84 lines
2.4 KiB
Java
84 lines
2.4 KiB
Java
package com.baeldung.string;
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import org.junit.Test;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import static org.junit.Assert.assertEquals;
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public class JoinerSplitterUnitTest {
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@Test
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public void provided_array_convert_to_stream_and_convert_to_string() {
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String[] programming_languages = {"java", "python", "nodejs", "ruby"};
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String expectation = "java,python,nodejs,ruby";
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String result = JoinerSplitter.join(programming_languages);
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assertEquals(result, expectation);
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}
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@Test
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public void givenArray_transformedToStream_convertToPrefixPostfixString() {
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String[] programming_languages = {"java", "python",
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"nodejs", "ruby"};
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String expectation = "[java,python,nodejs,ruby]";
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String result = JoinerSplitter.joinWithPrefixPostFix(programming_languages);
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assertEquals(result, expectation);
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}
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@Test
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public void givenString_transformedToStream_convertToList() {
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String programming_languages = "java,python,nodejs,ruby";
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List<String> expectation = new ArrayList<String>();
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expectation.add("java");
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expectation.add("python");
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expectation.add("nodejs");
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expectation.add("ruby");
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List<String> result = JoinerSplitter.split(programming_languages);
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assertEquals(result, expectation);
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}
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@Test
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public void givenString_transformedToStream_convertToListOfChar() {
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String programming_languages = "java,python,nodejs,ruby";
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List<Character> expectation = new ArrayList<Character>();
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char[] charArray = programming_languages.toCharArray();
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for (char c : charArray) {
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expectation.add(c);
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}
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List<Character> result = JoinerSplitter.splitToListOfChar(programming_languages);
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assertEquals(result, expectation);
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}
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@Test
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public void givenStringArray_transformedToStream_convertToMap() {
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String[] programming_languages = new String[] {"language:java","os:linux","editor:emacs"};
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Map<String,String> expectation=new HashMap<>();
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expectation.put("language", "java");
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expectation.put("os", "linux");
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expectation.put("editor", "emacs");
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Map<String, String> result = JoinerSplitter.arrayToMap(programming_languages);
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assertEquals(result, expectation);
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}
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}
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