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StringReplaceTest.java
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StringReplaceTest.java
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package J.String.II.Hard.StringReplace;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
class StringReplaceTest {
private static StringReplace stringReplace;
private String input;
private String source;
private String target;
@BeforeAll
static void setInstace() {
stringReplace = new StringReplace();
}
@BeforeEach
void setUp() {
input = null;
source = null;
target = null;
}
@AfterEach
void tearDown() {
}
@Test
void testNullAndEmpty() {
assertEquals(input, stringReplace.replace(input, source, target));
assertEquals(input, stringReplace.replaceNaive(input, source, target));
assertEquals(input, stringReplace.replaceAlt(input, source, target));
input = "";
assertEquals(input, stringReplace.replace(input, source, target));
assertEquals(input, stringReplace.replaceNaive(input, source, target));
assertEquals(input, stringReplace.replaceAlt(input, source, target));
}
@Test
void testExamples() {
input = "appledogapple";
source = "apple";
target = "cat";
assertEquals("catdogcat", stringReplace.replace(input, source, target));
assertEquals("catdogcat", stringReplace.replaceNaive(input, source, target));
assertEquals("catdogcat", stringReplace.replaceAlt(input, source, target));
input = "dodododo";
source = "dod";
target = "a";
assertEquals("aoao", stringReplace.replace(input, source, target));
assertEquals("aoao", stringReplace.replaceNaive(input, source, target));
assertEquals("aoao", stringReplace.replaceAlt(input, source, target));
input = "catdogcat";
source = "cat";
target = "apple";
assertEquals("appledogapple", stringReplace.replace(input, source, target));
assertEquals("appledogapple", stringReplace.replaceNaive(input, source, target));
assertEquals("appledogapple", stringReplace.replaceAlt(input, source, target));
input = "aaa";
source = "a";
target = "bb";
assertEquals("bbbbbb", stringReplace.replace(input, source, target));
assertEquals("bbbbbb", stringReplace.replaceNaive(input, source, target));
assertEquals("bbbbbb", stringReplace.replaceAlt(input, source, target));
}
}