diff --git a/cpp/test/disk_test.cpp b/cpp/test/disk_test.cpp
index f96379cc..861675c8 100644
--- a/cpp/test/disk_test.cpp
+++ b/cpp/test/disk_test.cpp
@@ -462,24 +462,6 @@ TEST(DiskTest, ModeSense10)
     ValidateCachingPage(*controller, 16);
 }
 
-TEST(DiskTest, ReadData)
-{
-    MockDisk disk;
-
-    EXPECT_THAT([&] {disk.ReadData( {});}, Throws<scsi_exception>(AllOf(
-                Property(&scsi_exception::get_sense_key, sense_key::not_ready),
-                Property(&scsi_exception::get_asc, asc::medium_not_present)))) << "Disk is not ready";
-}
-
-TEST(DiskTest, WriteData)
-{
-    MockDisk disk;
-
-    EXPECT_THAT([&] {disk.WriteData( {}, scsi_command::write6);}, Throws<scsi_exception>(AllOf(
-                Property(&scsi_exception::get_sense_key, sense_key::not_ready),
-                Property(&scsi_exception::get_asc, asc::medium_not_present)))) << "Disk is not ready";
-}
-
 TEST(DiskTest, SynchronizeCache)
 {
     auto [controller, disk] = CreateDisk();
diff --git a/cpp/test/scsi_cd_test.cpp b/cpp/test/scsi_cd_test.cpp
index 3bc2cd16..c6e35be2 100644
--- a/cpp/test/scsi_cd_test.cpp
+++ b/cpp/test/scsi_cd_test.cpp
@@ -119,10 +119,3 @@ TEST(ScsiCdTest, ReadToc)
     EXPECT_CALL(controller, DataIn());
     EXPECT_NO_THROW(cd->Dispatch(scsi_command::read_toc));
 }
-
-TEST(ScsiCdTest, ReadData)
-{
-    ScsiCd cd(0);
-
-    EXPECT_THROW(cd.ReadData( {}), scsi_exception)<< "Drive is not ready";
-}