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#include "TestChangesDatabase.h"
#include <TextChanges.h>
#include <TextChange.h>
void TestChangesDatabase::testInsert()
{
TextChanges changes;
changes.inserted(100, "foobar");
const TextChange *change = changes.first();
QVERIFY(change);
QVERIFY(change->next() == 0);
QCOMPARE(change->before(), QString());
QCOMPARE(change->after(), QString("foobar"));
QCOMPARE(change->position(), 100);
QCOMPARE(change->length(), 6);
changes.inserted(200, "lfjsdlkfjsldk");
QVERIFY(change->previous() == 0);
QVERIFY(change->next() != 0);
QCOMPARE(change->position(), 100);
const TextChange *change2 = change->next();
QVERIFY(change2->previous() == change);
QVERIFY(change2->next() == 0);
QVERIFY(change->previous() == 0);
QVERIFY(change->next() == change2);
QCOMPARE(change2->position(), 200);
QCOMPARE(change->after(), QString("foobar"));
QCOMPARE(change2->after(), QString("lfjsdlkfjsldk"));
changes.inserted(20, "sldkfnvlqwepoiz");
const TextChange *change3 = changes.first();
QCOMPARE(change3, change->previous());
QCOMPARE(change3->next(), change);
QCOMPARE(change3->position(), 20);
QCOMPARE(change->position(), 115);
QCOMPARE(change2->position(), 215);
QCOMPARE(change3->formerPosition(), 20);
QCOMPARE(change->formerPosition(), 100);
QCOMPARE(change2->formerPosition(), 200);
}
void TestChangesDatabase::testRemove()
{
TextChanges changes;
changes.changed(100, "foobar", "");
const TextChange *change = changes.first();
QVERIFY(change);
QVERIFY(change->next() == 0);
QCOMPARE(change->before(), QString("foobar"));
QCOMPARE(change->after(), QString());
QCOMPARE(change->position(), 100);
QCOMPARE(change->length(), -6);
changes.changed(200, "sldkjfnvs", "");
QVERIFY(change->next());
const TextChange *change2 = change->next();
QCOMPARE(change2->previous(), change);
QCOMPARE(change->next(), change2);
QCOMPARE(change->position(), 100);
QVERIFY(change2->next() == 0);
QVERIFY(change->previous() == 0);
QCOMPARE(change2->position(), 200);
changes.changed(20, "lskejf", "");
const TextChange *change3 = changes.first();
QCOMPARE(change3->next(), change);
QCOMPARE(change->previous(), change3);
QCOMPARE(change3->position(), 20);
QCOMPARE(change->position(), 94);
QCOMPARE(change2->position(), 194);
QCOMPARE(change3->formerPosition(), 20);
QCOMPARE(change->formerPosition(), 100);
QCOMPARE(change2->formerPosition(), 200);
}
void TestChangesDatabase::testSplit()
{
TextChanges changes;
// test the insertion of a big change and then the revert of a part of that change.
}
void TestChangesDatabase::testMerge()
{
TextChanges changes;
changes.inserted(1, "a");
const TextChange *change = changes.first();
QVERIFY(change);
QVERIFY(change->previous() == 0);
QVERIFY(change->next() == 0);
QCOMPARE(change->length(), 1);
QCOMPARE(change->after(), QString("a"));
changes.inserted(2, "b");
QVERIFY(change->next() == 0);
QCOMPARE(change->length(), 2);
QCOMPARE(change->after(), QString("ab"));
changes.inserted(3, "c");
QVERIFY(change->next() == 0);
QCOMPARE(change->length(), 3);
QCOMPARE(change->after(), QString("abc"));
changes.inserted(4, "d");
QVERIFY(change->next() == 0);
QCOMPARE(change->length(), 4);
QCOMPARE(change->after(), QString("abcd"));
changes.inserted(2, "x");
QVERIFY(change->next() == 0);
QCOMPARE(change->length(), 5);
QCOMPARE(change->after(), QString("axbcd"));
changes.changed(2, "x", "ka");
QVERIFY(change->next() == 0);
QEXPECT_FAIL("", "rest of functionality not implemented yet", Abort);
QCOMPARE(change->length(), 6);
QCOMPARE(change->after(), QString("akabcd"));
// TODO test the insertion of 2 changes and then the insertion of a 3th that makes it 1 change total
changes.inserted(8, "klm");
// means we now have; 'akabcd..klm'
QVERIFY(change->next() != 0);
changes.changed(6, "xykl", "baz");
// means we now have; 'akabcdbazm'
QVERIFY(change->next() == 0);
QCOMPARE(change->after(), QString("akabcdbazm"));
}
QTEST_MAIN(TestChangesDatabase)
#include <TestChangesDatabase.moc>
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