Add CheckTextButtonCellButtonText() into ChromeTableViewControllerTest

To allow checks for |buttonText|.

Change-Id: I367876e36e669b56a2dc4cd436665bd600be398e
Reviewed-on: https://chromium-review.googlesource.com/c/1356716
Commit-Queue: Huanzhong Huang <huanzhong@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614311}

ios/chrome/browser/ui/table_view/chrome_table_view_controller_test.h

@@ -112,6 +112,19 @@ class ChromeTableViewControllerTest : public BlockCleanupTest {
                           int section,
                           int item);
 
+  // Verifies that the text button cell at |item| in |section| has the given
+  // |buttonText|.
+  void CheckTextButtonCellButtonText(NSString* expected_button_text,
+                                     int section,
+                                     int item);
+
+  // Verifies that the text button cell at |item| in |section| has a
+  // |buttonText| property which matches the l10n string for
+  // |expected_button_text_id|.
+  void CheckTextButtonCellButtonTextWithId(int expected_button_text_id,
+                                           int section,
+                                           int item);
+
   // For |section|, deletes the item at |item|. |completion_block| is called at
   // the end of the call to -performBatchUpdates:completion:.
   void DeleteItem(int section, int item, ProceduralBlock completion_block);

ios/chrome/browser/ui/table_view/chrome_table_view_controller_test.mm

@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #import "base/mac/foundation_util.h"
+#import "ios/chrome/browser/ui/table_view/cells/table_view_text_button_item.h"
 #import "ios/chrome/browser/ui/table_view/cells/table_view_text_item.h"
 #import "ios/chrome/browser/ui/table_view/chrome_table_view_controller.h"
 
@@ -187,6 +188,23 @@ void ChromeTableViewControllerTest::CheckAccessoryType(
   EXPECT_EQ(accessory_type, [text_item accessoryType]);
 }
 
+void ChromeTableViewControllerTest::CheckTextButtonCellButtonText(
+    NSString* expected_button_text,
+    int section,
+    int item) {
+  id text_button_item = GetTableViewItem(section, item);
+  ASSERT_TRUE([text_button_item respondsToSelector:@selector(buttonText)]);
+  EXPECT_NSEQ(expected_button_text, [text_button_item buttonText]);
+}
+
+void ChromeTableViewControllerTest::CheckTextButtonCellButtonTextWithId(
+    int expected_button_text_id,
+    int section,
+    int item) {
+  CheckTextButtonCellButtonText(l10n_util::GetNSString(expected_button_text_id),
+                                section, item);
+}
+
 void ChromeTableViewControllerTest::DeleteItem(
     int section,
     int item,