Given classes are: 1) UnitTestMemory.java : import org.junit.*; import static or
ID: 3584206 • Letter: G
Question
Given classes are:
1) UnitTestMemory.java :
import org.junit.*;
import static org.junit.Assert.*;
import java.util.*;
public class UnitTestMemory
{
@Test
public void testInitSize()
{
// Test correct instantiation
Memory memBank = new Memory(20);
assertEquals(20, memBank.size());
memBank = new Memory(100);
assertEquals(100, memBank.size());
}
@Test
public void testSizeBoundaries()
{
// Test lower boundary
Memory memBank = new Memory(0);
assertEquals(0, memBank.size());
// Upper boundary is bounded by Integer.MAX_VALUE and
// will most likely exceed the maximum memory of the VM.
}
@Test
public void testRead()
{
// Create a new Memory object of a random size.
Random rnd = new Random();
int size = rnd.nextInt(10000);
int[] values = new int[size];
Memory memBank = new Memory(size);
// Write random values to every memory location
for (int i=0; i<values.length; i++)
{
values[i] = rnd.nextInt();
memBank.writeTo(i, values[i]);
}
// Read back the values from memory and ensure they are the
// same values we originally stored.
for (int i=0; i<values.length; i++)
{
assertEquals(values[i], memBank.readFrom(i));
}
}
// Ensure the default program is successfully loaded into
// memory.
@Test
public void testDefaultProgram()
{
Memory membank = new Memory(100);
membank.loadMemory();
assertEquals(799, membank.readFrom(0));
assertEquals(898, membank.readFrom(8));
}
}
2) MemoryInterface.java :
public interface MemoryInterface {
public void writeTo(int location, int value);
public int readFrom(int location);
public void loadMemory();
public int size();
}
3) TerminalInterface.java :
public interface TerminalInterface {
public int read();
public void print(int value);
}
4) UnitTestTerminal.java :
import org.junit.*;
import static org.junit.Assert.*;
import java.util.*;
public class UnitTestTerminal
{
@Test
public void testInput()
{
Terminal term = new Terminal();
Scanner scan = new Scanner(System.in);
int input;
System.out.println("Testing input...");
System.out.print("Enter an integer value: ");
input = scan.nextInt();
System.out.println("Enter the same integer value again:");
assertEquals(input, term.read());
System.out.println("Terminal input is working.");
}
}
Please help me with this programming. I only know that you need to create a "Memory" class that implements to MemoryInterface and a "Terminal" class. But i'm confused what to write for the methods.
P.S: I use the Eclipse to code these.
Explanation / Answer
class Memory{
diagram is not there......
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