From 348b11da4f1f52071888f93296e28991a0b5ffdf Mon Sep 17 00:00:00 2001
From: Roman Klauke <romaaan.git@gmail.com>
Date: Thu, 27 Oct 2016 14:25:54 -0700
Subject: [PATCH] reword some assertions with more informations

Summary:
This commit changes some assertion texts. No behavior is changed; no assertions are added (just reworded).  Some of them were short or contained no real meaningful informations, where the error probably is.

Ref: #113

- [x] All tests pass. Demo project builds and runs.
- [x] I added tests, an experiment, or detailed why my change isn't tested.
- [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/CONTRIBUTING.md)
Closes https://github.com/Instagram/IGListKit/pull/122

Differential Revision: D4090470

Pulled By: rnystrom

fbshipit-source-id: 96f492a1efd258ec3424ce334802229fdbdee191
---
 Source/IGListAdapter.m | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/Source/IGListAdapter.m b/Source/IGListAdapter.m
index 2a3b90f5..34a706b9 100644
--- a/Source/IGListAdapter.m
+++ b/Source/IGListAdapter.m
@@ -286,7 +286,7 @@
     }
 
     UICollectionView *collectionView = self.collectionView;
-    IGAssert(collectionView != nil, @"Reloading adapter without a collection view");
+    IGAssert(collectionView != nil, @"Tried to reload the adapter without a collection view");
 
     [self.updatingDelegate reloadCollectionView:collectionView sections:sections];
 }
@@ -717,7 +717,7 @@
     IGParameterAssert(cellClass != nil);
     IGParameterAssert(index >= 0);
     UICollectionView *collectionView = self.collectionView;
-    IGAssert(collectionView != nil, @"Reloading adapter without a collection view.");
+    IGAssert(collectionView != nil, @"Dequeueing cell of class %@ from section controller %@ without a collection view at index %zi", NSStringFromClass(cellClass), sectionController, index);
     NSString *identifier = IGListReusableViewIdentifier(cellClass, nil, nil);
     NSIndexPath *indexPath = [self indexPathForSectionController:sectionController index:index];
     if (![self.registeredCellClasses containsObject:cellClass]) {
@@ -748,7 +748,7 @@
     IGParameterAssert(sectionController != nil);
     IGParameterAssert(index >= 0);
     UICollectionView *collectionView = self.collectionView;
-    IGAssert(collectionView != nil, @"Reloading adapter without a collection view.");
+    IGAssert(collectionView != nil, @"Dequeueing cell with nib name %@ and bundle %@ from section controller %@ without a collection view at index %zi.", nibName, bundle, sectionController, index);
     NSIndexPath *indexPath = [self indexPathForSectionController:sectionController index:index];
     if (![self.registeredNibNames containsObject:nibName]) {
         [self.registeredNibNames addObject:nibName];
@@ -768,7 +768,7 @@
     IGParameterAssert(viewClass != nil);
     IGParameterAssert(index >= 0);
     UICollectionView *collectionView = self.collectionView;
-    IGAssert(collectionView != nil, @"Reloading adapter without a collection view.");
+    IGAssert(collectionView != nil, @"Dequeueing cell of class %@ from section controller %@ without a collection view at index %zi with supplementary view %@", NSStringFromClass(viewClass), sectionController, index, elementKind);
     NSString *identifier = IGListReusableViewIdentifier(viewClass, nil, elementKind);
     NSIndexPath *indexPath = [self indexPathForSectionController:sectionController index:index];
     if (![self.registeredSupplementaryViewIdentifiers containsObject:identifier]) {
@@ -783,7 +783,7 @@
     IGParameterAssert(indexes != nil);
     IGParameterAssert(sectionController != nil);
     UICollectionView *collectionView = self.collectionView;
-    IGAssert(collectionView != nil, @"Reloading from %@ without a collection view.", sectionController);
+    IGAssert(collectionView != nil, @"Tried to reload the adapter from %@ without a collection view at indexes %@.", sectionController, indexes);
 
     if (indexes.count == 0) {
         return;
@@ -798,7 +798,7 @@
     IGParameterAssert(indexes != nil);
     IGParameterAssert(sectionController != nil);
     UICollectionView *collectionView = self.collectionView;
-    IGAssert(collectionView != nil, @"Inserting items from %@ without a collection view.", sectionController);
+    IGAssert(collectionView != nil, @"Inserting items from %@ without a collection view at indexes %@.", sectionController, indexes);
 
     if (indexes.count == 0) {
         return;
@@ -813,7 +813,7 @@
     IGParameterAssert(indexes != nil);
     IGParameterAssert(sectionController != nil);
     UICollectionView *collectionView = self.collectionView;
-    IGAssert(collectionView != nil, @"Deleting items from %@ without a collection view.", sectionController);
+    IGAssert(collectionView != nil, @"Deleting items from %@ without a collection view at indexes %@.", sectionController, indexes);
 
     if (indexes.count == 0) {
         return;