test: zero-initialize states in test's body

Signed-off-by: Mateusz Jablonski <mateusz.jablonski@intel.com>

Author: JablonskiMateusz

shared/test/unit_test/encoders/test_encode_dispatch_kernel.cpp

@@ -445,8 +445,8 @@ HWCMDTEST_F(IGFX_GEN8_CORE, CommandEncodeStatesTest, givenForceBtpPrefetchModeDe
     uint32_t dims[] = {2, 1, 1};
     uint32_t numBindingTable = 1;
     uint32_t numSamplers = 1;
-    SAMPLER_STATE samplerState;
-    BINDING_TABLE_STATE bindingTable;
+    SAMPLER_STATE samplerState{};
+    BINDING_TABLE_STATE bindingTable{};
     std::unique_ptr<MockDispatchKernelEncoder> dispatchInterface(new MockDispatchKernelEncoder());
 
     dispatchInterface->kernelDescriptor.payloadMappings.bindingTable.numEntries = numBindingTable;

shared/test/unit_test/encoders/test_encode_states.cpp

@@ -30,7 +30,7 @@ HWTEST_F(CommandEncodeStatesTest, GivenCommandStreamWhenEncodeCopySamplerStateTh
     }
     using SAMPLER_STATE = typename FamilyType::SAMPLER_STATE;
     uint32_t numSamplers = 1;
-    SAMPLER_STATE samplerState;
+    SAMPLER_STATE samplerState{};
 
     auto dsh = cmdContainer->getIndirectHeap(HeapType::DYNAMIC_STATE);
     auto usedBefore = dsh->getUsed();
@@ -440,4 +440,4 @@ HWTEST2_F(CommandEncodeStatesTest, whenGetCmdSizeForComputeModeThenCorrectValueI
     auto &csr = deviceFactory.rootDevices[0]->getUltCommandStreamReceiver<FamilyType>();
     csr.streamProperties.stateComputeMode.setProperties(false, 0, ThreadArbitrationPolicy::AgeBased, *defaultHwInfo);
     EXPECT_EQ(expectedScmSize, csr.getCmdSizeForComputeMode());
-}
+}