From 70a19bdce805fcc321978a44630fd68cf1dc49cd Mon Sep 17 00:00:00 2001
From: Ben Johnson <benbjohnson@yahoo.com>
Date: Wed, 6 Mar 2019 09:07:50 -0700
Subject: Remove go-cmp dependency

---
 go.mod            |  2 --
 go.sum            |  2 --
 immutable_test.go | 11 +++++++----
 3 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/go.mod b/go.mod
index 9fa105c..ea97e54 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,3 @@
 module github.com/benbjohnson/immutable
 
 go 1.12
-
-require github.com/google/go-cmp v0.2.0
diff --git a/go.sum b/go.sum
index 5f4f636..e69de29 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +0,0 @@
-github.com/google/go-cmp v0.2.0 h1:+dTQ8DZQJz0Mb/HjFlkptS1FeQ4cWSnN941F8aEG4SQ=
-github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
diff --git a/immutable_test.go b/immutable_test.go
index 1512e93..ca2393b 100644
--- a/immutable_test.go
+++ b/immutable_test.go
@@ -6,8 +6,6 @@ import (
 	"math/rand"
 	"sort"
 	"testing"
-
-	"github.com/google/go-cmp/cmp"
 )
 
 var (
@@ -1334,8 +1332,13 @@ func (m *TMap) validateIterator(mm *Map) error {
 		k, v := itr.Next()
 		other[k.(int)] = v.(int)
 	}
-	if diff := cmp.Diff(other, m.std); diff != "" {
-		return fmt.Errorf("map iterator mismatch: %s", diff)
+	if len(other) != len(m.std) {
+		return fmt.Errorf("map iterator size mismatch: %v!=%v", len(m.std), len(other))
+	}
+	for k, v := range m.std {
+		if v != other[k] {
+			return fmt.Errorf("map iterator mismatch: key=%v, %v!=%v", k, v, other[k])
+		}
 	}
 	if k, v := itr.Next(); k != nil || v != nil {
 		return fmt.Errorf("map iterator returned key/value after done: <%v/%v>", k, v)
-- 
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