import org.junit.jupiter.api.Disabled; import org.junit.jupiter.api.DisplayName; import org.junit.jupiter.api.Test; import java.util.Arrays; import java.util.HashMap; import java.util.Map; import static org.assertj.core.api.Assertions.assertThat; public class ParallelLetterFrequencyTest { private String calculateFrequencies = "There, peeping among the cloud-wrack above a dark tower high up in the mountains," + "Sam saw a white star twinkle for a while." + "The beauty of it smote his heart," + "as he looked up out of the forsaken land," + "and hope returned to him. For like a shaft," + "clear and cold, the thought pierced him that in the end," + "the shadow was only a small and passing thing: there was light and high beauty forever beyond its reach."; private String largeTexts1 = "I am a sick man.... I am a spiteful man. I am an unattractive man.\n" + "I believe my liver is diseased. However, I know nothing at all about my disease, and do not\n" + "know for certain what ails me. I don't consult a doctor for it,\n" + "and never have, though I have a respect for medicine and doctors.\n" + "Besides, I am extremely superstitious, sufficiently so to respect medicine,\n" + "anyway (I am well-educated enough not to be superstitious, but I am superstitious).\n" + "No, I refuse to consult a doctor from spite.\n" + "That you probably will not understand. Well, I understand it, though.\n" + "Of course, I can't explain who it is precisely that I am mortifying in this case by my spite:\n" + "I am perfectly well aware that I cannot \"pay out\" the doctors by not consulting them;\n" + "I know better than anyone that by all this I am only injuring myself and no one else.\n" + "But still, if I don't consult a doctor it is from spite.\n" + "My liver is bad, well - let it get worse!\n" + "I have been going on like that for a long time - twenty years. Now I am forty.\n" + "I used to be in the government service, but am no longer.\n" + "I was a spiteful official. I was rude and took pleasure in being so.\n" + "I did not take bribes, you see, so I was bound to find a recompense in that, at least.\n" + "(A poor jest, but I will not scratch it out. I wrote it thinking it would sound very witty;\n" + "but now that I have seen myself that I only wanted to show off in a despicable way -\n" + "I will not scratch it out on purpose!) When petitioners used to come for\n" + "information to the table at which I sat, I used to grind my teeth at them,\n" + "and felt intense enjoyment when I succeeded in making anybody unhappy.\n" + "I almost did succeed. For the most part they were all timid people - of course,\n" + "they were petitioners. But of the uppish ones there was one officer in particular\n" + "I could not endure. He simply would not be humble, and clanked his sword in a disgusting way.\n" + "I carried on a feud with him for eighteen months over that sword. At last I got the better of him.\n" + "He left off clanking it. That happened in my youth, though. But do you know,\n" + "gentlemen, what was the chief point about my spite? Why, the whole point,\n" + "the real sting of it lay in the fact that continually, even in the moment of the acutest spleen,\n" + "I was inwardly conscious with shame that I was not only not a spiteful but not even an embittered man,\n" + "that I was simply scaring sparrows at random and amusing myself by it.\n" + "I might foam at the mouth, but bring me a doll to play with, give me a cup of tea with sugar in it,\n" + "and maybe I should be appeased. I might even be genuinely touched,\n" + "though probably I should grind my teeth at myself afterwards and lie awake at night with shame for\n" + "months after. That was my way. I was lying when I said just now that I was a spiteful official.\n" + "I was lying from spite. I was simply amusing myself with the petitioners and with the officer,\n" + "and in reality I never could become spiteful. I was conscious every moment in myself of many,\n" + "very many elements absolutely opposite to that. I felt them positively swarming in me,\n" + "these opposite elements." + "I knew that they had been swarming in me all my life and craving some outlet from me,\n" + "but I would not let them, would not let them, purposely would not let them come out.\n" + "They tormented me till I was ashamed: they drove me to convulsions and - sickened me, at last,\n" + "how they sickened me!"; private String largeTexts2 = "Gentlemen, I am joking, and I know myself that my jokes are not brilliant\n" + ",but you know one can take everything as a joke." + "I am, perhaps, jesting against the grain.\n" + "Gentlemen, I am tormented by questions; answer them for me." + "You, for instance, want to cure men of their\n" + "old habits and reform their will in accordance with science and good sense.\n" + "But how do you know, not only that it is possible, but also that it is\n" + "desirable to reform man in that way?" + "And what leads you to the conclusion that man's\n" + "inclinations need reforming? In short," + "how do you know that such a reformation will be a benefit to man?\n" + "And to go to the root of the matter, why are you so positively convinced that not to act against\n" + "his real normal interests guaranteed by the conclusions of reason and arithmetic is certainly always\n" + "advantageous for man and must always be a law for mankind? So far, you know,\n" + "this is only your supposition." + "It may be the law of logic, but not the law of humanity.\n" + "You think, gentlemen, perhaps that I am mad? Allow me to defend myself. I agree that man\n" + "is pre-eminently a creative animal," + "predestined to strive consciously for an object and to engage in engineering -\n" + "that is, incessantly and eternally to make new roads, wherever\n" + "they may lead. But the reason why he wants sometimes to go off at a tangent may just be that he is\n" + "predestined to make the road, and perhaps, too, that however stupid the \"direct\"\n" + "practical man may be, the thought sometimes will occur to him that the road almost always does lead\n" + "somewhere, and that the destination it leads to is less important than the process\n" + "of making it, and that the chief thing is to save the well-conducted child from despising engineering,\n" + "and so giving way to the fatal idleness, which, as we all know,\n" + "is the mother of all the vices. Man likes to make roads and to create, that is a fact beyond dispute.\n" + "But why has he such a passionate love for destruction and chaos also?\n" + "Tell me that! But on that point I want to say a couple of words myself." + "May it not be that he loves\n" + "chaos and destruction (there can be no disputing that he does sometimes love it)\n" + "because he is instinctively afraid of attaining his object and completing the edifice he is constructing?\n" + "Who knows, perhaps he only loves that edifice from a distance, and is by no means\n" + "in love with it at close quarters; perhaps he only loves building it and does not want to live in it,\n" + "but will leave it, when completed, for the use of les animaux domestiques -\n" + "such as the ants, the sheep, and so on. Now the ants have quite a different taste.\n" + "They have a marvellous edifice of that pattern which endures for ever - the ant-heap.\n" + "With the ant-heap the respectable race of ants began and with the ant-heap they will probably end,\n" + "which does the greatest credit to their perseverance and good sense. But man is a frivolous and\n" + "incongruous creature, and perhaps, like a chess player, loves the process of the game, not the end of it.\n" + "And who knows (there is no saying with certainty), perhaps the only goal on earth\n" + "to which mankind is striving lies in this incessant process of attaining, in other words,\n" + "in life itself, and not in the thing to be attained, which must always be expressed as a formula,\n" + "as positive as twice two makes four, and such positiveness is not life, gentlemen,\n" + "but is the beginning of death."; private String largeTexts3 = "But these are all golden dreams. Oh, tell me, who was it first announced,\n" + "who was it first proclaimed," + "that man only does nasty things because he does not know his own interests;\n" + "and that if he were enlightened, if his eyes were opened to his real normal interests,\n" + "man would at once cease to do nasty things, would at once become good and noble because,\n" + "being enlightened and understanding his real advantage, he would see his own advantage in the\n" + "good and nothing else, and we all know that not one man can, consciously, act against his own interests,\n" + "consequently, so to say, through necessity, he would begin doing good? Oh, the babe! Oh, the pure,\n" + "innocent child! Why, in the first place, when in all these thousands of years has there been a time\n" + "when man has acted only from his own interest? What is to be done with the millions of facts that bear\n" + "witness that men, consciously, that is fully understanding their real interests, have left them in the\n" + "background and have rushed headlong on another path, to meet peril and danger,\n" + "compelled to this course by nobody and by nothing, but, as it were, simply disliking the beaten track,\n" + "and have obstinately, wilfully, struck out another difficult, absurd way," + "seeking it almost in the darkness.\n" + "So, I suppose, this obstinacy and perversity were pleasanter to them than any advantage....\n" + "Advantage! What is advantage?" + "And will you take it upon yourself to define with perfect accuracy in what the\n" + "advantage of man consists? And what if it so happens that a man's advantage, sometimes, not only may,\n" + "but even must, consist in his desiring in certain cases what is harmful to himself and not advantageous.\n" + "And if so, if there can be such a case, the whole principle falls into dust. What do you think -\n" + "are there such cases? You laugh; laugh away, gentlemen, but only answer me: have man's advantages been\n" + "reckoned up with perfect certainty? Are there not some which not only have not been included but cannot\n" + "possibly be included under any classification? You see, you gentlemen have, to the best of my knowledge,\n" + "taken your whole register of human advantages from the averages of statistical figures and\n" + "politico-economical formulas." + "Your advantages are prosperity, wealth, freedom, peace - and so on, and so on.\n" + "So that the man who should, for instance," + "go openly and knowingly in opposition to all that list would to your thinking,\n" + "and indeed mine, too, of course, be an obscurantist or an absolute madman: would not he?" + "But, you know, this is\n" + "what is surprising: why does it so happen that all these statisticians," + "sages and lovers of humanity,\n" + "when they reckon up human advantages invariably leave out one?" + "They don't even take it into their reckoning\n" + "in the form in which it should be taken, and the whole reckoning depends upon that." + "It would be no greater matter,\n" + "they would simply have to take it, this advantage, and add it to the list." + "But the trouble is, that this strange\n" + "advantage does not fall under any classification and is not in place in any list." + "I have a friend for instance ...\n" + "Ech! gentlemen, but of course he is your friend, too; and indeed there is no one," + "no one to whom he is not a friend!"; private String largeTexts4 = "Yes, but here I come to a stop! Gentlemen, you must excuse me for being over-philosophical;\n" + "it's the result of forty years underground! Allow me to indulge my fancy." + "You see, gentlemen, reason is an excellent thing,\n" + "there's no disputing that," + "but reason is nothing but reason and satisfies only the rational side of man's nature,\n" + "while will is a manifestation of the whole life, that is," + "of the whole human life including reason and all the impulses.\n" + "And although our life, in this manifestation of it, is often worthless," + "yet it is life and not simply extracting square roots.\n" + "Here I, for instance, quite naturally want to live, in order to satisfy all my capacities for life," + "and not simply my capacity\n" + "for reasoning, that is, not simply one twentieth of my capacity for life. What does reason know?" + "Reason only knows what it has\n" + "succeeded in learning (some things, perhaps, it will never learn;" + "this is a poor comfort, but why not say so frankly?)\n" + "and human nature acts as a whole, with everything that is in it," + "consciously or unconsciously, and, even it if goes wrong, it lives.\n" + "I suspect, gentlemen, that you are looking at me with compassion;" + "you tell me again that an enlightened and developed man,\n" + "such, in short, as the future man will be, cannot consciously desire anything disadvantageous to himself," + "that that can be proved mathematically.\n" + "I thoroughly agree, it can - by mathematics." + "But I repeat for the hundredth time, there is one case, one only, when man may consciously, purposely,\n" + "desire what is injurious to himself, what is stupid," + "very stupid - simply in order to have the right to desire for himself even what is very stupid\n" + "and not to be bound by an obligation to desire only what is sensible." + "Of course, this very stupid thing, this caprice of ours, may be in reality,\n" + "gentlemen, more advantageous for us than anything else on earth, especially in certain cases." + "And in particular it may be more advantageous than\n" + "any advantage even when it does us obvious harm," + "and contradicts the soundest conclusions of our reason concerning our advantage -\n" + "for in any circumstances it preserves for us what is most precious and most important - that is," + "our personality, our individuality.\n" + "Some, you see, maintain that this really is the most precious thing for mankind;" + "choice can, of course, if it chooses, be in agreement\n" + "with reason; and especially if this be not abused but kept within bounds." + "It is profitable and some- times even praiseworthy.\n" + "But very often, and even most often," + "choice is utterly and stubbornly opposed to reason ... and ... and ... do you know that that,\n" + "too, is profitable, sometimes even praiseworthy? Gentlemen, let us suppose that man is not stupid." + "(Indeed one cannot refuse to suppose that,\n" + "if only from the one consideration, that, if man is stupid, then who is wise?)" + "But if he is not stupid, he is monstrously ungrateful!\n" + "Phenomenally ungrateful. In fact, I believe that the best definition of man is the ungrateful biped." + "But that is not all, that is not his worst defect;\n" + "his worst defect is his perpetual moral obliquity, perpetual" + "- from the days of the Flood to the Schleswig-Holstein period."; @Test @DisplayName("no texts") public void testNoTexts() { String[] input = {}; Map expectedOutput = new HashMap<>(); ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("one text with one letter") public void testOneTextWithOneLetter() { String[] input = { "a" }; Map expectedOutput = new HashMap<>() { { put('a', 1); } }; ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("one text with multiple letters") public void testOneTextWithMultipleLetters() { String[] input = { "bbcccd" }; Map expectedOutput = new HashMap<>() { { put('b', 2); put('c', 3); put('d', 1); } }; ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("two texts with one letter") public void testTwoTextsWithOneLetter() { String[] input = { "e", "f" }; Map expectedOutput = new HashMap<>() { { put('e', 1); put('f', 1); } }; ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("two texts with multiple letters") public void testTwoTextsWithMultipleLetters() { String[] input = { "ggh", "hhi" }; Map expectedOutput = new HashMap<>() { { put('g', 2); put('h', 3); put('i', 1); } }; ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("ignore letter casing") public void testIgnoreLetterCasing() { String[] input = { "m", "M" }; Map expectedOutput = new HashMap<>() { { put('m', 2); } }; ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("ignore whitespace") public void testIgnoreWhitespace() { String[] input = { " ", "\t", "\r\n" }; Map expectedOutput = new HashMap<>(); ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("ignore punctuation") public void testIgnorePunctuation() { String[] input = { "!", "?", ";", ",", "." }; Map expectedOutput = new HashMap<>(); ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("ignore numbers") public void testIgnoreNumbers() { String[] input = { "1", "2", "3", "4", "5", "6", "7", "8", "9" }; Map expectedOutput = new HashMap<>(); ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("Unicode letters") public void testUnicodeLetters() { String[] input = { "本", "φ", "ほ", "ø" }; Map expectedOutput = new HashMap<>() { { put('本', 1); put('φ', 1); put('ほ', 1); put('ø', 1); } }; ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("combination of lower- and uppercase letters, punctuation and white space") public void testCombinationOfLowerAndUppercaseLettersPunctuationAndWhiteSpace() { String[] input = {calculateFrequencies}; Map expectedOutput = new HashMap<>() { { put('a', 32); put('b', 4); put('c', 6); put('d', 14); put('e', 37); put('f', 7); put('g', 8); put('h', 29); put('i', 19); put('k', 6); put('l', 12); put('m', 7); put('n', 19); put('o', 22); put('p', 7); put('r', 17); put('s', 16); put('t', 30); put('u', 9); put('v', 2); put('w', 9); put('y', 4); } }; ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("large texts") public void testLargeTexts() { String[] input = { largeTexts1, largeTexts2, largeTexts3, largeTexts4 }; Map expectedOutput = new HashMap<>() { { put('a', 845); put('b', 155); put('c', 278); put('d', 359); put('e', 1143); put('f', 222); put('g', 187); put('h', 507); put('i', 791); put('j', 12); put('k', 67); put('l', 423); put('m', 288); put('n', 833); put('o', 791); put('p', 197); put('q', 8); put('r', 432); put('s', 700); put('t', 1043); put('u', 325); put('v', 111); put('w', 223); put('x', 7); put('y', 251); } }; ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } @Disabled("Remove to run test") @Test @DisplayName("many small texts") public void testManySmallTexts() { String[] input = new String[50]; Arrays.fill(input, "abbccc"); Map expectedOutput = new HashMap<>() { { put('a', 50); put('b', 100); put('c', 150); } }; ParallelLetterFrequency p = new ParallelLetterFrequency(input); assertThat(p.countLetters()).isEqualTo(expectedOutput); } }