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diff --git a/p1/Testing.java b/p1/Testing.java
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+import org.junit.jupiter.api.*;
+import static org.junit.jupiter.api.Assertions.*;
+import java.util.*;
+
+public class Testing {
+    private Repository repo1;
+    private Repository repo2;
+
+    // Occurs before each of the individual test cases
+    // (creates new repos and resets commit ids)
+    @BeforeEach
+    public void setUp() {
+        repo1 = new Repository("repo1");
+        repo2 = new Repository("repo2");
+        Repository.Commit.resetIds();
+    }
+
+    // TODO: Write your tests here!
+
+    /////////////////////////////////////////////////////////////////////////////////
+    // PROVIDED HELPER METHODS (You don't have to use these if you don't want to!) //
+    /////////////////////////////////////////////////////////////////////////////////
+
+    // Commits all of the provided messages into the provided repo, making sure timestamps
+    // are correctly sequential (no ties). If used, make sure to include
+    //      'throws InterruptedException'
+    // much like we do with 'throws FileNotFoundException'. Example useage:
+    //
+    // repo1:
+    //      head -> null
+    // To commit the messages "one", "two", "three", "four"
+    //      commitAll(repo1, new String[]{"one", "two", "three", "four"})
+    // This results in the following after picture
+    // repo1:
+    //      head -> "four" -> "three" -> "two" -> "one" -> null
+    //
+    // YOU DO NOT NEED TO UNDERSTAND HOW THIS METHOD WORKS TO USE IT! (this is why documentation
+    // is important!)
+    public void commitAll(Repository repo, String[] messages) throws InterruptedException {
+        // Commit all of the provided messages
+        for (String message : messages) {
+            int size = repo.getRepoSize();
+            repo.commit(message);
+            
+            // Make sure exactly one commit was added to the repo
+            assertEquals(size + 1, repo.getRepoSize(),
+                         String.format("Size not correctly updated after commiting message [%s]",
+                                       message));
+
+            // Sleep to guarantee that all commits have different time stamps
+            Thread.sleep(2);
+        }
+    }
+
+    // Makes sure the given repositories history is correct up to 'n' commits, checking against
+    // all commits made in order. Example useage:
+    //
+    // repo1:
+    //      head -> "four" -> "three" -> "two" -> "one" -> null
+    //      (Commits made in the order ["one", "two", "three", "four"])
+    // To test the getHistory() method up to n=3 commits this can be done with:
+    //      testHistory(repo1, 3, new String[]{"one", "two", "three", "four"})
+    // Similarly, to test getHistory() up to n=4 commits you'd use:
+    //      testHistory(repo1, 4, new String[]{"one", "two", "three", "four"})
+    //
+    // YOU DO NOT NEED TO UNDERSTAND HOW THIS METHOD WORKS TO USE IT! (this is why documentation
+    // is important!)
+    public void testHistory(Repository repo, int n, String[] allCommits) {
+        int totalCommits = repo.getRepoSize();
+        assertTrue(n <= totalCommits,
+                   String.format("Provided n [%d] too big. Only [%d] commits",
+                                 n, totalCommits));
+        
+        String[] nCommits = repo.getHistory(n).split("\n");
+        
+        assertTrue(nCommits.length <= n,
+                   String.format("getHistory(n) returned more than n [%d] commits", n));
+        assertTrue(nCommits.length <= allCommits.length,
+                   String.format("Not enough expected commits to check against. " +
+                                 "Expected at least [%d]. Actual [%d]",
+                                 n, allCommits.length));
+        
+        for (int i = 0; i < n; i++) {
+            String commit = nCommits[i];
+
+            // Old commit messages/ids are on the left and the more recent commit messages/ids are
+            // on the right so need to traverse from right to left
+            int backwardsIndex = totalCommits - 1 - i;
+            String commitMessage = allCommits[backwardsIndex];
+
+            assertTrue(commit.contains(commitMessage),
+                       String.format("Commit [%s] doesn't contain expected message [%s]",
+                                     commit, commitMessage));
+            assertTrue(commit.contains("" + backwardsIndex),
+                       String.format("Commit [%s] doesn't contain expected id [%d]",
+                                     commit, backwardsIndex));
+        }
+    }
+}