/** * Yona, 21st Century Project Hosting SW * <p> * Copyright Yona & Yobi Authors & NAVER Corp. & NAVER LABS Corp. * https://yona.io **/ package utils; import org.junit.Test; import static org.fest.assertions.Assertions.assertThat; public class DiffUtilTest { String DIFF_DELETE_PREFIX = "<span style='background-color: #fda9a6;padding: 2px 0;'>"; String DIFF_DELETE_POSTFIX = "</span>"; String DIFF_INSERT_PREFIX = "<span style='background-color: #abdd52;padding: 2px 0;'>"; String DIFF_INSERT_POSTFIX = "</span>"; String DIFF_EQUAL_PREFIX = "<span style='color: #bdbdbd;font-size: 16px;font-family: serif;'>...&nbsp<br/>\n" + "......&nbsp<br/>\n" + "......&nbsp<br/>\n" + "...</span>"; String DIFF_NEW_LINE = "\n"; String DIFF_DELETE_PLAIN_PREFIX = "--- "; String DIFF_INSERT_PLAIN_PREFIX = "+++ "; String DIFF_EQUAL_PLAIN_PREFIX = "......\n" + "......\n" + "...\n"; @Test public void getDiffText_oldValueIsNull_returnString() { // GIVEN String oldValue = null; String newValue = "new value"; String expectedResult = DIFF_INSERT_PREFIX + newValue + DIFF_INSERT_POSTFIX; // WHEN String result = DiffUtil.getDiffText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } @Test public void getDiffText_newValueIsNull_returnString() { // GIVEN String oldValue = "oldValue"; String newValue = null; String expectedResult = DIFF_DELETE_PREFIX + oldValue + DIFF_DELETE_POSTFIX; // WHEN String result = DiffUtil.getDiffText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } @Test public void getDiffText_equalValuesMoreThanSize100_returnString() { // GIVEN String oldValue = "12345678901234567890123456789012345678901234567890123456789012345678901234567890" + "123456789012345678901234567890"; String newValue = "12345678901234567890123456789012345678901234567890123456789012345678901234567890" + "123456789012345678901234567890"; int textLength = oldValue.length(); String expectedResult = oldValue.substring(0, 50) + DIFF_EQUAL_PREFIX + oldValue.substring(textLength - 50); // WHEN String result = DiffUtil.getDiffText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } @Test public void getDiffText_equalValuesLessThanSize100_returnString() { // GIVEN String oldValue = "12345678901234567890"; String newValue = "12345678901234567890"; String expectedResult = oldValue; // WHEN String result = DiffUtil.getDiffText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } @Test public void getDiffText_deleteAndInsertValue_returnString() { // GIVEN String oldValue = "Hi, there?"; String newValue = "Hello, mijeong?"; String expectedResult = oldValue.substring(0, 1) + DIFF_DELETE_PREFIX + oldValue.substring(1, oldValue.length() - 1) + DIFF_DELETE_POSTFIX + DIFF_INSERT_PREFIX + newValue.substring(1, newValue.length() - 1) + DIFF_DELETE_POSTFIX + oldValue.substring(oldValue.length() - 1); // WHEN String result = DiffUtil.getDiffText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } @Test public void getDiffPlainText_oldValueIsNull_returnString() { // GIVEN String oldValue = null; String newValue = "new value"; String expectedResult = DIFF_INSERT_PLAIN_PREFIX + newValue + DIFF_NEW_LINE; // WHEN String result = DiffUtil.getDiffPlainText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } @Test public void getDiffPlainText_newValueIsNull_returnString() { // GIVEN String oldValue = "oldValue"; String newValue = null; String expectedResult = DIFF_DELETE_PLAIN_PREFIX + oldValue + DIFF_NEW_LINE; // WHEN String result = DiffUtil.getDiffPlainText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } @Test public void getDiffPlainText_equalValuesMoreThanSize100_returnString() { // GIVEN String oldValue = "12345678901234567890123456789012345678901234567890123456789012345678901234567890" + "123456789012345678901234567890"; String newValue = "12345678901234567890123456789012345678901234567890123456789012345678901234567890" + "123456789012345678901234567890"; int textLength = oldValue.length(); String expectedResult = oldValue.substring(0, 50) + DIFF_EQUAL_PLAIN_PREFIX + oldValue.substring(textLength - 50) + DIFF_NEW_LINE; // WHEN String result = DiffUtil.getDiffPlainText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } @Test public void getDiffPlainText_equalValuesLessThanSize100_returnString() { // GIVEN String oldValue = "12345678901234567890"; String newValue = "12345678901234567890"; String expectedResult = oldValue + DIFF_NEW_LINE; // WHEN String result = DiffUtil.getDiffPlainText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } @Test public void getDiffPlainText_deleteAndInsertValue_returnString() { // GIVEN String oldValue = "Hi, there?"; String newValue = "Hello, mijeong?"; String expectedResult = oldValue.substring(0, 1) + DIFF_NEW_LINE + DIFF_DELETE_PLAIN_PREFIX + oldValue.substring(1, oldValue.length() - 1) + DIFF_NEW_LINE + DIFF_INSERT_PLAIN_PREFIX + newValue.substring(1, newValue.length() - 1) + DIFF_NEW_LINE + oldValue.substring(oldValue.length() - 1) + DIFF_NEW_LINE; // WHEN String result = DiffUtil.getDiffPlainText(oldValue, newValue); // THEN assertThat(result).isEqualTo(expectedResult); } }