Reviewed-by: Supreeth Venkatesh <supreeth.venkat...@arm.com>

There are some unintentional indentation changes in "switch" statement.
Please take care of that before (if intentional, ok as well) commit.

On Thu, 2018-11-01 at 10:52 +0800, Eric Jin wrote:
> Add definition of HwErrRecVariableNamePrefixLength,
> HwErrRecVariableNameIndexLength and HwErrRecVariableNameLength
> Make the HwErrRecVariableName as the valid string.
> Ensure the HwErrRecVariable could be deleted before the test exit.
> 
> Cc: Supreeth Venkatesh <supreeth.venkat...@arm.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Eric Jin <eric....@intel.com>
> ---
>  .../BlackBoxTest/VariableServicesBBTestFunction.c  | 38
> +++++++++++++---------
>  .../BlackBoxTest/VariableServicesBBTestMain.h      | 13 +++++++-
>  2 files changed, 35 insertions(+), 16 deletions(-)
> 
> diff --git a/uefi-
> sct/SctPkg/TestCase/UEFI/EFI/RuntimeServices/VariableServices/BlackBo
> xTest/VariableServicesBBTestFunction.c b/uefi-
> sct/SctPkg/TestCase/UEFI/EFI/RuntimeServices/VariableServices/BlackBo
> xTest/VariableServicesBBTestFunction.c
> index d1064ce..defe71a 100644
> --- a/uefi-
> sct/SctPkg/TestCase/UEFI/EFI/RuntimeServices/VariableServices/BlackBo
> xTest/VariableServicesBBTestFunction.c
> +++ b/uefi-
> sct/SctPkg/TestCase/UEFI/EFI/RuntimeServices/VariableServices/BlackBo
> xTest/VariableServicesBBTestFunction.c
> @@ -1,7 +1,7 @@
>  /** @file
>  
>    Copyright 2006 - 2012 Unified EFI, Inc.<BR>
> -  Copyright (c) 2010 - 2012, Intel Corporation. All rights
> reserved.<BR>
> +  Copyright (c) 2010 - 2018, Intel Corporation. All rights
> reserved.<BR>
>  
>    This program and the accompanying materials
>    are licensed and made available under the terms and conditions of
> the BSD License
> @@ -2855,7 +2855,7 @@ HardwareErrorRecordFuncTest (
>    UINT64                RemainingVariableStorageSize;
>    UINT64                MaximumVariableSize;
>    
> -  CHAR16                HwErrRecVariableName[13];
> +  CHAR16                HwErrRecVariableName[HwErrRecVariableNameLen
> gth];
>    CHAR16                HwErrRecVariable[] = L"This is a HwErrRec
> variable!";
>    
>    CHAR16                GetVariableName[MAX_BUFFER_SIZE];
> @@ -2864,7 +2864,7 @@ HardwareErrorRecordFuncTest (
>    
>    UINTN                 Num;
>    UINTN                 MaxNum = 0;
> -  CHAR16                ErrorNum[5];
> +  CHAR16                ErrorNum[HwErrRecVariableNameIndexLength+1];
>    
>    CHAR16                HwErrRecGetVariable[255];
>    
> @@ -2908,7 +2908,11 @@ HardwareErrorRecordFuncTest (
>    }
>  
>    //
> -  // Read reset record
> +  // Try to read reset record from the RecoveryData,
> +  // and the magic num is saved in the RecoveryData[0]. 
> +  // When the status is EFI_SUCCESS and magic num is 2,
> +  // it means useful data has been saved before the reset
> +  // and the date should be retrived goto particular process
>    //
>    Status = RecoveryLib->ReadResetRecord (
>                            RecoveryLib,
> @@ -2916,12 +2920,12 @@ HardwareErrorRecordFuncTest (
>                            RecoveryData
>                            );
>    if ( !EFI_ERROR(Status) && (RecoveryDataSize > 0) ) {
> -      switch (RecoveryData[0]) {
> +    switch (RecoveryData[0]) {
Is the indentation change intentional? It looked good to me earlier and
is ok with edk2 C coding standards as well.
>        case 2:
>          goto step2;
>        default:
>          goto step3;
> -      }
> +    }
Is the indentation change intentional? It looked good to me earlier and
is ok with edk2 C coding standards as well.
>    }
>    
>    //
> @@ -2978,7 +2982,7 @@ HardwareErrorRecordFuncTest (
>    // Get a useable variable name
>    //
>    GetVariableName[0] = L'\0';
> -  ErrorNum[4] = L'\0';
> +  ErrorNum[HwErrRecVariableNameIndexLength] = L'\0';
>    
>  
>    while (TRUE) {
> @@ -3001,9 +3005,9 @@ HardwareErrorRecordFuncTest (
>        break;
>      }
>  
> -    if ( (SctStrnCmp (GetVariableName, L"HwErrRec", 8) == 0) &&
> +    if ( (SctStrnCmp (GetVariableName, L"HwErrRec",
> HwErrRecVariableNamePrefixLength) == 0) &&
>           (SctCompareGuid (&VendorGuid, &gHwErrRecGuid) == 0) ) {
> -      SctStrnCpy (ErrorNum, &GetVariableName[8], 4);
> +      SctStrnCpy (ErrorNum,
> &GetVariableName[HwErrRecVariableNamePrefixLength],
> HwErrRecVariableNameIndexLength);
>        Num = SctXtoi (ErrorNum);
>        if (MaxNum < Num)
>          MaxNum = Num;
> @@ -3014,7 +3018,8 @@ HardwareErrorRecordFuncTest (
>      
>    HwErrRecVariableName[0] = L'\0';
>    SctStrCat ( HwErrRecVariableName, L"HwErrRec" );
> -  Myitox( MaxNum, HwErrRecVariableName+8 );
> +  Myitox( MaxNum,
> HwErrRecVariableName+HwErrRecVariableNamePrefixLength );
> +  HwErrRecVariableName[HwErrRecVariableNameLength-1] = L'\0';
>    
>    //
>    // Set the new HwErrRec variable to the global variable
> @@ -3033,11 +3038,12 @@ HardwareErrorRecordFuncTest (
>    }
>    
>    //
> -  // Write reset record
> +  // Before the reset, test writes magic num 2 in RecoveryData[0]
> +  // and writes the useful data - HwErrRecVariableName - to
> RecoveryData[2]
>    //
>    RecoveryData[0] = 2;
> -  SctStrnCpy ( (CHAR16*)(&RecoveryData[2]), HwErrRecVariableName, 12
> );
> -  RecoveryLib->WriteResetRecord( RecoveryLib, 13*sizeof(CHAR16)+2,
> RecoveryData );
> +  SctStrnCpy ( (CHAR16*)(&RecoveryData[2]), HwErrRecVariableName,
> HwErrRecVariableNameLength-1 );
> +  RecoveryLib->WriteResetRecord( RecoveryLib,
> HwErrRecVariableNameLength*sizeof(CHAR16)+2, RecoveryData );
>    
>    //
>    // Prompt the user about the cold reset and reset the system
> @@ -3048,11 +3054,13 @@ HardwareErrorRecordFuncTest (
>    gtRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);
>    
>    //
> -  // After the cold reset
> +  // The particular process after the reset
> +  // retrive the useful data - HwErrRecVariableName - from
> RecoveryData[2]
>    //
>  step2:
>    DataSize = 255;
> -  SctStrnCpy ( HwErrRecVariableName, (CHAR16*)(RecoveryData+2), 12
> );
> +  HwErrRecVariableName[HwErrRecVariableNameLength-1] = L'\0';
> +  SctStrnCpy ( HwErrRecVariableName, (CHAR16*)(RecoveryData+2),
> HwErrRecVariableNameLength-1 );
>    Status = RT->GetVariable (
>                          HwErrRecVariableName,
>                          &gHwErrRecGuid,
> diff --git a/uefi-
> sct/SctPkg/TestCase/UEFI/EFI/RuntimeServices/VariableServices/BlackBo
> xTest/VariableServicesBBTestMain.h b/uefi-
> sct/SctPkg/TestCase/UEFI/EFI/RuntimeServices/VariableServices/BlackBo
> xTest/VariableServicesBBTestMain.h
> index 051ae6f..426b762 100644
> --- a/uefi-
> sct/SctPkg/TestCase/UEFI/EFI/RuntimeServices/VariableServices/BlackBo
> xTest/VariableServicesBBTestMain.h
> +++ b/uefi-
> sct/SctPkg/TestCase/UEFI/EFI/RuntimeServices/VariableServices/BlackBo
> xTest/VariableServicesBBTestMain.h
> @@ -1,7 +1,7 @@
>  /** @file
>  
>    Copyright 2006 - 2016 Unified EFI, Inc.<BR>
> -  Copyright (c) 2010 - 2016, Intel Corporation. All rights
> reserved.<BR>
> +  Copyright (c) 2010 - 2018, Intel Corporation. All rights
> reserved.<BR>
>  
>    This program and the accompanying materials
>    are licensed and made available under the terms and conditions of
> the BSD License
> @@ -125,6 +125,17 @@ Abstract:
>  #endif
>  
>  //
> +// The Variable Name of Hardware Error Record Variables 
> +// defined in the UEFI Spec is HwErrRec####. For example,
> +// HwErrRec0001, HwErrRec0002, HwErrRecF31A, etc.
> +// The prefix length is 8, index length is 4.
> +// Consider the tail of string, the name length is 13.
> +//
> +#define HwErrRecVariableNameLength       13
> +#define HwErrRecVariableNamePrefixLength 8
> +#define HwErrRecVariableNameIndexLength  4
> +
> +//
>  // Global Variables
>  //
>  

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