The word(s) "test" appears 78 time(s) in 68 verse(s) in Quran in Mohsin Khan translation.

(11) And that He might test the hypocrites, it was said to them: "Come, fight in the Way of Allah or (at least) defend yourselves." They said: "Had we known that fighting will take place, we would certainly have followed you." They were that day, nearer to disbelief than to Faith, saying with their mouths what was not in their hearts. And Allah has full knowledge of what they conceal.

(12) You shall certainly be tried and tested in your wealth and properties and in your personal selves, and you shall certainly hear much that will grieve you from those who received the Scripture before you (Jews and Christians) and from those who ascribe partners to Allah; but if you persevere patiently, and become Al-Muttaqun (the pious - See V.2:2) then verily, that will be a determining factor in all affairs (and that is from the great matters which you must hold on with all your efforts).

(13) And those of your women who commit illegal sexual intercourse, take the evidence of four witnesses from amongst you against them; and if they testify, confine them (i.e. women) to houses until death comes to them or Allah ordains for them some (other) way.

(14) And We have sent down to you (O Muhammad صلى الله عليه وسلم) the Book (this Qur'an) in truth, confirming the Scripture that came before it and Muhaymin (trustworthy in highness and a witness) over it (old Scriptures) . So judge among them by what Allah has revealed, and follow not their vain desires, diverging away from the truth that has come to you. To each among you, We have prescribed a law and a clear way. If Allah had willed, He would have made you one nation, but that (He) may test you in what He has given you; so compete in good deeds. The return of you (all) is to Allah; then He will inform you about that in which you used to differ.

(15) O you who believe! Allah will certainly make a trial of you with something in (the matter of) the game that is well within the reach of your hands and your lances, that Allah may test him who fears Him unseen. Then whoever transgresses thereafter, for him there is a painful torment.

(16) O you who believe! When death approaches any of you, and you make a bequest, (then take) the testimony of two just men of your own folk or two others from outside, while you are travelling through the land and death befalls on you. Detain them both after As-Salat (the prayer), (then) if you are in doubt (about their truthfulness), let them both swear by Allah (saying): "We wish not for any worldly gain in this, even though he (the beneficiary) be our near relative. We shall not hide testimony of Allah, for then indeed we should be of the sinful."

(17) If then it gets known that these two had been guilty of sin, let two others stand forth in their places, nearest in kin from among those who claim a lawful right. Let them swear by Allah (saying): "We affirm that our testimony is truer than that of both of them, and that we have not trespassed (the truth), for then indeed we should be of the wrong-doers."

(18) That should make it closer (to the fact) that their testimony would be in its true shape (and thus accepted), or else they would fear that (other) oaths would be admitted after their oaths. And fear Allah and listen (with obedience to Him). And Allah guides not the people who are Al-Fasiqun (the rebellious and disobedient).

(19) Then they are returned to Allah, their True Maula [True Master (God), the Just Lord (to reward them)]. Surely, for Him is the judgement and He is the Swiftest in taking account.

(20) Say: "Bring forward your witnesses, who can testify that Allah has forbidden this. Then if they testify, testify not you (O Muhammad صلى الله عليه وسلم) with them. And you should not follow the vain desires of such as treat Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) as falsehoods, and such as believe not in the Hereafter, and they hold others as equal (in worship) with their Lord."