package org.hamcrest.object;

import org.hamcrest.Matcher;
import org.junit.Test;

import static org.hamcrest.AbstractMatcherTest.*;
import static org.hamcrest.core.IsEqual.equalTo;
import static org.hamcrest.object.HasToString.hasToString;

public final class HasToStringTest {
    
private static final String TO_STRING_RESULT = "toString result";
    
private static final Object TEST_OBJECT = new Object() {
        
@Override
        
public String toString() {
            
return TO_STRING_RESULT;
        
}
    
};

    
@Test public void
    
copesWithNullsAndUnknownTypes() {
        
Matcher<Object> matcher = hasToString(equalTo("irrelevant"));
        

        
assertNullSafe(matcher);
        
assertUnknownTypeSafe(matcher);
    
}
    

    
@Test public void
    
matchesWhenUtilisingANestedMatcher() {
    	
final Matcher<Object> matcher = hasToString(equalTo(TO_STRING_RESULT));

    	
assertMatches(matcher, TEST_OBJECT);
    	
assertDoesNotMatch(matcher, new Object());
    
}

    
@Test public void
    
matchesWhenUsingShortcutForHasToStringEqualTo() {
    	
final Matcher<Object> matcher = hasToString(TO_STRING_RESULT);
    	

		
assertMatches(matcher, TEST_OBJECT);
    	
assertDoesNotMatch(matcher, new Object());
    
}

    
@Test public void
    
describesItself() {
    	
final Matcher<Object> matcher = hasToString(equalTo(TO_STRING_RESULT));
        
assertDescription("with toString() \"toString result\"", matcher);
    
}

    
@Test public void
    
describesAMismatch() {
    	
final Matcher<Object> matcher = hasToString(equalTo(TO_STRING_RESULT));
    	
String expectedMismatchString = "toString() was \"Cheese\"";
        
assertMismatchDescription(expectedMismatchString, matcher, "Cheese");
    
}
}