Cleanup linux dll tests

- include headers from absolute paths
- restore changed global state in TearDown()

Change-Id: I81fab71aabc0df9d995928e75611681288951916
Signed-off-by: Mateusz Hoppe <mateusz.hoppe@intel.com>

unit_tests/linux/main_linux_dll.cpp

@@ -14,11 +14,12 @@
 #include "test.h"
 #include "unit_tests/custom_event_listener.h"
 #include "unit_tests/helpers/debug_manager_state_restore.h"
+#include "unit_tests/helpers/variable_backup.h"
+#include "unit_tests/linux/mock_os_layer.h"
 #include "unit_tests/os_interface/linux/device_command_stream_fixture.h"
 
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
-#include "mock_os_layer.h"
 
 #include <string>
 
@@ -37,12 +38,10 @@ class DrmWrap : public Drm {
 class DrmTestsFixture {
   public:
     void SetUp() {
-        //make static things into initial state
-        DrmWrap::closeDevice(0);
-        resetOSMockGlobalState();
     }
 
     void TearDown() {
+        DrmWrap::closeDevice(0);
     }
 };
 
@@ -98,6 +97,9 @@ TEST_F(DrmTests, createReturnsDrm) {
     drm_i915_getparam_t getParam;
     int lDeviceId;
 
+    VariableBackup<decltype(ioctlCnt)> backupIoctlCnt(&ioctlCnt);
+    VariableBackup<int> backupIoctlSeq(&ioctlSeq[0]);
+
     ioctlCnt = 0;
     ioctlSeq[0] = -1;
     errno = EINTR;
@@ -138,12 +140,15 @@ TEST_F(DrmTests, createTwiceReturnsSameDrm) {
 }
 
 TEST_F(DrmTests, createDriFallback) {
+    VariableBackup<decltype(haveDri)> backupHaveDri(&haveDri);
+
     haveDri = 1;
     auto drm = DrmWrap::createDrm(0);
     EXPECT_NE(drm, nullptr);
 }
 
 TEST_F(DrmTests, createNoDevice) {
+    VariableBackup<decltype(haveDri)> backupHaveDri(&haveDri);
     haveDri = -1;
     auto drm = DrmWrap::createDrm(0);
     EXPECT_EQ(drm, nullptr);
@@ -158,9 +163,11 @@ TEST_F(DrmTests, createNoOverrun) {
 }
 
 TEST_F(DrmTests, createUnknownDevice) {
-    DebugManagerStateRestore dbgRestore;
+    DebugManagerStateRestore dbgRestorer;
     DebugManager.flags.PrintDebugMessages.set(true);
 
+    VariableBackup<decltype(deviceId)> backupDeviceId(&deviceId);
+
     deviceId = -1;
 
     ::testing::internal::CaptureStderr();
@@ -171,6 +178,7 @@ TEST_F(DrmTests, createUnknownDevice) {
 }
 
 TEST_F(DrmTests, createNoSoftPin) {
+    VariableBackup<decltype(haveSoftPin)> backupHaveSoftPin(&haveSoftPin);
     haveSoftPin = 0;
 
     auto drm = DrmWrap::createDrm(0);
@@ -178,6 +186,7 @@ TEST_F(DrmTests, createNoSoftPin) {
 }
 
 TEST_F(DrmTests, failOnDeviceId) {
+    VariableBackup<decltype(failOnDeviceId)> backupFailOnDeviceId(&failOnDeviceId);
     failOnDeviceId = -1;
 
     auto drm = DrmWrap::createDrm(0);
@@ -185,6 +194,7 @@ TEST_F(DrmTests, failOnDeviceId) {
 }
 
 TEST_F(DrmTests, failOnRevisionId) {
+    VariableBackup<decltype(failOnRevisionId)> backupFailOnRevisionId(&failOnRevisionId);
     failOnRevisionId = -1;
 
     auto drm = DrmWrap::createDrm(0);
@@ -192,6 +202,7 @@ TEST_F(DrmTests, failOnRevisionId) {
 }
 
 TEST_F(DrmTests, failOnSoftPin) {
+    VariableBackup<decltype(failOnSoftPin)> backupFailOnSoftPin(&failOnSoftPin);
     failOnSoftPin = -1;
 
     auto drm = DrmWrap::createDrm(0);
@@ -199,6 +210,7 @@ TEST_F(DrmTests, failOnSoftPin) {
 }
 
 TEST_F(DrmTests, failOnParamBoost) {
+    VariableBackup<decltype(failOnParamBoost)> backupFailOnParamBoost(&failOnParamBoost);
     failOnParamBoost = -1;
 
     auto drm = DrmWrap::createDrm(0);
@@ -208,6 +220,9 @@ TEST_F(DrmTests, failOnParamBoost) {
 
 #ifdef SUPPORT_BDW
 TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenBdwDeviceIsCreatedThenSimplifiedMocsSelectionIsFalse) {
+    VariableBackup<decltype(deviceId)> backupDeviceId(&deviceId);
+    VariableBackup<decltype(failOnParamBoost)> backupFailOnParamBoost(&failOnParamBoost);
+
     deviceId = IBDW_GT3_WRK_DEVICE_F0_ID;
     failOnParamBoost = -1;
     auto drm = DrmWrap::createDrm(0);
@@ -218,6 +233,9 @@ TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenBdwDeviceIsCreatedThenSim
 
 #ifdef SUPPORT_SKL
 TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenSklDeviceIsCreatedThenSimplifiedMocsSelectionIsTrue) {
+    VariableBackup<decltype(deviceId)> backupDeviceId(&deviceId);
+    VariableBackup<decltype(failOnParamBoost)> backupFailOnParamBoost(&failOnParamBoost);
+
     deviceId = ISKL_GT2_DT_DEVICE_F0_ID;
     failOnParamBoost = -1;
     auto drm = DrmWrap::createDrm(0);
@@ -227,6 +245,9 @@ TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenSklDeviceIsCreatedThenSim
 #endif
 #ifdef SUPPORT_KBL
 TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenKblDeviceIsCreatedThenSimplifiedMocsSelectionIsTrue) {
+    VariableBackup<decltype(deviceId)> backupDeviceId(&deviceId);
+    VariableBackup<decltype(failOnParamBoost)> backupFailOnParamBoost(&failOnParamBoost);
+
     deviceId = IKBL_GT1_ULT_DEVICE_F0_ID;
     failOnParamBoost = -1;
     auto drm = DrmWrap::createDrm(0);
@@ -236,6 +257,9 @@ TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenKblDeviceIsCreatedThenSim
 #endif
 #ifdef SUPPORT_BXT
 TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenBxtDeviceIsCreatedThenSimplifiedMocsSelectionIsTrue) {
+    VariableBackup<decltype(deviceId)> backupDeviceId(&deviceId);
+    VariableBackup<decltype(failOnParamBoost)> backupFailOnParamBoost(&failOnParamBoost);
+
     deviceId = IBXT_X_DEVICE_F0_ID;
     failOnParamBoost = -1;
     auto drm = DrmWrap::createDrm(0);
@@ -245,6 +269,9 @@ TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenBxtDeviceIsCreatedThenSim
 #endif
 #ifdef SUPPORT_GLK
 TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenGlkDeviceIsCreatedThenSimplifiedMocsSelectionIsTrue) {
+    VariableBackup<decltype(deviceId)> backupDeviceId(&deviceId);
+    VariableBackup<decltype(failOnParamBoost)> backupFailOnParamBoost(&failOnParamBoost);
+
     deviceId = IGLK_GT2_ULT_18EU_DEVICE_F0_ID;
     failOnParamBoost = -1;
     auto drm = DrmWrap::createDrm(0);
@@ -254,6 +281,9 @@ TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenGlkDeviceIsCreatedThenSim
 #endif
 #ifdef SUPPORT_CFL
 TEST_F(DrmTests, givenKernelNotSupportingTurboPatchWhenCflDeviceIsCreatedThenSimplifiedMocsSelectionIsTrue) {
+    VariableBackup<decltype(deviceId)> backupDeviceId(&deviceId);
+    VariableBackup<decltype(failOnParamBoost)> backupFailOnParamBoost(&failOnParamBoost);
+
     deviceId = ICFL_GT1_S61_DT_DEVICE_F0_ID;
     failOnParamBoost = -1;
     auto drm = DrmWrap::createDrm(0);
@@ -269,6 +299,8 @@ TEST_F(DrmTests, givenKernelSupportingTurboPatchWhenDeviceIsCreatedThenSimplifie
 }
 
 TEST_F(DrmTests, failOnContextCreate) {
+    VariableBackup<decltype(failOnContextCreate)> backupFailOnContextCreate(&failOnContextCreate);
+
     auto drm = DrmWrap::createDrm(0);
     EXPECT_NE(drm, nullptr);
     failOnContextCreate = -1;
@@ -282,6 +314,8 @@ TEST_F(DrmTests, failOnContextCreate) {
 }
 
 TEST_F(DrmTests, failOnSetPriority) {
+    VariableBackup<decltype(failOnSetPriority)> backupFailOnSetPriority(&failOnSetPriority);
+
     auto drm = DrmWrap::createDrm(0);
     EXPECT_NE(drm, nullptr);
     failOnSetPriority = -1;
@@ -296,6 +330,8 @@ TEST_F(DrmTests, failOnSetPriority) {
 }
 
 TEST_F(DrmTests, failOnDrmGetVersion) {
+    VariableBackup<decltype(failOnDrmVersion)> backupFailOnDrmVersion(&failOnDrmVersion);
+
     failOnDrmVersion = -1;
     auto drm = DrmWrap::createDrm(0);
     EXPECT_EQ(drm, nullptr);
@@ -307,6 +343,8 @@ TEST_F(DrmTests, failOnDrmGetVersion) {
 }
 
 TEST_F(DrmTests, failOnInvalidDeviceName) {
+    VariableBackup<decltype(failOnDrmVersion)> backupFailOnDrmVersion(&failOnDrmVersion);
+
     strcpy(providedDrmVersion, "NA");
     auto drm = DrmWrap::createDrm(0);
     EXPECT_EQ(drm, nullptr);