diff --git a/test/address.js b/test/address.js
index 82230ca..5259fdc 100644
--- a/test/address.js
+++ b/test/address.js
@@ -15,8 +15,8 @@ describe('Address', function () {
         var hash = new Buffer(f.hash, 'hex')
         var addr = new Address(hash, f.version)
 
-        assert.equal(addr.version, f.version)
-        assert.equal(addr.hash.toString('hex'), f.hash)
+        assert.strictEqual(addr.version, f.version)
+        assert.strictEqual(addr.hash.toString('hex'), f.hash)
       })
     })
   })
@@ -26,8 +26,8 @@ describe('Address', function () {
       it('imports ' + f.script + ' (' + f.network + ') correctly', function () {
         var addr = Address.fromBase58Check(f.base58check)
 
-        assert.equal(addr.version, f.version)
-        assert.equal(addr.hash.toString('hex'), f.hash)
+        assert.strictEqual(addr.version, f.version)
+        assert.strictEqual(addr.hash.toString('hex'), f.hash)
       })
     })
 
@@ -46,8 +46,8 @@ describe('Address', function () {
         var script = Script.fromASM(f.script)
         var addr = Address.fromOutputScript(script, networks[f.network])
 
-        assert.equal(addr.version, f.version)
-        assert.equal(addr.hash.toString('hex'), f.hash)
+        assert.strictEqual(addr.version, f.version)
+        assert.strictEqual(addr.hash.toString('hex'), f.hash)
       })
     })
 
@@ -68,7 +68,7 @@ describe('Address', function () {
         var addr = Address.fromBase58Check(f.base58check)
         var result = addr.toBase58Check()
 
-        assert.equal(result, f.base58check)
+        assert.strictEqual(result, f.base58check)
       })
     })
   })
@@ -79,7 +79,7 @@ describe('Address', function () {
         var addr = Address.fromBase58Check(f.base58check)
         var script = addr.toOutputScript()
 
-        assert.equal(script.toASM(), f.script)
+        assert.strictEqual(script.toASM(), f.script)
       })
     })
 
diff --git a/test/bitcoin.core.js b/test/bitcoin.core.js
index 2861da4..ea9eebf 100644
--- a/test/bitcoin.core.js
+++ b/test/bitcoin.core.js
@@ -34,14 +34,14 @@ describe('Bitcoin-core', function () {
         var buffer = base58.decode(fb58)
         var actual = new Buffer(buffer).toString('hex')
 
-        assert.equal(actual, fhex)
+        assert.strictEqual(actual, fhex)
       })
 
       it('can encode ' + fhex, function () {
         var buffer = new Buffer(fhex, 'hex')
         var actual = base58.encode(buffer)
 
-        assert.equal(actual, fb58)
+        assert.strictEqual(actual, fb58)
       })
     })
   })
@@ -66,8 +66,8 @@ describe('Bitcoin-core', function () {
       it('can import ' + string, function () {
         var address = Address.fromBase58Check(string)
 
-        assert.equal(address.hash.toString('hex'), hex)
-        assert.equal(address.version, network[typeMap[params.addrType]])
+        assert.strictEqual(address.hash.toString('hex'), hex)
+        assert.strictEqual(address.version, network[typeMap[params.addrType]])
       })
     })
   })
@@ -105,12 +105,12 @@ describe('Bitcoin-core', function () {
       var keyPair = ECPair.fromWIF(string)
 
       it('imports ' + string, function () {
-        assert.equal(keyPair.d.toHex(), hex)
-        assert.equal(keyPair.compressed, params.isCompressed)
+        assert.strictEqual(keyPair.d.toHex(), hex)
+        assert.strictEqual(keyPair.compressed, params.isCompressed)
       })
 
       it('exports ' + hex + ' to ' + string, function () {
-        assert.equal(keyPair.toWIF(), string)
+        assert.strictEqual(keyPair.toWIF(), string)
       })
     })
   })
@@ -140,8 +140,8 @@ describe('Bitcoin-core', function () {
       it('fromHex can parse ' + f.id, function () {
         var block = Block.fromHex(f.hex)
 
-        assert.equal(block.getId(), f.id)
-        assert.equal(block.transactions.length, f.transactions)
+        assert.strictEqual(block.getId(), f.id)
+        assert.strictEqual(block.transactions.length, f.transactions)
       })
     })
   })
@@ -170,7 +170,7 @@ describe('Bitcoin-core', function () {
           assert.deepEqual(txIn.hash, prevOutHash)
 
           // we read UInt32, not Int32
-          assert.equal(txIn.index & 0xffffffff, prevOutIndex)
+          assert.strictEqual(txIn.index & 0xffffffff, prevOutIndex)
         })
       })
     })
@@ -200,10 +200,10 @@ describe('Bitcoin-core', function () {
 
       it('should hash ' + txHex.slice(0, 40) + '... (' + hashTypeName + ')', function () {
         var transaction = Transaction.fromHex(txHex)
-        assert.equal(transaction.toHex(), txHex)
+        assert.strictEqual(transaction.toHex(), txHex)
 
         var script = Script.fromHex(scriptHex)
-        assert.equal(script.toHex(), scriptHex)
+        assert.strictEqual(script.toHex(), scriptHex)
 
         var hash = transaction.hashForSignature(inIndex, script, hashType)
         assert.deepEqual(hash, expectedHash)
@@ -218,7 +218,7 @@ describe('Bitcoin-core', function () {
       it('can parse ' + hex, function () {
         var parsed = ECSignature.parseScriptSignature(buffer)
         var actual = parsed.signature.toScriptSignature(parsed.hashType)
-        assert.equal(actual.toString('hex'), hex)
+        assert.strictEqual(actual.toString('hex'), hex)
       })
     })
 
diff --git a/test/block.js b/test/block.js
index a91e248..8c91b13 100644
--- a/test/block.js
+++ b/test/block.js
@@ -12,12 +12,12 @@ describe('Block', function () {
       it('imports the block: ' + f.description + ' correctly', function () {
         var block = Block.fromHex(f.hex)
 
-        assert.equal(block.version, f.version)
-        assert.equal(block.prevHash.toString('hex'), f.prevHash)
-        assert.equal(block.merkleRoot.toString('hex'), f.merkleRoot)
-        assert.equal(block.timestamp, f.timestamp)
-        assert.equal(block.bits, f.bits)
-        assert.equal(block.nonce, f.nonce)
+        assert.strictEqual(block.version, f.version)
+        assert.strictEqual(block.prevHash.toString('hex'), f.prevHash)
+        assert.strictEqual(block.merkleRoot.toString('hex'), f.merkleRoot)
+        assert.strictEqual(block.timestamp, f.timestamp)
+        assert.strictEqual(block.bits, f.bits)
+        assert.strictEqual(block.nonce, f.nonce)
       })
     })
 
@@ -39,7 +39,7 @@ describe('Block', function () {
       })
 
       it('exports the block: ' + f.description + ' correctly', function () {
-        assert.equal(block.toHex(), f.hex)
+        assert.strictEqual(block.toHex(), f.hex)
       })
     })
   })
@@ -53,7 +53,7 @@ describe('Block', function () {
       })
 
       it('calculates ' + f.hash + ' for the block: ' + f.description, function () {
-        assert.equal(block.getHash().toString('hex'), f.hash)
+        assert.strictEqual(block.getHash().toString('hex'), f.hash)
       })
     })
   })
@@ -67,7 +67,7 @@ describe('Block', function () {
       })
 
       it('calculates ' + f.id + ' for the block: ' + f.description, function () {
-        assert.equal(block.getId(), f.id)
+        assert.strictEqual(block.getId(), f.id)
       })
     })
   })
@@ -83,7 +83,7 @@ describe('Block', function () {
       it('returns UTC date of ' + f.id, function () {
         var utcDate = block.getUTCDate().getTime()
 
-        assert.equal(utcDate, f.timestamp * 1e3)
+        assert.strictEqual(utcDate, f.timestamp * 1e3)
       })
     })
   })
diff --git a/test/bufferutils.js b/test/bufferutils.js
index eaef22a..86fd0c6 100644
--- a/test/bufferutils.js
+++ b/test/bufferutils.js
@@ -13,7 +13,7 @@ describe('bufferutils', function () {
 
         var size = bufferutils.pushDataSize(f.dec)
 
-        assert.equal(size, f.hexPD.length / 2)
+        assert.strictEqual(size, f.hexPD.length / 2)
       })
     })
   })
@@ -27,9 +27,9 @@ describe('bufferutils', function () {
         var d = bufferutils.readPushDataInt(buffer, 0)
         var fopcode = parseInt(f.hexPD.substr(0, 2), 16)
 
-        assert.equal(d.opcode, fopcode)
-        assert.equal(d.number, f.dec)
-        assert.equal(d.size, buffer.length)
+        assert.strictEqual(d.opcode, fopcode)
+        assert.strictEqual(d.number, f.dec)
+        assert.strictEqual(d.size, buffer.length)
       })
     })
 
@@ -40,7 +40,7 @@ describe('bufferutils', function () {
         var buffer = new Buffer(f.hexPD, 'hex')
 
         var n = bufferutils.readPushDataInt(buffer, 0)
-        assert.equal(n, null)
+        assert.strictEqual(n, null)
       })
     })
   })
@@ -51,7 +51,7 @@ describe('bufferutils', function () {
         var buffer = new Buffer(f.hex64, 'hex')
         var number = bufferutils.readUInt64LE(buffer, 0)
 
-        assert.equal(number, f.dec)
+        assert.strictEqual(number, f.dec)
       })
     })
 
@@ -72,8 +72,8 @@ describe('bufferutils', function () {
         var buffer = new Buffer(f.hexVI, 'hex')
         var d = bufferutils.readVarInt(buffer, 0)
 
-        assert.equal(d.number, f.dec)
-        assert.equal(d.size, buffer.length)
+        assert.strictEqual(d.number, f.dec)
+        assert.strictEqual(d.size, buffer.length)
       })
     })
 
@@ -106,7 +106,7 @@ describe('bufferutils', function () {
       it('encodes ' + f.dec + ' correctly', function () {
         var buffer = bufferutils.varIntBuffer(f.dec)
 
-        assert.equal(buffer.toString('hex'), f.hexVI)
+        assert.strictEqual(buffer.toString('hex'), f.hexVI)
       })
     })
   })
@@ -116,7 +116,7 @@ describe('bufferutils', function () {
       it('determines the varIntSize of ' + f.dec + ' correctly', function () {
         var size = bufferutils.varIntSize(f.dec)
 
-        assert.equal(size, f.hexVI.length / 2)
+        assert.strictEqual(size, f.hexVI.length / 2)
       })
     })
   })
@@ -130,7 +130,7 @@ describe('bufferutils', function () {
         buffer.fill(0)
 
         var n = bufferutils.writePushDataInt(buffer, f.dec, 0)
-        assert.equal(buffer.slice(0, n).toString('hex'), f.hexPD)
+        assert.strictEqual(buffer.slice(0, n).toString('hex'), f.hexPD)
       })
     })
   })
@@ -142,7 +142,7 @@ describe('bufferutils', function () {
         buffer.fill(0)
 
         bufferutils.writeUInt64LE(buffer, f.dec, 0)
-        assert.equal(buffer.toString('hex'), f.hex64)
+        assert.strictEqual(buffer.toString('hex'), f.hex64)
       })
     })
 
@@ -165,7 +165,7 @@ describe('bufferutils', function () {
         buffer.fill(0)
 
         var n = bufferutils.writeVarInt(buffer, f.dec, 0)
-        assert.equal(buffer.slice(0, n).toString('hex'), f.hexVI)
+        assert.strictEqual(buffer.slice(0, n).toString('hex'), f.hexVI)
       })
     })
 
diff --git a/test/crypto.js b/test/crypto.js
index 91827ca..c61f7cb 100644
--- a/test/crypto.js
+++ b/test/crypto.js
@@ -16,7 +16,7 @@ describe('Crypto', function () {
           var data = new Buffer(f.hex, 'hex')
           var actual = fn(data).toString('hex')
 
-          assert.equal(actual, expected)
+          assert.strictEqual(actual, expected)
         })
       })
     })
diff --git a/test/ecdsa.js b/test/ecdsa.js
index 94f0f40..709dbab 100644
--- a/test/ecdsa.js
+++ b/test/ecdsa.js
@@ -27,7 +27,7 @@ describe('ecdsa', function () {
         var h1 = crypto.sha256(f.message)
 
         var k = ecdsa.deterministicGenerateK(curve, h1, d, checkSig)
-        assert.equal(k.toHex(), f.k)
+        assert.strictEqual(k.toHex(), f.k)
       })
     })
 
@@ -42,7 +42,7 @@ describe('ecdsa', function () {
       var h1 = new Buffer(32)
       var k = ecdsa.deterministicGenerateK(curve, h1, d, checkSig)
 
-      assert.equal(k.toString(), '42')
+      assert.strictEqual(k.toString(), '42')
     }))
 
     it('loops until a suitable signature is found', sinon.test(function () {
@@ -62,7 +62,7 @@ describe('ecdsa', function () {
       var h1 = new Buffer(32)
       var k = ecdsa.deterministicGenerateK(curve, h1, d, checkSig)
 
-      assert.equal(k.toString(), '53')
+      assert.strictEqual(k.toString(), '53')
     }))
 
     fixtures.valid.rfc6979.forEach(function (f) {
@@ -77,9 +77,9 @@ describe('ecdsa', function () {
           return results.length === 16
         })
 
-        assert.equal(results[0].toHex(), f.k0)
-        assert.equal(results[1].toHex(), f.k1)
-        assert.equal(results[15].toHex(), f.k15)
+        assert.strictEqual(results[0].toHex(), f.k0)
+        assert.strictEqual(results[1].toHex(), f.k1)
+        assert.strictEqual(results[15].toHex(), f.k15)
       })
     })
   })
@@ -119,7 +119,7 @@ describe('ecdsa', function () {
           var Qprime = ecdsa.recoverPubKey(curve, e, signature, i)
           var QprimeHex = Qprime.getEncoded().toString('hex')
 
-          assert.equal(QprimeHex, expectedHex)
+          assert.strictEqual(QprimeHex, expectedHex)
         })
       })
     })
@@ -143,8 +143,8 @@ describe('ecdsa', function () {
         var hash = crypto.sha256(f.message)
         var signature = ecdsa.sign(curve, hash, d)
 
-        assert.equal(signature.r.toString(), f.signature.r)
-        assert.equal(signature.s.toString(), f.signature.s)
+        assert.strictEqual(signature.r.toString(), f.signature.r)
+        assert.strictEqual(signature.s.toString(), f.signature.s)
       })
     })
 
@@ -177,7 +177,7 @@ describe('ecdsa', function () {
         var signature = new ECSignature(new BigInteger(f.signature.r), new BigInteger(f.signature.s))
         var Q = curve.G.multiply(d)
 
-        assert.equal(ecdsa.verify(curve, H, signature, Q), false)
+        assert.strictEqual(ecdsa.verify(curve, H, signature, Q), false)
       })
     })
   })
diff --git a/test/ecpair.js b/test/ecpair.js
index 9135284..5137c52 100644
--- a/test/ecpair.js
+++ b/test/ecpair.js
@@ -18,7 +18,7 @@ describe('ECPair', function () {
     it('defaults to compressed', function () {
       var keyPair = new ECPair(BigInteger.ONE)
 
-      assert.equal(keyPair.compressed, true)
+      assert.strictEqual(keyPair.compressed, true)
     })
 
     it('supports the uncompressed option', function () {
@@ -26,7 +26,7 @@ describe('ECPair', function () {
         compressed: false
       })
 
-      assert.equal(keyPair.compressed, false)
+      assert.strictEqual(keyPair.compressed, false)
     })
 
     it('supports the network option', function () {
@@ -35,7 +35,7 @@ describe('ECPair', function () {
         network: networks.testnet
       })
 
-      assert.equal(keyPair.network, networks.testnet)
+      assert.strictEqual(keyPair.network, networks.testnet)
     })
 
     it('throws if compressed option is not a bool', function () {
@@ -70,7 +70,7 @@ describe('ECPair', function () {
           compressed: f.compressed
         })
 
-        assert.equal(keyPair.getPublicKeyBuffer().toString('hex'), f.Q)
+        assert.strictEqual(keyPair.getPublicKeyBuffer().toString('hex'), f.Q)
       })
     })
 
@@ -105,9 +105,9 @@ describe('ECPair', function () {
       it('imports ' + f.WIF + ' correctly', function () {
         var keyPair = ECPair.fromWIF(f.WIF)
 
-        assert.equal(keyPair.d.toString(), f.d)
-        assert.equal(keyPair.compressed, f.compressed)
-        assert.equal(keyPair.network, networks[f.network])
+        assert.strictEqual(keyPair.d.toString(), f.d)
+        assert.strictEqual(keyPair.compressed, f.compressed)
+        assert.strictEqual(keyPair.network, networks[f.network])
       })
     })
 
@@ -126,7 +126,7 @@ describe('ECPair', function () {
         var keyPair = ECPair.fromWIF(f.WIF)
         var result = keyPair.toWIF()
 
-        assert.equal(result, f.WIF)
+        assert.strictEqual(result, f.WIF)
       })
     })
   })
@@ -141,7 +141,7 @@ describe('ECPair', function () {
         var ProxiedECPair = proxyquire('../src/ecpair', stub)
 
         var keyPair = ProxiedECPair.makeRandom()
-        assert.equal(keyPair.toWIF(), exWIF)
+        assert.strictEqual(keyPair.toWIF(), exWIF)
       })
 
       it('passes the options param', sinon.test(function () {
@@ -162,7 +162,7 @@ describe('ECPair', function () {
         rng: function (size) { return d.slice(0, size) }
       })
 
-      assert.equal(keyPair.toWIF(), exWIF)
+      assert.strictEqual(keyPair.toWIF(), exWIF)
     })
   })
 
@@ -171,7 +171,7 @@ describe('ECPair', function () {
       it('returns ' + f.address + ' for ' + f.WIF, function () {
         var keyPair = ECPair.fromWIF(f.WIF)
 
-        assert.equal(keyPair.getAddress().toString(), f.address)
+        assert.strictEqual(keyPair.getAddress().toString(), f.address)
       })
     })
   })
diff --git a/test/ecsignature.js b/test/ecsignature.js
index 908876f..aec93a1 100644
--- a/test/ecsignature.js
+++ b/test/ecsignature.js
@@ -14,7 +14,7 @@ describe('ECSignature', function () {
         var signature = new ECSignature(new BigInteger(f.signature.r), new BigInteger(f.signature.s))
 
         var buffer = signature.toCompact(f.compact.i, f.compact.compressed)
-        assert.equal(buffer.toString('hex'), f.compact.hex)
+        assert.strictEqual(buffer.toString('hex'), f.compact.hex)
       })
     })
   })
@@ -25,10 +25,10 @@ describe('ECSignature', function () {
         var buffer = new Buffer(f.compact.hex, 'hex')
         var parsed = ECSignature.parseCompact(buffer)
 
-        assert.equal(parsed.compressed, f.compact.compressed)
-        assert.equal(parsed.i, f.compact.i)
-        assert.equal(parsed.signature.r.toString(), f.signature.r)
-        assert.equal(parsed.signature.s.toString(), f.signature.s)
+        assert.strictEqual(parsed.compressed, f.compact.compressed)
+        assert.strictEqual(parsed.i, f.compact.i)
+        assert.strictEqual(parsed.signature.r.toString(), f.signature.r)
+        assert.strictEqual(parsed.signature.s.toString(), f.signature.s)
       })
     })
 
@@ -49,7 +49,7 @@ describe('ECSignature', function () {
         var signature = new ECSignature(new BigInteger(f.signature.r), new BigInteger(f.signature.s))
 
         var DER = signature.toDER()
-        assert.equal(DER.toString('hex'), f.DER)
+        assert.strictEqual(DER.toString('hex'), f.DER)
       })
     })
   })
@@ -60,8 +60,8 @@ describe('ECSignature', function () {
         var buffer = new Buffer(f.DER, 'hex')
         var signature = ECSignature.fromDER(buffer)
 
-        assert.equal(signature.r.toString(), f.signature.r)
-        assert.equal(signature.s.toString(), f.signature.s)
+        assert.strictEqual(signature.r.toString(), f.signature.r)
+        assert.strictEqual(signature.s.toString(), f.signature.s)
       })
     })
 
@@ -82,7 +82,7 @@ describe('ECSignature', function () {
         var signature = new ECSignature(new BigInteger(f.signature.r), new BigInteger(f.signature.s))
 
         var scriptSignature = signature.toScriptSignature(f.scriptSignature.hashType)
-        assert.equal(scriptSignature.toString('hex'), f.scriptSignature.hex)
+        assert.strictEqual(scriptSignature.toString('hex'), f.scriptSignature.hex)
       })
     })
 
@@ -103,9 +103,9 @@ describe('ECSignature', function () {
         var buffer = new Buffer(f.scriptSignature.hex, 'hex')
         var parsed = ECSignature.parseScriptSignature(buffer)
 
-        assert.equal(parsed.signature.r.toString(), f.signature.r)
-        assert.equal(parsed.signature.s.toString(), f.signature.s)
-        assert.equal(parsed.hashType, f.scriptSignature.hashType)
+        assert.strictEqual(parsed.signature.r.toString(), f.signature.r)
+        assert.strictEqual(parsed.signature.s.toString(), f.signature.s)
+        assert.strictEqual(parsed.hashType, f.scriptSignature.hashType)
       })
     })
 
diff --git a/test/hdnode.js b/test/hdnode.js
index 30a07c8..3ce2163 100644
--- a/test/hdnode.js
+++ b/test/hdnode.js
@@ -66,8 +66,8 @@ describe('HDNode', function () {
         var network = networks[f.network]
         var hd = HDNode.fromSeedHex(f.master.seed, network)
 
-        assert.equal(hd.keyPair.toWIF(), f.master.wif)
-        assert.equal(hd.chainCode.toString('hex'), f.master.chainCode)
+        assert.strictEqual(hd.keyPair.toWIF(), f.master.wif)
+        assert.strictEqual(hd.chainCode.toString('hex'), f.master.chainCode)
       })
     })
 
@@ -90,7 +90,7 @@ describe('HDNode', function () {
         var network = networks[f.network]
         var hd = HDNode.fromSeedHex(f.master.seed, network).neutered()
 
-        assert.equal(hd.toBase58(), f.master.base58)
+        assert.strictEqual(hd.toBase58(), f.master.base58)
       })
     })
 
@@ -99,7 +99,7 @@ describe('HDNode', function () {
         var network = networks[f.network]
         var hd = HDNode.fromSeedHex(f.master.seed, network)
 
-        assert.equal(hd.toBase58(), f.master.base58Priv)
+        assert.strictEqual(hd.toBase58(), f.master.base58Priv)
       })
     })
   })
@@ -110,8 +110,8 @@ describe('HDNode', function () {
         var network = networks[f.network]
         var hd = HDNode.fromBase58(f.master.base58)
 
-        assert.equal(hd.toBase58(), f.master.base58)
-        assert.equal(hd.keyPair.network, network)
+        assert.strictEqual(hd.toBase58(), f.master.base58)
+        assert.strictEqual(hd.keyPair.network, network)
       })
     })
 
@@ -120,8 +120,8 @@ describe('HDNode', function () {
         var network = networks[f.network]
         var hd = HDNode.fromBase58(f.master.base58Priv, network)
 
-        assert.equal(hd.toBase58(), f.master.base58Priv)
-        assert.equal(hd.keyPair.network, network)
+        assert.strictEqual(hd.toBase58(), f.master.base58Priv)
+        assert.strictEqual(hd.keyPair.network, network)
       })
     })
 
@@ -142,7 +142,7 @@ describe('HDNode', function () {
     it('returns the identifier for ' + f.master.fingerprint, function () {
       var hd = HDNode.fromBase58(f.master.base58)
 
-      assert.equal(hd.getIdentifier().toString('hex'), f.master.identifier)
+      assert.strictEqual(hd.getIdentifier().toString('hex'), f.master.identifier)
     })
   })
 
@@ -152,7 +152,7 @@ describe('HDNode', function () {
     it('returns the fingerprint for ' + f.master.fingerprint, function () {
       var hd = HDNode.fromBase58(f.master.base58)
 
-      assert.equal(hd.getFingerprint().toString('hex'), f.master.fingerprint)
+      assert.strictEqual(hd.getFingerprint().toString('hex'), f.master.fingerprint)
     })
   })
 
@@ -169,7 +169,7 @@ describe('HDNode', function () {
       this.mock(hd.keyPair).expects('getAddress')
         .once().returns('foobar')
 
-      assert.equal(hd.getAddress(), 'foobar')
+      assert.strictEqual(hd.getAddress(), 'foobar')
     }))
   })
 
@@ -180,25 +180,25 @@ describe('HDNode', function () {
       var hd = HDNode.fromBase58(f.master.base58)
       var hdn = hd.neutered()
 
-      assert.equal(hdn.keyPair.d, null)
-      assert.equal(hdn.keyPair.Q, hd.keyPair.Q)
-      assert.equal(hdn.chainCode, hd.chainCode)
-      assert.equal(hdn.depth, hd.depth)
-      assert.equal(hdn.index, hd.index)
+      assert.strictEqual(hdn.keyPair.d, undefined)
+      assert.strictEqual(hdn.keyPair.Q, hd.keyPair.Q)
+      assert.strictEqual(hdn.chainCode, hd.chainCode)
+      assert.strictEqual(hdn.depth, hd.depth)
+      assert.strictEqual(hdn.index, hd.index)
     })
   })
 
   describe('derive', function () {
     function verifyVector (hd, v, depth) {
-      assert.equal(hd.keyPair.toWIF(), v.wif)
-      assert.equal(hd.keyPair.getPublicKeyBuffer().toString('hex'), v.pubKey)
-      assert.equal(hd.chainCode.toString('hex'), v.chainCode)
-      assert.equal(hd.depth, depth || 0)
+      assert.strictEqual(hd.keyPair.toWIF(), v.wif)
+      assert.strictEqual(hd.keyPair.getPublicKeyBuffer().toString('hex'), v.pubKey)
+      assert.strictEqual(hd.chainCode.toString('hex'), v.chainCode)
+      assert.strictEqual(hd.depth, depth || 0)
 
       if (v.hardened) {
-        assert.equal(hd.index, v.m + HDNode.HIGHEST_BIT)
+        assert.strictEqual(hd.index, v.m + HDNode.HIGHEST_BIT)
       } else {
-        assert.equal(hd.index, v.m)
+        assert.strictEqual(hd.index, v.m)
       }
     }
 
@@ -227,7 +227,7 @@ describe('HDNode', function () {
       var master = HDNode.fromBase58(f.master.base58Priv)
       var child = master.derive(c.m).neutered()
 
-      assert.equal(child.toBase58(), c.base58)
+      assert.strictEqual(child.toBase58(), c.base58)
     })
 
     it('works for Private -> public (neutered, hardened)', function () {
@@ -237,7 +237,7 @@ describe('HDNode', function () {
       var master = HDNode.fromBase58(f.master.base58Priv)
       var child = master.deriveHardened(c.m).neutered()
 
-      assert.equal(child.toBase58(), c.base58)
+      assert.strictEqual(child.toBase58(), c.base58)
     })
 
     it('works for Public -> public', function () {
@@ -247,7 +247,7 @@ describe('HDNode', function () {
       var master = HDNode.fromBase58(f.master.base58)
       var child = master.derive(c.m)
 
-      assert.equal(child.toBase58(), c.base58)
+      assert.strictEqual(child.toBase58(), c.base58)
     })
 
     it('throws on Public -> public (hardened)', function () {
diff --git a/test/integration/advanced.js b/test/integration/advanced.js
index 45e52a7..e510f4f 100644
--- a/test/integration/advanced.js
+++ b/test/integration/advanced.js
@@ -10,7 +10,7 @@ describe('bitcoinjs-lib (advanced)', function () {
     var message = 'This is an example of a signed message.'
 
     var signature = bitcoin.message.sign(keyPair, message)
-    assert.equal(signature.toString('base64'), 'G9L5yLFjti0QTHhPyFrZCT1V/MMnBtXKmoiKDZ78NDBjERki6ZTQZdSMCtkgoNmp17By9ItJr8o7ChX0XxY91nk=')
+    assert.strictEqual(signature.toString('base64'), 'G9L5yLFjti0QTHhPyFrZCT1V/MMnBtXKmoiKDZ78NDBjERki6ZTQZdSMCtkgoNmp17By9ItJr8o7ChX0XxY91nk=')
   })
 
   it('can verify a Bitcoin message', function () {
diff --git a/test/integration/basic.js b/test/integration/basic.js
index 0bb6864..4c90dcd 100644
--- a/test/integration/basic.js
+++ b/test/integration/basic.js
@@ -13,7 +13,7 @@ describe('bitcoinjs-lib (basic)', function () {
     var keyPair = bitcoin.ECPair.makeRandom({ rng: rng })
     var address = keyPair.getAddress().toString()
 
-    assert.equal(address, '1F5VhMHukdnUES9kfXqzPzMeF1GPHKiF64')
+    assert.strictEqual(address, '1F5VhMHukdnUES9kfXqzPzMeF1GPHKiF64')
   })
 
   it('can generate an address from a SHA256 hash', function () {
@@ -23,7 +23,7 @@ describe('bitcoinjs-lib (basic)', function () {
     var keyPair = new bitcoin.ECPair(d)
     var address = keyPair.getAddress().toString()
 
-    assert.equal(address, '1C7zdTfnkzmr13HfA2vNm5SJYRK6nEKyq8')
+    assert.strictEqual(address, '1C7zdTfnkzmr13HfA2vNm5SJYRK6nEKyq8')
   })
 
   it('can generate a random keypair for alternative networks', function () {
@@ -36,15 +36,15 @@ describe('bitcoinjs-lib (basic)', function () {
     var wif = keyPair.toWIF()
     var address = keyPair.getAddress().toString()
 
-    assert.equal(address, 'LZJSxZbjqJ2XVEquqfqHg1RQTDdfST5PTn')
-    assert.equal(wif, 'T7A4PUSgTDHecBxW1ZiYFrDNRih2o7M8Gf9xpoCgudPF9gDiNvuS')
+    assert.strictEqual(address, 'LZJSxZbjqJ2XVEquqfqHg1RQTDdfST5PTn')
+    assert.strictEqual(wif, 'T7A4PUSgTDHecBxW1ZiYFrDNRih2o7M8Gf9xpoCgudPF9gDiNvuS')
   })
 
   it('can import an address via WIF', function () {
     var keyPair = bitcoin.ECPair.fromWIF('Kxr9tQED9H44gCmp6HAdmemAzU3n84H3dGkuWTKvE23JgHMW8gct')
     var address = keyPair.getAddress().toString()
 
-    assert.equal(address, '19AAjaTUbRjQCMuVczepkoPswiZRhjtg31')
+    assert.strictEqual(address, '19AAjaTUbRjQCMuVczepkoPswiZRhjtg31')
   })
 
   it('can create a Transaction', function () {
@@ -55,6 +55,6 @@ describe('bitcoinjs-lib (basic)', function () {
     tx.addOutput('1Gokm82v6DmtwKEB8AiVhm82hyFSsEvBDK', 15000)
     tx.sign(0, keyPair)
 
-    assert.equal(tx.build().toHex(), '0100000001313eb630b128102b60241ca895f1d0ffca2170d5a0990e094f2182c102ab94aa000000006b483045022100aefbcf847900b01dd3e3debe054d3b6d03d715d50aea8525f5ea3396f168a1fb022013d181d05b15b90111808b22ef4f9ebe701caf2ab48db269691fdf4e9048f4f60121029f50f51d63b345039a290c94bffd3180c99ed659ff6ea6b1242bca47eb93b59fffffffff01983a0000000000001976a914ad618cf4333b3b248f9744e8e81db2964d0ae39788ac00000000')
+    assert.strictEqual(tx.build().toHex(), '0100000001313eb630b128102b60241ca895f1d0ffca2170d5a0990e094f2182c102ab94aa000000006b483045022100aefbcf847900b01dd3e3debe054d3b6d03d715d50aea8525f5ea3396f168a1fb022013d181d05b15b90111808b22ef4f9ebe701caf2ab48db269691fdf4e9048f4f60121029f50f51d63b345039a290c94bffd3180c99ed659ff6ea6b1242bca47eb93b59fffffffff01983a0000000000001976a914ad618cf4333b3b248f9744e8e81db2964d0ae39788ac00000000')
   })
 })
diff --git a/test/integration/crypto.js b/test/integration/crypto.js
index 8e69e44..a5f105f 100644
--- a/test/integration/crypto.js
+++ b/test/integration/crypto.js
@@ -37,7 +37,7 @@ describe('bitcoinjs-lib (crypto)', function () {
     // derived shared-secret address
     var address = new bitcoin.ECPair(null, QprimeS).getAddress().toString()
 
-    assert.equal(address, '1EwCNJNZM5q58YPPTnjR1H5BvYRNeyZi47')
+    assert.strictEqual(address, '1EwCNJNZM5q58YPPTnjR1H5BvYRNeyZi47')
   })
 
   // TODO
@@ -87,7 +87,7 @@ describe('bitcoinjs-lib (crypto)', function () {
     // now for the recovery
     var neuteredMaster = master.neutered()
     var recovered = recoverParent(neuteredMaster, child)
-    assert.equal(recovered.toBase58(), master.toBase58())
+    assert.strictEqual(recovered.toBase58(), master.toBase58())
   })
 
   it('can recover a private key from duplicate R values', function () {
@@ -161,7 +161,7 @@ describe('bitcoinjs-lib (crypto)', function () {
             var inputB = inputs[j]
 
             // enforce matching r values
-            assert.equal(inputA.signature.r.toString(), inputB.signature.r.toString())
+            assert.strictEqual(inputA.signature.r.toString(), inputB.signature.r.toString())
             var r = inputA.signature.r
             var rInv = r.modInverse(n)
 
@@ -181,7 +181,7 @@ describe('bitcoinjs-lib (crypto)', function () {
             var d2 = ((s2.multiply(k).mod(n)).subtract(z2).mod(n)).multiply(rInv).mod(n)
 
             // enforce matching private keys
-            assert.equal(d1.toString(), d2.toString())
+            assert.strictEqual(d1.toString(), d2.toString())
           }
         }
       })
diff --git a/test/integration/multisig.js b/test/integration/multisig.js
index 1392d95..4e2a8c0 100644
--- a/test/integration/multisig.js
+++ b/test/integration/multisig.js
@@ -16,9 +16,9 @@ describe('bitcoinjs-lib (multisig)', function () {
 
     var redeemScript = bitcoin.scripts.multisigOutput(2, pubKeys) // 2 of 3
     var scriptPubKey = bitcoin.scripts.scriptHashOutput(redeemScript.getHash())
-    var address = bitcoin.Address.fromOutputScript(scriptPubKey)
+    var address = bitcoin.Address.fromOutputScript(scriptPubKey).toString()
 
-    assert.equal(address, '36NUkt6FWUi3LAWBqWRdDmdTWbt91Yvfu7')
+    assert.strictEqual(address, '36NUkt6FWUi3LAWBqWRdDmdTWbt91Yvfu7')
   })
 
   it('can spend from a 2-of-4 multsig P2SH address', function (done) {
@@ -73,7 +73,7 @@ describe('bitcoinjs-lib (multisig)', function () {
           blockchain.addresses.summary(targetAddress, function (err, result) {
             if (err) return done(err)
 
-            assert.equal(result.balance, 1e4)
+            assert.strictEqual(result.balance, 1e4)
             done()
           })
         })
diff --git a/test/message.js b/test/message.js
index 28d6953..b478a66 100644
--- a/test/message.js
+++ b/test/message.js
@@ -17,7 +17,7 @@ describe('message', function () {
         var network = networks[f.network]
         var actual = message.magicHash(f.message, network)
 
-        assert.equal(actual.toString('hex'), f.magicHash)
+        assert.strictEqual(actual.toString('hex'), f.magicHash)
       })
     })
   })
@@ -59,13 +59,13 @@ describe('message', function () {
           compressed: false
         })
         var signature = message.sign(keyPair, f.message, network)
-        assert.equal(signature.toString('base64'), f.signature)
+        assert.strictEqual(signature.toString('base64'), f.signature)
 
         if (f.compressed) {
           var compressedPrivKey = new ECPair(new BigInteger(f.d))
           var compressedSignature = message.sign(compressedPrivKey, f.message)
 
-          assert.equal(compressedSignature.toString('base64'), f.compressed.signature)
+          assert.strictEqual(compressedSignature.toString('base64'), f.compressed.signature)
         }
       })
     })
diff --git a/test/networks.js b/test/networks.js
index 9a1ff48..4707ece 100644
--- a/test/networks.js
+++ b/test/networks.js
@@ -15,7 +15,7 @@ describe('networks', function () {
       var extb58 = f.bip32[name]
 
       it(extb58 + ' auto-detects ' + f.network, function () {
-        assert.equal(HDNode.fromBase58(extb58).keyPair.network, network)
+        assert.strictEqual(HDNode.fromBase58(extb58).keyPair.network, network)
       })
     })
   })
diff --git a/test/script.js b/test/script.js
index a202206..4ce400e 100644
--- a/test/script.js
+++ b/test/script.js
@@ -15,8 +15,8 @@ describe('Script', function () {
       var chunks = [1]
       var script = new Script(buffer, chunks)
 
-      assert.equal(script.buffer, buffer)
-      assert.equal(script.chunks, chunks)
+      assert.strictEqual(script.buffer, buffer)
+      assert.strictEqual(script.chunks, chunks)
     })
 
     it('throws an error when input is not an array', function () {
@@ -33,8 +33,8 @@ describe('Script', function () {
       it('decodes/encodes ' + f.description, function () {
         var script = Script.fromASM(f.asm)
 
-        assert.equal(script.toASM(), f.asm)
-        assert.equal(script.toHex(), f.hex)
+        assert.strictEqual(script.toASM(), f.asm)
+        assert.strictEqual(script.toHex(), f.hex)
       })
     })
   })
@@ -44,8 +44,8 @@ describe('Script', function () {
       it('decodes/encodes ' + f.description, function () {
         var script = Script.fromHex(f.hex)
 
-        assert.equal(script.toASM(), f.asm)
-        assert.equal(script.toHex(), f.hex)
+        assert.strictEqual(script.toASM(), f.asm)
+        assert.strictEqual(script.toHex(), f.hex)
       })
     })
   })
@@ -55,7 +55,7 @@ describe('Script', function () {
       it('produces a HASH160 of ' + f.description, function () {
         var script = Script.fromHex(f.hex)
 
-        assert.equal(script.getHash().toString('hex'), f.hash)
+        assert.strictEqual(script.getHash().toString('hex'), f.hash)
       })
     })
   })
@@ -71,7 +71,7 @@ describe('Script', function () {
         opcodes.OP_EQUAL
       ])
 
-      assert.equal(script.toHex(), 'a920000000000000000000000000000000000000000000000000000000000000000087')
+      assert.strictEqual(script.toHex(), 'a920000000000000000000000000000000000000000000000000000000000000000087')
     })
   })
 
@@ -82,14 +82,14 @@ describe('Script', function () {
     it('should return a script without the given value', function () {
       var subScript = script.without(opcodes.OP_HASH160)
 
-      assert.equal(subScript.toHex(), '14e8c300c87986efa94c37c0519929019ef86eb5b487')
+      assert.strictEqual(subScript.toHex(), '14e8c300c87986efa94c37c0519929019ef86eb5b487')
     })
 
     it('shouldnt mutate the original script', function () {
       var subScript = script.without(opcodes.OP_EQUAL)
 
       assert.notEqual(subScript.toHex(), hex)
-      assert.equal(script.toHex(), hex)
+      assert.strictEqual(script.toHex(), hex)
     })
   })
 })
diff --git a/test/scripts.js b/test/scripts.js
index a9e3bb4..4e0f644 100644
--- a/test/scripts.js
+++ b/test/scripts.js
@@ -22,7 +22,7 @@ describe('Scripts', function () {
         var script = Script.fromASM(f.scriptSig)
         var type = scripts.classifyInput(script)
 
-        assert.equal(type, f.type)
+        assert.strictEqual(type, f.type)
       })
     })
 
@@ -34,7 +34,7 @@ describe('Scripts', function () {
         var script = Script.fromASM(f.scriptSig)
         var type = scripts.classifyInput(script, true)
 
-        assert.equal(type, f.typeIncomplete)
+        assert.strictEqual(type, f.typeIncomplete)
       })
     })
   })
@@ -47,7 +47,7 @@ describe('Scripts', function () {
         var script = Script.fromASM(f.scriptPubKey)
         var type = scripts.classifyOutput(script)
 
-        assert.equal(type, f.type)
+        assert.strictEqual(type, f.type)
       })
     })
   })
@@ -73,14 +73,14 @@ describe('Scripts', function () {
           }
 
           it('returns ' + expected + ' for ' + f.scriptSig, function () {
-            assert.equal(inputFn(script), expected)
+            assert.strictEqual(inputFn(script), expected)
           })
 
           if (f.typeIncomplete) {
             var expectedIncomplete = type.toLowerCase() === f.typeIncomplete
 
             it('returns ' + expected + ' for ' + f.scriptSig, function () {
-              assert.equal(inputFn(script, true), expectedIncomplete)
+              assert.strictEqual(inputFn(script, true), expectedIncomplete)
             })
           }
         }
@@ -99,7 +99,7 @@ describe('Scripts', function () {
               script = Script.fromHex(f.scriptSigHex)
             }
 
-            assert.equal(inputFn(script), false)
+            assert.strictEqual(inputFn(script), false)
           })
         }
       })
@@ -113,7 +113,7 @@ describe('Scripts', function () {
           it('returns ' + expected + ' for ' + f.scriptPubKey, function () {
             var script = Script.fromASM(f.scriptPubKey)
 
-            assert.equal(outputFn(script), expected)
+            assert.strictEqual(outputFn(script), expected)
           })
         }
       })
@@ -125,7 +125,7 @@ describe('Scripts', function () {
           it('returns false for ' + f.description + ' (' + f.scriptPubKey + ')', function () {
             var script = Script.fromASM(f.scriptPubKey)
 
-            assert.equal(outputFn(script), false)
+            assert.strictEqual(outputFn(script), false)
           })
         }
       })
@@ -140,7 +140,7 @@ describe('Scripts', function () {
         var signature = new Buffer(f.signature, 'hex')
 
         var scriptSig = scripts.pubKeyInput(signature)
-        assert.equal(scriptSig.toASM(), f.scriptSig)
+        assert.strictEqual(scriptSig.toASM(), f.scriptSig)
       })
     })
   })
@@ -152,7 +152,7 @@ describe('Scripts', function () {
       it('returns ' + f.scriptPubKey, function () {
         var pubKey = new Buffer(f.pubKey, 'hex')
         var scriptPubKey = scripts.pubKeyOutput(pubKey)
-        assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
+        assert.strictEqual(scriptPubKey.toASM(), f.scriptPubKey)
       })
     })
   })
@@ -167,7 +167,7 @@ describe('Scripts', function () {
         var signature = new Buffer(f.signature, 'hex')
 
         var scriptSig = scripts.pubKeyHashInput(signature, pubKey)
-        assert.equal(scriptSig.toASM(), f.scriptSig)
+        assert.strictEqual(scriptSig.toASM(), f.scriptSig)
       })
     })
   })
@@ -181,7 +181,7 @@ describe('Scripts', function () {
 
       it('returns ' + f.scriptPubKey, function () {
         var scriptPubKey = scripts.pubKeyHashOutput(address.hash)
-        assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
+        assert.strictEqual(scriptPubKey.toASM(), f.scriptPubKey)
       })
     })
   })
@@ -196,7 +196,7 @@ describe('Scripts', function () {
         })
 
         var scriptSig = scripts.multisigInput(signatures)
-        assert.equal(scriptSig.toASM(), f.scriptSig)
+        assert.strictEqual(scriptSig.toASM(), f.scriptSig)
       })
     })
 
@@ -223,7 +223,7 @@ describe('Scripts', function () {
       var scriptPubKey = scripts.multisigOutput(pubKeys.length, pubKeys)
 
       it('returns ' + f.scriptPubKey, function () {
-        assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
+        assert.strictEqual(scriptPubKey.toASM(), f.scriptPubKey)
       })
     })
 
@@ -251,9 +251,9 @@ describe('Scripts', function () {
         var scriptSig = scripts.scriptHashInput(redeemScriptSig, redeemScript)
 
         if (f.scriptSig) {
-          assert.equal(scriptSig.toASM(), f.scriptSig)
+          assert.strictEqual(scriptSig.toASM(), f.scriptSig)
         } else {
-          assert.equal(scriptSig.toHex(), f.scriptSigHex)
+          assert.strictEqual(scriptSig.toHex(), f.scriptSigHex)
         }
       })
     })
@@ -268,7 +268,7 @@ describe('Scripts', function () {
         var redeemScript = Script.fromASM(f.redeemScript)
         var scriptPubKey = scripts.scriptHashOutput(redeemScript.getHash())
 
-        assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
+        assert.strictEqual(scriptPubKey.toASM(), f.scriptPubKey)
       })
     })
   })
@@ -281,7 +281,7 @@ describe('Scripts', function () {
       var scriptPubKey = scripts.nullDataOutput(data)
 
       it('returns ' + f.scriptPubKey, function () {
-        assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
+        assert.strictEqual(scriptPubKey.toASM(), f.scriptPubKey)
       })
     })
   })
diff --git a/test/transaction.js b/test/transaction.js
index f177318..0cd376b 100644
--- a/test/transaction.js
+++ b/test/transaction.js
@@ -48,7 +48,7 @@ describe('Transaction', function () {
       it('imports ' + f.description + ' (' + f.id + ')', function () {
         var actual = Transaction.fromHex(f.hex)
 
-        assert.equal(actual.toHex(), f.hex, actual.toHex())
+        assert.strictEqual(actual.toHex(), f.hex, actual.toHex())
       })
     })
 
@@ -66,7 +66,7 @@ describe('Transaction', function () {
       it('exports ' + f.description + ' (' + f.id + ')', function () {
         var actual = fromRaw(f.raw)
 
-        assert.equal(actual.toHex(), f.hex, actual.toHex())
+        assert.strictEqual(actual.toHex(), f.hex, actual.toHex())
       })
     })
   })
@@ -87,22 +87,22 @@ describe('Transaction', function () {
 
     it('returns an index', function () {
       var tx = new Transaction()
-      assert.equal(tx.addInput(prevTxHash, 0), 0)
-      assert.equal(tx.addInput(prevTxHash, 0), 1)
+      assert.strictEqual(tx.addInput(prevTxHash, 0), 0)
+      assert.strictEqual(tx.addInput(prevTxHash, 0), 1)
     })
 
     it('defaults to DEFAULT_SEQUENCE', function () {
       var tx = new Transaction()
       tx.addInput(prevTxHash, 0)
 
-      assert.equal(tx.ins[0].sequence, Transaction.DEFAULT_SEQUENCE)
+      assert.strictEqual(tx.ins[0].sequence, Transaction.DEFAULT_SEQUENCE)
     })
 
     it('defaults to empty script', function () {
       var tx = new Transaction()
       tx.addInput(prevTxHash, 0)
 
-      assert.equal(tx.ins[0].script, Script.EMPTY)
+      assert.strictEqual(tx.ins[0].script, Script.EMPTY)
     })
 
     fixtures.invalid.addInput.forEach(function (f) {
@@ -120,8 +120,8 @@ describe('Transaction', function () {
   describe('addOutput', function () {
     it('returns an index', function () {
       var tx = new Transaction()
-      assert.equal(tx.addOutput(Script.EMPTY, 0), 0)
-      assert.equal(tx.addOutput(Script.EMPTY, 0), 1)
+      assert.strictEqual(tx.addOutput(Script.EMPTY, 0), 0)
+      assert.strictEqual(tx.addOutput(Script.EMPTY, 0), 1)
     })
   })
 
@@ -149,7 +149,7 @@ describe('Transaction', function () {
       it('should return the id for ' + f.id, function () {
         var tx = Transaction.fromHex(f.hex)
 
-        assert.equal(tx.getId(), f.id)
+        assert.strictEqual(tx.getId(), f.id)
       })
     })
   })
@@ -159,7 +159,7 @@ describe('Transaction', function () {
       it('should return the hash for ' + f.id, function () {
         var tx = Transaction.fromHex(f.hex)
 
-        assert.equal(tx.getHash().toString('hex'), f.hash)
+        assert.strictEqual(tx.getHash().toString('hex'), f.hash)
       })
     })
   })
diff --git a/test/transaction_builder.js b/test/transaction_builder.js
index 4b9f255..ad5dbe3 100644
--- a/test/transaction_builder.js
+++ b/test/transaction_builder.js
@@ -77,40 +77,40 @@ describe('TransactionBuilder', function () {
   describe('addInput', function () {
     it('accepts a txHash, index [and sequence number]', function () {
       var vin = txb.addInput(prevTxHash, 1, 54)
-      assert.equal(vin, 0)
+      assert.strictEqual(vin, 0)
 
       var txIn = txb.tx.ins[0]
-      assert.equal(txIn.hash, prevTxHash)
-      assert.equal(txIn.index, 1)
-      assert.equal(txIn.sequence, 54)
-      assert.equal(txb.inputs[0].prevOutScript, undefined)
+      assert.strictEqual(txIn.hash, prevTxHash)
+      assert.strictEqual(txIn.index, 1)
+      assert.strictEqual(txIn.sequence, 54)
+      assert.strictEqual(txb.inputs[0].prevOutScript, undefined)
     })
 
     it('accepts a txHash, index [, sequence number and scriptPubKey]', function () {
       var vin = txb.addInput(prevTxHash, 1, 54, prevTx.outs[1].script)
-      assert.equal(vin, 0)
+      assert.strictEqual(vin, 0)
 
       var txIn = txb.tx.ins[0]
-      assert.equal(txIn.hash, prevTxHash)
-      assert.equal(txIn.index, 1)
-      assert.equal(txIn.sequence, 54)
-      assert.equal(txb.inputs[0].prevOutScript, prevTx.outs[1].script)
+      assert.strictEqual(txIn.hash, prevTxHash)
+      assert.strictEqual(txIn.index, 1)
+      assert.strictEqual(txIn.sequence, 54)
+      assert.strictEqual(txb.inputs[0].prevOutScript, prevTx.outs[1].script)
     })
 
     it('accepts a prevTx, index [and sequence number]', function () {
       var vin = txb.addInput(prevTx, 1, 54)
-      assert.equal(vin, 0)
+      assert.strictEqual(vin, 0)
 
       var txIn = txb.tx.ins[0]
       assert.deepEqual(txIn.hash, prevTxHash)
-      assert.equal(txIn.index, 1)
-      assert.equal(txIn.sequence, 54)
-      assert.equal(txb.inputs[0].prevOutScript, prevTx.outs[1].script)
+      assert.strictEqual(txIn.index, 1)
+      assert.strictEqual(txIn.sequence, 54)
+      assert.strictEqual(txb.inputs[0].prevOutScript, prevTx.outs[1].script)
     })
 
     it('returns the input index', function () {
-      assert.equal(txb.addInput(prevTxHash, 0), 0)
-      assert.equal(txb.addInput(prevTxHash, 1), 1)
+      assert.strictEqual(txb.addInput(prevTxHash, 0), 0)
+      assert.strictEqual(txb.addInput(prevTxHash, 1), 1)
     })
 
     it('throws if SIGHASH_ALL has been used to sign any existing scriptSigs', function () {
@@ -126,29 +126,29 @@ describe('TransactionBuilder', function () {
   describe('addOutput', function () {
     it('accepts an address string and value', function () {
       var vout = txb.addOutput(privAddress.toBase58Check(), 1000)
-      assert.equal(vout, 0)
+      assert.strictEqual(vout, 0)
 
       var txout = txb.tx.outs[0]
       assert.deepEqual(txout.script, privScript)
-      assert.equal(txout.value, 1000)
+      assert.strictEqual(txout.value, 1000)
     })
 
     it('accepts an Address object and value', function () {
       var vout = txb.addOutput(privAddress, 1000)
-      assert.equal(vout, 0)
+      assert.strictEqual(vout, 0)
 
       var txout = txb.tx.outs[0]
       assert.deepEqual(txout.script, privScript)
-      assert.equal(txout.value, 1000)
+      assert.strictEqual(txout.value, 1000)
     })
 
     it('accepts a ScriptPubKey and value', function () {
       var vout = txb.addOutput(privScript, 1000)
-      assert.equal(vout, 0)
+      assert.strictEqual(vout, 0)
 
       var txout = txb.tx.outs[0]
       assert.deepEqual(txout.script, privScript)
-      assert.equal(txout.value, 1000)
+      assert.strictEqual(txout.value, 1000)
     })
 
     it('throws if SIGHASH_ALL has been used to sign any existing scriptSigs', function () {
@@ -196,7 +196,7 @@ describe('TransactionBuilder', function () {
         construct(txb, f)
 
         var tx = txb.build()
-        assert.equal(tx.toHex(), f.txHex)
+        assert.strictEqual(tx.toHex(), f.txHex)
       })
     })
 
@@ -247,7 +247,7 @@ describe('TransactionBuilder', function () {
 
                 // rebuild/replace the scriptSig without them
                 var replacement = scripts.scriptHashInput(scripts.multisigInput(signatures), redeemScript)
-                assert.equal(replacement.toASM(), sign.scriptSigFiltered)
+                assert.strictEqual(replacement.toASM(), sign.scriptSigFiltered)
                 sign.scriptSigFiltered = replacement.toASM()
 
                 tx.ins[i].script = replacement
@@ -264,12 +264,12 @@ describe('TransactionBuilder', function () {
             tx = txb.buildIncomplete()
 
             // now verify the serialized scriptSig is as expected
-            assert.equal(tx.ins[i].script.toASM(), sign.scriptSig)
+            assert.strictEqual(tx.ins[i].script.toASM(), sign.scriptSig)
           })
         })
 
         tx = txb.build()
-        assert.equal(tx.toHex(), f.txHex)
+        assert.strictEqual(tx.toHex(), f.txHex)
       })
     })
   })
@@ -280,7 +280,7 @@ describe('TransactionBuilder', function () {
         var tx = Transaction.fromHex(f.txHex)
         var txb = TransactionBuilder.fromTransaction(tx)
 
-        assert.equal(txb.build().toHex(), f.txHex)
+        assert.strictEqual(txb.build().toHex(), f.txHex)
       })
     })