Removes two unnecessary cells + adds missing unit test for an existing cell

ios/chrome/browser/payments/cells/shipping_address_item_unittest.mm

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "ios/chrome/browser/payments/cells/shipping_address_item.h"
+
+#import "ios/chrome/browser/ui/collection_view/cells/test_utils.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest_mac.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+namespace {
+
+// Tests that the labels are set properly after a call to |configureCell:|.
+TEST(ShippingAddressItemTest, TextLabels) {
+  ShippingAddressItem* item = [[ShippingAddressItem alloc] initWithType:0];
+
+  NSString* name = @"Jon Doe";
+  NSString* address = @"123 Main St, Anytown, USA";
+  NSString* phoneNumber = @"1234567890";
+
+  item.name = name;
+  item.address = address;
+  item.phoneNumber = phoneNumber;
+
+  id cell = [[[item cellClass] alloc] init];
+  ASSERT_TRUE([cell isMemberOfClass:[ShippingAddressCell class]]);
+
+  ShippingAddressCell* shippingAddressCell = cell;
+  EXPECT_FALSE(shippingAddressCell.nameLabel.text);
+  EXPECT_FALSE(shippingAddressCell.addressLabel.text);
+  EXPECT_FALSE(shippingAddressCell.phoneNumberLabel.text);
+
+  [item configureCell:shippingAddressCell];
+  EXPECT_NSEQ(name, shippingAddressCell.nameLabel.text);
+  EXPECT_NSEQ(address, shippingAddressCell.addressLabel.text);
+  EXPECT_NSEQ(phoneNumber, shippingAddressCell.phoneNumberLabel.text);
+}
+
+}  // namespace