diff --git a/test/binarySearch/binarySearch.test.js b/test/binarySearch/binarySearch.test.js
index a98fc8e90..cd7d7c2ed 100644
--- a/test/binarySearch/binarySearch.test.js
+++ b/test/binarySearch/binarySearch.test.js
@@ -6,7 +6,8 @@ test('Testing binarySearch', (t) => {
   //Please go to https://github.com/substack/tape
   t.true(typeof binarySearch === 'function', 'binarySearch is a Function');
   //t.deepEqual(binarySearch(args..), 'Expected');
-  //t.equal(binarySearch(args..), 'Expected');
+  t.equal(binarySearch([1, 4, 6, 7, 12, 13, 15, 18, 19, 20, 22, 24], 6), 2, 'Finds item in array');
+  t.equal(binarySearch([1, 4, 6, 7, 12, 13, 15, 18, 19, 20, 22, 24], 21), -1, 'Returns -1 when not found');
   //t.false(binarySearch(args..), 'Expected');
   //t.throws(binarySearch(args..), 'Expected');
   t.end();
diff --git a/test/call/call.test.js b/test/call/call.test.js
index ba15d452e..bf1ed5e56 100644
--- a/test/call/call.test.js
+++ b/test/call/call.test.js
@@ -6,7 +6,7 @@ test('Testing call', (t) => {
   //Please go to https://github.com/substack/tape
   t.true(typeof call === 'function', 'call is a Function');
   //t.deepEqual(call(args..), 'Expected');
-  //t.equal(call(args..), 'Expected');
+  t.looseEqual(call('map', x => x * 2)([1, 2, 3]), [2, 4, 6], 'Calls function on given object');
   //t.false(call(args..), 'Expected');
   //t.throws(call(args..), 'Expected');
   t.end();
diff --git a/test/chainAsync/chainAsync.test.js b/test/chainAsync/chainAsync.test.js
index 7101ab686..d013df52f 100644
--- a/test/chainAsync/chainAsync.test.js
+++ b/test/chainAsync/chainAsync.test.js
@@ -6,8 +6,25 @@ test('Testing chainAsync', (t) => {
   //Please go to https://github.com/substack/tape
   t.true(typeof chainAsync === 'function', 'chainAsync is a Function');
   //t.deepEqual(chainAsync(args..), 'Expected');
-  //t.equal(chainAsync(args..), 'Expected');
+  // chainAsync([
+  //   next => {
+  //     next();
+  //   },
+  //   next => {
+  //     (() =>{
+  //       next()
+  //     })();
+  //   },
+  //   next => {
+  //     t.pass("Calls all functions in an array");
+  //     next();
+  //   }
+  // ]);
+  //
+  // // Ensure we wait for the 2nd assertion to be made
+  // t.plan(2);
+
   //t.false(chainAsync(args..), 'Expected');
   //t.throws(chainAsync(args..), 'Expected');
   t.end();
-});
\ No newline at end of file
+});
diff --git a/test/collatz/collatz.test.js b/test/collatz/collatz.test.js
index 1922e40ed..73ce78109 100644
--- a/test/collatz/collatz.test.js
+++ b/test/collatz/collatz.test.js
@@ -6,7 +6,18 @@ test('Testing collatz', (t) => {
   //Please go to https://github.com/substack/tape
   t.true(typeof collatz === 'function', 'collatz is a Function');
   //t.deepEqual(collatz(args..), 'Expected');
-  //t.equal(collatz(args..), 'Expected');
+  t.equal(collatz(8), 4, 'When n is even, divide by 2');
+  t.equal(collatz(9), 28, 'When n is odd, times by 3 and add 1');
+
+  let n = 9;
+  while(true){
+    if (n == 1){
+      t.pass('Eventually reaches 1');
+      break;
+    }
+    n = collatz(n);
+  }
+  
   //t.false(collatz(args..), 'Expected');
   //t.throws(collatz(args..), 'Expected');
   t.end();