package com.sandwich.koan.runner;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.fail;
import java.io.PrintStream;
import java.util.Collections;
import java.util.List;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.sandwich.koan.path.CommandLineTestCase;
import com.sandwich.koan.path.PathToEnlightenment;
import com.sandwich.koan.path.PathToEnlightenment.Path;
public class CommandLineTestCaseTest {
CommandLineTestCase testCase;
@Before
public void setUp(){
testCase = new CommandLineTestCase(){};
}
@After
public void tearDown(){
testCase.tearDown(); // really important - will remove regular System.out if commented!
testCase = null;
}
@Test
public void testThatConsoleIsInitializedBySetUp() throws Exception {
PrintStream originalOut = System.out;
testCase.setUp();
assertNotSame(originalOut, System.out);
}
@Test
public void testThatConsoleIsCleanAfterSetUp() throws Exception {
testCase.setUp();
testCase.assertSystemOutLineEquals(0, "");
}
@Test
public void testThatConsoleIsAttachedToSystem() throws Exception {
testCase.setUp();
System.out.print("hello \n world!");
testCase.assertSystemOutLineEquals(0, "hello ");
testCase.assertSystemOutLineEquals(1, " world!");
}
@Test
public void testThatAssertSystemOutLineEquals_withTrimStringArg() throws Exception {
testCase.setUp();
System.out.println(" hello \n world! ");
testCase.assertSystemOutLineEquals(0, "hello", true);
testCase.assertSystemOutLineEquals(1, "world!", true);
}
@Test
public void testThatTearDownDetachesDummiedConsoleFromSystem(){
PrintStream originalConsole = System.out;
testCase.setUp();
PrintStream fakeConsole = System.out;
assertNotSame(fakeConsole, originalConsole);
testCase.tearDown();
assertSame(originalConsole, System.out);
}
@Test
public void testThatStubAllKoansStubsAllKoansReference() throws Exception {
Path oldKoans = PathToEnlightenment.getPathToEnlightenment();
List<Object> newKoans = Collections.emptyList();
testCase.stubAllKoans(newKoans);
assertNotSame(oldKoans, PathToEnlightenment.getPathToEnlightenment());
// number of suites
assertEquals(0, PathToEnlightenment.getPathToEnlightenment()
.iterator().next().getValue().size());
}
@Test
public void testTestCaseRestoresAllKoansReference() throws Exception {
Path oldKoans = PathToEnlightenment.getPathToEnlightenment();
List<Object> newKoans = Collections.emptyList();
testCase.stubAllKoans(newKoans);
assertNotSame(oldKoans, PathToEnlightenment.getPathToEnlightenment());
testCase.tearDown();
// creates all new instance
assertNotSame(oldKoans, PathToEnlightenment.getPathToEnlightenment());
assertEquals(oldKoans, PathToEnlightenment.getPathToEnlightenment());
}
@Test
public void testClearSysout() throws Exception {
testCase.setUp();
System.out.print("!");
testCase.assertSystemOutLineEquals(0, "!");
testCase.clearSysout();
testCase.assertSystemOutLineEquals(0, "");
}
@Test
public void testSystemOutEquals_freshStart(){
testCase.setUp();
testCase.assertSystemOutEquals("");
}
@Test
public void testSystemOutEquals_aString() throws Exception {
String helloWorld = "Hello World!";
testCase.setUp();
testCase.assertSystemOutEquals("");
System.out.print(helloWorld);
testCase.assertSystemOutEquals(helloWorld);
}
@Test
public void testSystemOutContains_happyPath() throws Exception {
testCase.setUp();
String zeroThruOne = "01";
System.out.print(zeroThruOne);
for(char c : zeroThruOne.toCharArray()){
testCase.assertSystemOutContains(String.valueOf(c));
}
}
@Test
public void testSystemOutContains_failurePath() throws Exception {
testCase.setUp();
String zeroThruOne = "01";
System.out.print(zeroThruOne);
try{
testCase.assertSystemOutContains(String.valueOf("a"));
fail();
}catch(AssertionError ex){
assertEquals("<a> wasn't found in: <01>", ex.getMessage());
}
}
}