lab

src/debug/ContainerArrayTest.java

@@ -44,4 +44,15 @@ public void testObjectIsRemoved () {
         myContainer.remove("Bear");
         assertEquals("Remove should be same reference", alligator, myContainer.get(0));
     }
+    @Test
+    public void testRemoveWorks(){
+    	String alligator = "Alligator";
+    	myContainer.add("Bear");
+    	myContainer.add(alligator);
+    	myContainer.remove("Bear");
+    	assertEquals("Check if the size is correct",1,myContainer.size());
+    	assertEquals("Check if Bear has been removed",alligator,myContainer.get(0));
+
+    }
+
 }

src/tdd/Sheet.java

@@ -0,0 +1,36 @@
+package tdd;
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class Sheet {
+	HashMap<String, String> posToString;
+
+	public Sheet(){
+		posToString = new HashMap<String,String>();
+	}
+
+	public String get(String s){
+		if (!posToString.keySet().contains(s)){
+			return "";
+		}
+		String result = posToString.get(s);
+		String trimmed_result = result.trim();
+		try{
+			Integer.parseInt(trimmed_result);
+			return trimmed_result;
+		}catch (NumberFormatException e){
+			return result;
+		}
+	}
+
+	public void put(String pos, String content){
+		posToString.put(pos, content);
+	}
+
+	public String getLiteral(String pos){
+		if (posToString.keySet().contains(pos)){
+			return posToString.get(pos);
+		}
+		return "";
+	}
+}

src/tdd/Test.java

@@ -0,0 +1,80 @@
+package tdd;
+import static org.junit.Assert.*;
+
+public class Test {
+
+	@org.junit.Test
+	public void testThatCellsAreEmptyByDefault() {
+		  Sheet sheet = new Sheet();
+		  assertEquals("", sheet.get("A1"));
+		  assertEquals("", sheet.get("ZX347"));
+		}
+	@org.junit.Test
+	public void testThatTextCellsAreStored() {
+		  Sheet sheet = new Sheet();
+		  String theCell = "A21";
+
+		  sheet.put(theCell, "A string");
+		  assertEquals("A string", sheet.get(theCell));
+
+		  sheet.put(theCell, "A different string");
+		  assertEquals("A different string", sheet.get(theCell));
+
+		  sheet.put(theCell, "");
+		  assertEquals("", sheet.get(theCell));
+		}
+
+	@org.junit.Test
+	public void testThatNumericCellsAreIdentifiedAndStored() {
+		Sheet sheet = new Sheet();
+		String theCell = "A21";
+
+		sheet.put(theCell, "X99"); // "Obvious" string
+		assertEquals("X99", sheet.get(theCell));
+
+		sheet.put(theCell, "14"); // "Obvious" number
+		assertEquals("14", sheet.get(theCell));
+
+		sheet.put(theCell, " 99 X"); // Whole string must be numeric
+		assertEquals(" 99 X", sheet.get(theCell));
+
+		sheet.put(theCell, " 1234 "); // Blanks ignored
+		assertEquals("1234", sheet.get(theCell));
+
+		sheet.put(theCell, " "); // Just a blank
+		assertEquals(" ", sheet.get(theCell));
+	}
+
+	@org.junit.Test
+	public void testThatManyCellsExist() {
+		Sheet sheet = new Sheet();
+		sheet.put("A1", "First");
+		sheet.put("X27", "Second");
+		sheet.put("ZX901", "Third");
+
+		assertEquals("A1", "First", sheet.get("A1"));
+		  assertEquals("X27", "Second", sheet.get("X27"));
+		  assertEquals("ZX901", "Third", sheet.get("ZX901"));
+
+		  sheet.put("A1", "Fourth");
+		  assertEquals("A1 after", "Fourth", sheet.get("A1"));
+		  assertEquals("X27 same", "Second", sheet.get("X27"));
+		  assertEquals("ZX901 same", "Third", sheet.get("ZX901"));
+		}
+
+	@org.junit.Test
+	public void testThatWeHaveAccessToCellLiteralValuesForEditing() { 
+		  Sheet sheet = new Sheet();
+		  String theCell = "A21";
+
+		  sheet.put(theCell, "Some string"); 
+		  assertEquals("Some string", sheet.getLiteral(theCell));
+
+		  sheet.put(theCell, " 1234 "); 
+		  assertEquals(" 1234 ", sheet.getLiteral(theCell));
+
+		  sheet.put(theCell, "=7"); // Foreshadowing formulas:)
+		  assertEquals("=7", sheet.getLiteral(theCell));
+		}
+
+}