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subodh chaturvedi 17 how to write the test class Of a helper class
I have my helper Class But i am not getting how to write the test class Of it.
public class BitSet
{
public Map < String, Integer > alphaNumCharCodes {
get;
set;
}
public Map < String, Integer > base64CharCodes
{
get;
set;
}
public BitSet() {
LoadCharCodes();
}
//Method loads the character codes for all letters
public void LoadCharCodes()
{
alphaNumCharCodes = new Map < String, Integer > {
'A' => 65,
'B' => 66,
'C' => 67,
'D' => 68,
'E' => 69,
'F' => 70,
'G' => 71,
'H' => 72,
'I' => 73,
'J' => 74,
'K' => 75,
'L' => 76,
'M' => 77,
'N' => 78,
'O' => 79,
'P' => 80,
'Q' => 81,
'R' => 82,
'S' => 83,
'T' => 84,
'U' => 85,
'V' => 86,
'W' => 87,
'X' => 88,
'Y' => 89,
'Z' => 90
};
base64CharCodes = new Map < String, Integer > ();
//all lower cases
Set < String > pUpperCase = alphaNumCharCodes.keySet();
for (String pKey: pUpperCase)
{
//the difference between upper case and lower case is 32
alphaNumCharCodes.put(pKey.toLowerCase(), alphaNumCharCodes.get(pKey) + 32);
//Base 64 alpha starts from 0 (The ascii charcodes started from 65)
base64CharCodes.put(pKey, alphaNumCharCodes.get(pKey) - 65);
base64CharCodes.put(pKey.toLowerCase(), alphaNumCharCodes.get(pKey) - (65) + 26);
}
//numerics
for (Integer i = 0; i <= 9; i++)
{
alphaNumCharCodes.put(string.valueOf(i), i + 48);
//base 64 numeric starts from 52
base64CharCodes.put(string.valueOf(i), i + 52);
}
}
public List < Integer > testBits(String pValidFor, List < Integer > nList)
{
List < Integer > results = new List < Integer > ();
List < Integer > pBytes = new List < Integer > ();
Integer bytesBeingUsed = (pValidFor.length() * 6) / 8;
Integer pFullValue = 0;
if (bytesBeingUsed <= 1)
return results;
for (Integer i = 0; i < pValidFor.length(); i++)
{
pBytes.Add((base64CharCodes.get((pValidFor.Substring(i, i + 1)))));
}
for (Integer i = 0; i < pBytes.size(); i++)
{
Integer pShiftAmount = (pBytes.size() - (i + 1)) * 6; //used to shift by a factor 6 bits to get the value
pFullValue = pFullValue + (pBytes[i] << (pShiftAmount));
}
Integer bit;
Integer targetOctet;
Integer shiftBits;
Integer tBitVal;
Integer n;
Integer nListSize = nList.size();
for (Integer i = 0; i < nListSize; i++)
{
n = nList[i];
bit = 7 - (Math.mod(n, 8));
targetOctet = (bytesBeingUsed - 1) - (n >> bytesBeingUsed);
shiftBits = (targetOctet * 8) + bit;
tBitVal = ((Integer)(2 << (shiftBits - 1)) & pFullValue) >> shiftBits;
if (tBitVal == 1)
results.add(n);
}
return results;
}
}
public class BitSet
{
public Map < String, Integer > alphaNumCharCodes {
get;
set;
}
public Map < String, Integer > base64CharCodes
{
get;
set;
}
public BitSet() {
LoadCharCodes();
}
//Method loads the character codes for all letters
public void LoadCharCodes()
{
alphaNumCharCodes = new Map < String, Integer > {
'A' => 65,
'B' => 66,
'C' => 67,
'D' => 68,
'E' => 69,
'F' => 70,
'G' => 71,
'H' => 72,
'I' => 73,
'J' => 74,
'K' => 75,
'L' => 76,
'M' => 77,
'N' => 78,
'O' => 79,
'P' => 80,
'Q' => 81,
'R' => 82,
'S' => 83,
'T' => 84,
'U' => 85,
'V' => 86,
'W' => 87,
'X' => 88,
'Y' => 89,
'Z' => 90
};
base64CharCodes = new Map < String, Integer > ();
//all lower cases
Set < String > pUpperCase = alphaNumCharCodes.keySet();
for (String pKey: pUpperCase)
{
//the difference between upper case and lower case is 32
alphaNumCharCodes.put(pKey.toLowerCase(), alphaNumCharCodes.get(pKey) + 32);
//Base 64 alpha starts from 0 (The ascii charcodes started from 65)
base64CharCodes.put(pKey, alphaNumCharCodes.get(pKey) - 65);
base64CharCodes.put(pKey.toLowerCase(), alphaNumCharCodes.get(pKey) - (65) + 26);
}
//numerics
for (Integer i = 0; i <= 9; i++)
{
alphaNumCharCodes.put(string.valueOf(i), i + 48);
//base 64 numeric starts from 52
base64CharCodes.put(string.valueOf(i), i + 52);
}
}
public List < Integer > testBits(String pValidFor, List < Integer > nList)
{
List < Integer > results = new List < Integer > ();
List < Integer > pBytes = new List < Integer > ();
Integer bytesBeingUsed = (pValidFor.length() * 6) / 8;
Integer pFullValue = 0;
if (bytesBeingUsed <= 1)
return results;
for (Integer i = 0; i < pValidFor.length(); i++)
{
pBytes.Add((base64CharCodes.get((pValidFor.Substring(i, i + 1)))));
}
for (Integer i = 0; i < pBytes.size(); i++)
{
Integer pShiftAmount = (pBytes.size() - (i + 1)) * 6; //used to shift by a factor 6 bits to get the value
pFullValue = pFullValue + (pBytes[i] << (pShiftAmount));
}
Integer bit;
Integer targetOctet;
Integer shiftBits;
Integer tBitVal;
Integer n;
Integer nListSize = nList.size();
for (Integer i = 0; i < nListSize; i++)
{
n = nList[i];
bit = 7 - (Math.mod(n, 8));
targetOctet = (bytesBeingUsed - 1) - (n >> bytesBeingUsed);
shiftBits = (targetOctet * 8) + bit;
tBitVal = ((Integer)(2 << (shiftBits - 1)) & pFullValue) >> shiftBits;
if (tBitVal == 1)
results.add(n);
}
return results;
}
}
Please check once below sample code.
@isTest private class BitSet_Test{ static testMethod void test_LoadCharCodes_UseCase1(){ public Map < String, Integer > alphaNumCharCodes = new Map < String, Integer > { 'A' => 65, 'B' => 66, 'C' => 67, 'D' => 68, 'E' => 69, 'F' => 70, 'G' => 71, 'H' => 72, 'I' => 73, 'J' => 74, 'K' => 75, 'L' => 76, 'M' => 77, 'N' => 78, 'O' => 79, 'P' => 80, 'Q' => 81, 'R' => 82, 'S' => 83, 'T' => 84, 'U' => 85, 'V' => 86, 'W' => 87, 'X' => 88, 'Y' => 89, 'Z' => 90 }; BitSet obj01 = new BitSet(); obj01.LoadCharCodes(); } static testMethod void test_testBits_UseCase1(){ public Map < String, Integer > alphaNumCharCodes = new Map < String, Integer > { 'A' => 65, 'B' => 66, 'C' => 67, 'D' => 68, 'E' => 69, 'F' => 70, 'G' => 71, 'H' => 72, 'I' => 73, 'J' => 74, 'K' => 75, 'L' => 76, 'M' => 77, 'N' => 78, 'O' => 79, 'P' => 80, 'Q' => 81, 'R' => 82, 'S' => 83, 'T' => 84, 'U' => 85, 'V' => 86, 'W' => 87, 'X' => 88, 'Y' => 89, 'Z' => 90 }; BitSet obj01 = new BitSet(); List<Integer>() lstofInts = new List<Integer>(); obj01.testBits('test data',lstofInts); } }Hope it helps you.
Please let me know in case of any other assistance.
Thanks
Varaprasad
List<Integer>() lstofInts = new List<Integer>();
List<Integer> lstofInts = new List<Integer>{65,66,67,68,69,70,71,72,73,74,75,76,77,78,79, 80,81,82,83,84,85,86,87,88,89,90}; system.debug('==lstofInts=='+lstofInts);Hope it helps you .
Thanks
Varaprasad
It is giving only total 58% for test_LoadCharCodes_UseCase1() method & 76% for test_testBits_UseCase1() method & over all percentage is 76% we want to deploy with more than that.
Please check once below code now.
@isTest public class BitSet_Test{ static testMethod void test_LoadCharCodes_UseCase1(){ Map < String, Integer > alphaNumCharCodes = new Map < String, Integer > { 'A' => 65, 'B' => 66, 'C' => 67, 'D' => 68, 'E' => 69, 'F' => 70, 'G' => 71, 'H' => 72, 'I' => 73, 'J' => 74, 'K' => 75, 'L' => 76, 'M' => 77, 'N' => 78, 'O' => 79, 'P' => 80, 'Q' => 81, 'R' => 82, 'S' => 83, 'T' => 84, 'U' => 85, 'V' => 86, 'W' => 87, 'X' => 88, 'Y' => 89, 'Z' => 90 }; BitSet obj01 = new BitSet(); obj01.LoadCharCodes(); } static testMethod void test_testBits_UseCase1(){ Map < String, Integer > alphaNumCharCodes = new Map < String, Integer > { 'A' => 65, 'B' => 66, 'C' => 67, 'D' => 68, 'E' => 69, 'F' => 70, 'G' => 71, 'H' => 72, 'I' => 73, 'J' => 74, 'K' => 75, 'L' => 76, 'M' => 77, 'N' => 78, 'O' => 79, 'P' => 80, 'Q' => 81, 'R' => 82, 'S' => 83, 'T' => 84, 'U' => 85, 'V' => 86, 'W' => 87, 'X' => 88, 'Y' => 89, 'Z' => 90 }; BitSet obj01 = new BitSet(); List<Integer> lstofInts = new List<Integer>{65,66,67,68,69,70,71,72,73,74,75,76,77,78,79, 80,81,82,83,84,85,86,87,88,89,90}; system.debug('==lstofInts=='+lstofInts); obj01.testBits('testdata',lstofInts); } }Hope it helps you.
Please let me know in case of any other assistance.
Thanks
Varaprasad
The test_LoadCharCodes_UseCase1() method covers Only 58% & test_testBits_UseCase1 method covers 98%. & one more issue while i am deploying this Test class to production it is Giving me Error
system.Null pointer Exception :Attempt to de-reference to a Null Object.
Stack trace: class .BitSet.testBits line 83,Column 1, Class.BitSet_Test.test_testBits_Usecase 1: line 69,Column 1
Please mark it as best answer if my information helps you,
Thanks
Varaprasad