patchpairs) == 2), \
         "Failed to handle unknown format. Use PatchPartition() instead."
 
-    # Also sanity check the args.
+    # Also validity check the args.
     assert tokens[3] == patchpairs[0], \
         "Found mismatching values for source SHA-1: {} vs {}".format(
             tokens[3], patchpairs[0])
diff --git a/tools/releasetools/test_add_img_to_target_files.py b/tools/releasetools/test_add_img_to_target_files.py
index c82a40b..efa60b6 100644
--- a/tools/releasetools/test_add_img_to_target_files.py
+++ b/tools/releasetools/test_add_img_to_target_files.py
@@ -370,7 +370,7 @@
     with zipfile.ZipFile(output_file, 'w') as output_zip:
       # Create an existing META/care_map.pb entry.
       common.ZipWriteStr(output_zip, 'META/care_map.pb',
-                         'dummy care_map.pb')
+                         'fake care_map.pb')
 
       # Request to add META/care_map.pb again.
       AddCareMapForAbOta(output_zip, ['system', 'vendor'], image_paths)
diff --git a/tools/releasetools/test_common.py b/tools/releasetools/test_common.py
index 787e675..81ee53d 100644
--- a/tools/releasetools/test_common.py
+++ b/tools/releasetools/test_common.py
@@ -1619,12 +1619,12 @@
 
   def setUp(self):
     self._tempdir = common.MakeTempDir()
-    # Create a dummy dict that contains the fstab info for boot&recovery.
+    # Create a fake dict that contains the fstab info for boot&recovery.
     self._info = {"fstab" : {}}
-    dummy_fstab = [
+    fake_fstab = [
         "/dev/soc.0/by-name/boot /boot emmc defaults defaults",
         "/dev/soc.0/by-name/recovery /recovery emmc defaults defaults"]
-    self._info["fstab"] = common.LoadRecoveryFSTab("\n".join, 2, dummy_fstab)
+    self._info["fstab"] = common.LoadRecoveryFSTab("\n".join, 2, fake_fstab)
     # Construct the gzipped recovery.img and boot.img
     self.recovery_data = bytearray([
         0x1f, 0x8b, 0x08, 0x00, 0x81, 0x11, 0x02, 0x5a, 0x00, 0x03, 0x2b, 0x4a,
diff --git a/tools/releasetools/test_ota_from_target_files.py b/tools/releasetools/test_ota_from_target_files.py
index 7783f96..07b2e05 100644
--- a/tools/releasetools/test_ota_from_target_files.py
+++ b/tools/releasetools/test_ota_from_target_files.py
@@ -61,7 +61,7 @@
         'META/ab_partitions.txt',
         '\n'.join([partition[1] for partition in ab_partitions]))
 
-    # Create dummy images for each of them.
+    # Create fake images for each of them.
     for path, partition in ab_partitions:
       target_files_zip.writestr(
           '{}/{}.img'.format(path, partition),
@@ -754,7 +754,7 @@
 
 
 class StreamingPropertyFilesTest(PropertyFilesTest):
-  """Additional sanity checks specialized for StreamingPropertyFiles."""
+  """Additional validity checks specialized for StreamingPropertyFiles."""
 
   def test_init(self):
     property_files = StreamingPropertyFiles()
@@ -835,7 +835,7 @@
 
 
 class AbOtaPropertyFilesTest(PropertyFilesTest):
-  """Additional sanity checks specialized for AbOtaPropertyFiles."""
+  """Additional validity checks specialized for AbOtaPropertyFiles."""
 
   # The size for payload and metadata signature size.
   SIGNATURE_SIZE = 256
@@ -1003,7 +1003,7 @@
 
 
 class NonAbOtaPropertyFilesTest(PropertyFilesTest):
-  """Additional sanity checks specialized for NonAbOtaPropertyFiles."""
+  """Additional validity checks specialized for NonAbOtaPropertyFiles."""
 
   def test_init(self):
     property_files = NonAbOtaPropertyFiles()
diff --git a/tools/releasetools/test_verity_utils.py b/tools/releasetools/test_verity_utils.py
index d02bc7f..cfc4942 100644
--- a/tools/releasetools/test_verity_utils.py
+++ b/tools/releasetools/test_verity_utils.py
@@ -234,7 +234,7 @@
 
   @SkipIfExternalToolsUnavailable()
   def test_Build_SanityCheck(self):
-    # A sanity check for the test itself: the image shouldn't be verifiable
+    # A validity check for the test itself: the image shouldn't be verifiable
     # with wrong key.
     self.assertRaises(
         common.ExternalError,
diff --git a/tools/releasetools/testdata/apexkeys_framework.txt b/tools/releasetools/testdata/apexkeys_framework.txt
index b9caf9e..a827f22 100644
--- a/tools/releasetools/testdata/apexkeys_framework.txt
+++ b/tools/releasetools/testdata/apexkeys_framework.txt
@@ -1,5 +1,5 @@
 name="com.android.conscrypt.apex" public_key="external/conscrypt/apex/com.android.conscrypt.avbpubkey" private_key="external/conscrypt/apex/com.android.conscrypt.pem" container_certificate="external/conscrypt/apex/com.android.conscrypt.x509.pem" container_private_key="external/conscrypt/apex/com.android.conscrypt.pk8" partition="system"
-name="com.android.dummy_product.apex" public_key="selected" private_key="selected" container_certificate="selected" container_private_key="selected" partition="product"
+name="com.android.fake_product.apex" public_key="selected" private_key="selected" container_certificate="selected" container_private_key="selected" partition="product"
 name="com.android.runtime.apex" public_key="bionic/apex/com.android.runtime.avbpubkey" private_key="bionic/apex/com.android.runtime.pem" container_certificate="bionic/apex/com.android.runtime.x509.pem" container_private_key="bionic/apex/com.android.runtime.pk8" partition="system"
 name="com.android.vndk.current.on_vendor.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="vendor"
 name="com.android.vndk.v27.apex" public_key="packages/modules/vndk/apex/com.android.vndk.v27.pubkey" private_key="packages/modules/vndk/apex/com.android.vndk.v27.pem" container_certificate="packages/modules/vndk/apex/com.android.vndk.v27.x509.pem" container_private_key="packages/modules/vndk/apex/com.android.vndk.v27.pk8" partition="system_ext"
diff --git a/tools/releasetools/testdata/apexkeys_merge.txt b/tools/releasetools/testdata/apexkeys_merge.txt
index a9355d7..5b1b544 100644
--- a/tools/releasetools/testdata/apexkeys_merge.txt
+++ b/tools/releasetools/testdata/apexkeys_merge.txt
@@ -1,5 +1,5 @@
 name="com.android.conscrypt.apex" public_key="external/conscrypt/apex/com.android.conscrypt.avbpubkey" private_key="external/conscrypt/apex/com.android.conscrypt.pem" container_certificate="external/conscrypt/apex/com.android.conscrypt.x509.pem" container_private_key="external/conscrypt/apex/com.android.conscrypt.pk8" partition="system"
-name="com.android.dummy_product.apex" public_key="selected" private_key="selected" container_certificate="selected" container_private_key="selected" partition="product"
+name="com.android.fake_product.apex" public_key="selected" private_key="selected" container_certificate="selected" container_private_key="selected" partition="product"
 name="com.android.runtime.apex" public_key="bionic/apex/com.android.runtime.avbpubkey" private_key="bionic/apex/com.android.runtime.pem" container_certificate="bionic/apex/com.android.runtime.x509.pem" container_private_key="bionic/apex/com.android.runtime.pk8" partition="system"
 name="com.android.vndk.current.on_vendor.apex" public_key="packages/modules/vndk/apex/com.android.vndk.current.pubkey" private_key="packages/modules/vndk/apex/com.android.vndk.current.pem" container_certificate="packages/modules/vndk/apex/com.android.vndk.current.x509.pem" container_private_key="packages/modules/vndk/apex/com.android.vndk.current.pk8" partition="vendor"
 name="com.android.vndk.v27.apex" public_key="packages/modules/vndk/apex/com.android.vndk.v27.pubkey" private_key="packages/modules/vndk/apex/com.android.vndk.v27.pem" container_certificate="packages/modules/vndk/apex/com.android.vndk.v27.x509.pem" container_private_key="packages/modules/vndk/apex/com.android.vndk.v27.pk8" partition="system_ext"
diff --git a/tools/releasetools/testdata/apexkeys_vendor.txt b/tools/releasetools/testdata/apexkeys_vendor.txt
index 7dd3964..c6a9771 100644
--- a/tools/releasetools/testdata/apexkeys_vendor.txt
+++ b/tools/releasetools/testdata/apexkeys_vendor.txt
@@ -1,5 +1,5 @@
 name="com.android.conscrypt.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="system"
-name="com.android.dummy_product.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="product"
+name="com.android.fake_product.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="product"
 name="com.android.runtime.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="system"
 name="com.android.vndk.current.on_vendor.apex" public_key="packages/modules/vndk/apex/com.android.vndk.current.pubkey" private_key="packages/modules/vndk/apex/com.android.vndk.current.pem" container_certificate="packages/modules/vndk/apex/com.android.vndk.current.x509.pem" container_private_key="packages/modules/vndk/apex/com.android.vndk.current.pk8" partition="vendor"
 name="com.android.vndk.v27.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="system_ext"