Merge pull request #18 from atusa17/PAN-10
PAN-10 code & test corrections. 100% coverage & passed.
This commit is contained in:
@@ -0,0 +1,43 @@
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package edu.msudenver.tsp.services.parser;
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import lombok.Getter;
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import lombok.Setter;
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public class Node
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{
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@Getter private final String statement;
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@Getter @Setter private Node left;
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@Getter @Setter private Node right;
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@Getter @Setter private Node center;
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@Getter private final Node parent;
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@Getter private final int depth;
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public Node(final String statement, final Node parent)
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{
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this.statement = statement + "\n";
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left = null;
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right = null;
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center = null;
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this.parent = parent;
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if(parent != null)
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{
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depth = parent.depth + 1;
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}
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else
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{
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depth = 0;
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}
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}
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@Override
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public String toString()
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{
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String returnVal = this.depth + ": " + this.statement;
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if(this.left != null) returnVal += "... " + this.left.toString();
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if(this.center != null) returnVal += "... " + this.center.toString();
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if(this.right != null) returnVal += "... " + this.right.toString();
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return returnVal;
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}
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}
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@@ -1,11 +0,0 @@
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package edu.msudenver.tsp.services.parser;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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@Configuration
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@ComponentScan
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//@PropertySource("classpath:development.properties")
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public class ParserConfig {
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}
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@@ -7,12 +7,16 @@ import edu.msudenver.tsp.persistence.controller.TheoremController;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import java.util.ArrayList;
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import java.util.List;
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@Service
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class ParserService {
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private final DefinitionController definitionController;
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private final TheoremController theoremController;
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private final NotationController notationController;
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private final ProofController proofController;
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private Node root;
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@Autowired
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public ParserService(final DefinitionController definitionController, final TheoremController theoremController,
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@@ -23,4 +27,117 @@ class ParserService {
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this.proofController = proofController;
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}
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public boolean parseUserInput(final String userInput)
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{
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try {
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final Node tree = parseRawInput(userInput);
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final List<String> statements = retrieveStatements(tree);
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return true;
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} catch(final Exception e) {
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e.printStackTrace();
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}
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return false;
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}
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public Node parseRawInput(String input)
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{
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input = input.toLowerCase();
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root = new Node(input, null);
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if(input.equals(""))
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{
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return root;
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}
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recurse(root);
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return root;
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}
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private void recurse(final Node current)
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{
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int startIndex;
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int endIndex;
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final String statement;
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if (current != null) {
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statement = current.getStatement();
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} else {
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return;
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}
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String nextStatement;
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if(statement.contains("let"))
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{
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current.setLeft(new Node("let", current));
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startIndex = statement.indexOf("let")+"let".length();
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if(statement.contains("if")){
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endIndex = statement.indexOf("if");
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} else if(statement.contains("then")){
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endIndex = statement.indexOf("then");
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} else {
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endIndex = statement.length();
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}
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nextStatement = statement.substring(startIndex, endIndex);
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current.getLeft().setCenter(new Node(nextStatement, current.getLeft()));
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recurse(current.getLeft().getCenter());
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}
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if(statement.contains("if"))
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{
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current.setCenter(new Node("if", current));
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startIndex = statement.indexOf("if")+"if".length();
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endIndex = (statement.contains("then") ? statement.indexOf("then") : statement.length());
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nextStatement = statement.substring(startIndex, endIndex);
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current.getCenter().setCenter(new Node(nextStatement, current.getCenter()));
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recurse(current.getCenter().getCenter());
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}
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if(current.getStatement().contains("then"))
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{
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current.setRight(new Node("then", current));
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startIndex = statement.indexOf("then")+"then".length();
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nextStatement = statement.substring(startIndex);
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current.getRight().setCenter(new Node(nextStatement, current.getRight()));
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recurse(current.getRight().getCenter());
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}
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}
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public List<String> retrieveStatements(final Node parsedTree)
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{
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return populateStatementList(parsedTree, new ArrayList<>());
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}
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private ArrayList<String> populateStatementList(final Node node, final ArrayList<String> statementList)
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{
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if(node == null)
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{
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return statementList;
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}
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final String statement = node.getStatement().trim();
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if(!(statement.contains("let") || statement.contains("if") || statement.contains("then")))
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{
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statementList.add(statement);
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}
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populateStatementList(node.getLeft(), statementList);
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populateStatementList(node.getCenter(), statementList);
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populateStatementList(node.getRight(), statementList);
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return statementList;
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}
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}
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@@ -1,17 +1,143 @@
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package edu.msudenver.tsp.services.parser;
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import edu.msudenver.tsp.persistence.controller.DefinitionController;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.mockito.InjectMocks;
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import org.mockito.runners.MockitoJUnitRunner;
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import java.util.ArrayList;
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import java.util.List;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertTrue;
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import static org.mockito.Matchers.anyString;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.when;
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@RunWith(MockitoJUnitRunner.class)
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public class ParserServiceTest {
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private final DefinitionController definitionControllerMock = mock(DefinitionController.class);
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private final ParserService mockParserService = mock(ParserService.class);
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@InjectMocks
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private final ParserService parserService = new ParserService(definitionControllerMock, null,
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null, null);
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@Test
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public void test() {
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assertEquals(3,3);
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public void testEmptyStringEqualsEmptyString() {
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final String expected = "0: \n";
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final String actual = parserService.parseRawInput("").toString();
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assertEquals(expected, actual);
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}
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@Test
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public void testUselessStringEqualsUselessString() {
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final String expected = "0: cat\n";
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final String actual = parserService.parseRawInput("cat").toString();
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assertEquals(expected, actual);
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}
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@Test
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public void testSingleIfReturnsIfPlusEmptyString() {
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final String expected = "0: if\n... 1: if\n... 2: \n\n";
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final String actual = parserService.parseRawInput("if").toString();
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assertEquals(expected, actual);
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}
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@Test
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public void testBaseCaseIfXIsEvenThenXSquaredIsEven() {
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final String expected = "0: if x is even then x^2 is even\n" +
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"... 1: if\n" +
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"... 2: x is even \n" +
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"... 1: then\n" +
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"... 2: x^2 is even\n\n";
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final String actual = parserService.parseRawInput("if x is even then x^2 is even").toString();
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assertEquals(expected, actual);
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}
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@Test
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public void testLetXBeEvenThenXSquaredIsEven() {
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final String expected = "0: let x be even. then x^2 is even.\n" +
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"... 1: let\n" +
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"... 2: x be even. \n" +
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"... 1: then\n" +
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"... 2: x^2 is even.\n\n";
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final String actual = parserService.parseRawInput("Let x be even. Then x^2 is even.").toString();
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assertEquals(expected, actual);
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}
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@Test
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public void testLetIfThen() {
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final String expected = "0: let a. if b, then c.\n" +
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"... 1: let\n" +
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"... 2: a. \n" +
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"... 1: if\n" +
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"... 2: b, \n" +
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"... 1: then\n" +
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"... 2: c.\n\n";
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final String actual = parserService.parseRawInput("Let a. If b, then c.").toString();
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assertEquals(expected, actual);
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}
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@Test
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public void testLetStatementWithoutAnyIfOrThenStatements() {
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final String expected = "0: let a be equal to b.\n" +
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"... 1: let\n" +
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"... 2: a be equal to b.\n\n";
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final String actual = parserService.parseRawInput("Let a be equal to b.").toString();
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assertEquals(expected, actual);
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}
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@Test
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public void testEmptyStringReturnsEmptyList() {
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final List<String> expectedList = new ArrayList<>();
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expectedList.add("");
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when(mockParserService.parseRawInput(anyString())).thenReturn(new Node("", null));
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final List<String> actualList = parserService.retrieveStatements(mockParserService.parseRawInput(""));
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assertEquals(expectedList, actualList);
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}
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@Test
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public void testBaseCaseReturnsXIsEven() {
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final List<String> expectedList = new ArrayList<>();
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expectedList.add("x is even");
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expectedList.add("x^2 is even");
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final Node testNode = new Node("if x is even then x^2 is even", null);
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testNode.setCenter(new Node("if", testNode));
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testNode.getCenter().setCenter(new Node(" x is even ", testNode.getCenter()));
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testNode.setRight(new Node("then", testNode));
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testNode.getRight().setCenter(new Node(" x^2 is even", testNode.getRight()));
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when(mockParserService.parseRawInput(anyString())).thenReturn(testNode);
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final List<String> actualList = parserService.retrieveStatements(mockParserService.parseRawInput("baseCase"));
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assertEquals(expectedList, actualList);
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}
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@Test
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public void testDriveParseUserInput() {
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final Node testNode = new Node("", null);
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when(mockParserService.parseRawInput(anyString())).thenReturn(testNode);
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when(mockParserService.retrieveStatements(testNode)).thenReturn(new ArrayList<>());
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final boolean successfulTestDrive = parserService.parseUserInput("");
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assertTrue(successfulTestDrive);
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}
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}
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