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import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
class LargestNumberTest {
@Test
void test1() {
String[] numbers = {"9", "4", "6", "1", "9"};
assertEquals("99641", LargestNumber.getLargestNumber(numbers));
}
@Test
void test2() {
String[] numbers = {"21", "2"};
assertEquals("221", LargestNumber.getLargestNumber(numbers));
}
@Test
void test3() {
String[] numbers = {"23", "39", "92"};
assertEquals("923923", LargestNumber.getLargestNumber(numbers));
}
@Test
void test4() {
String[] numbers = {"23", "39", "92"};
assertEquals("923923", LargestNumber.getLargestNumber(numbers));
}
@Test
void test5() {
String[] numbers = {"23", "2"};
assertEquals("232", LargestNumber.getLargestNumber(numbers));
}
@Test
void testCompareLeadingDigit() {
assertTrue(LargestNumber.compareLeadingDigit("2", "21"));
}
@Test
void testCompareLeadingDigit1() {
assertFalse(LargestNumber.compareLeadingDigit("20", "21"));
}
@Test
void testCompareLeadingDigit2() {
assertFalse(LargestNumber.compareLeadingDigit("321", "322"));
}
@Test
void testCompareLeadingDigit3() {
assertFalse(LargestNumber.compareLeadingDigit("321", "32"));
}
@Test
void testCompareLeadingDigit4() {
assertFalse(LargestNumber.compareLeadingDigit("10", "1"));
}
@Test
void testCompareLeadingDigit5() {
assertTrue(LargestNumber.compareLeadingDigit("6", "10"));
}
@Test
void testCompareLeadingDigit6() {
assertTrue(LargestNumber.compareLeadingDigit("23", "2"));
}
@Test
void testCompareLeadingDigit7() {
assertTrue(LargestNumber.compareLeadingDigit("545", "54"));
}
@Test
void testCompareLeadingDigit8() {
assertTrue(LargestNumber.compareLeadingDigit("56", "565"));
}
}
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