[Catalog] Revert "Snapshot Testing Proof of Concept" (#5883)

Reverts material-components/material-components-ios#5754

Travis CI on `develop` branch testing has failed since snapshot testing was introduced. Rolling it back.

https://travis-ci.org/material-components/material-components-ios/builds

.gitattributes

@@ -1 +0,0 @@
-snapshot_test_goldens/**/*.png filter=lfs diff=lfs merge=lfs -text

.kokoro

@@ -229,11 +229,6 @@ run_cocoapods() {
 
     gem install xcpretty cocoapods --no-rdoc --no-ri --no-document --quiet
     pod --version
-
-    # Install git-lfs
-    brew install git-lfs
-    git lfs install
-    git lfs pull
   fi
 
   if [ "$DEPENDENCY_SYSTEM" = "cocoapods" ]; then

MaterialComponents.podspec

@@ -356,12 +356,6 @@ Pod::Spec.new do |mdc|
         unit_tests.source_files = "components/#{component.base_name}/tests/unit/*.{h,m,swift}", "components/#{component.base_name}/tests/unit/supplemental/*.{h,m,swift}"
         unit_tests.resources = "components/#{component.base_name}/tests/unit/resources/*"
       end
-      tests.test_spec 'snapshot' do |snapshot_tests|
-        snapshot_tests.requires_app_host = true
-        snapshot_tests.source_files = "components/#{component.base_name}/tests/snapshot/*.{h,m,swift}", "components/#{component.base_name}/tests/snapshot/supplemental/*.{h,m,swift}"
-        snapshot_tests.resources = "components/#{component.base_name}/tests/snapshot/resources/*"
-        snapshot_tests.dependency 'iOSSnapshotTestCase', '2.2.0'
-      end
     end
   end
 

catalog/MDCCatalog.xcodeproj/xcshareddata/xcschemes/MDCCatalog.xcscheme

@@ -33,7 +33,7 @@
             skipped = "NO">
             <BuildableReference
                BuildableIdentifier = "primary"
-               BlueprintIdentifier = "C513816E6BA200E1B2FC1E985E620012"
+               BlueprintIdentifier = "153B950E9F5C9E9E4BE2D402CB52E43A"
                BuildableName = "MaterialComponents-Unit-Tests.xctest"
                BlueprintName = "MaterialComponents-Unit-Tests"
                ReferencedContainer = "container:Pods/Pods.xcodeproj">
@@ -43,7 +43,7 @@
             skipped = "NO">
             <BuildableReference
                BuildableIdentifier = "primary"
-               BlueprintIdentifier = "3171F7594A536C448D38F6611EB2A7B7"
+               BlueprintIdentifier = "47FB08CD9CD5B00DEC8D9A84BCFD9232"
                BuildableName = "MaterialComponentsAlpha-Unit-Tests.xctest"
                BlueprintName = "MaterialComponentsAlpha-Unit-Tests"
                ReferencedContainer = "container:Pods/Pods.xcodeproj">
@@ -61,8 +61,8 @@
       </MacroExpansion>
       <EnvironmentVariables>
          <EnvironmentVariable
-            key = "FB_REFERENCE_IMAGE_DIR"
-            value = "$(SOURCE_ROOT)/../snapshot_test_goldens/goldens"
+            key = "DYLD_INSERT_LIBRARIES"
+            value = "@executable_path/EarlGrey.framework/EarlGrey"
             isEnabled = "YES">
          </EnvironmentVariable>
       </EnvironmentVariables>

catalog/MDCDragons.xcodeproj/xcshareddata/xcschemes/MDCDragons.xcscheme

@@ -26,13 +26,13 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "NO">
+      shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
          <TestableReference
             skipped = "NO">
             <BuildableReference
                BuildableIdentifier = "primary"
-               BlueprintIdentifier = "C513816E6BA200E1B2FC1E985E620012"
+               BlueprintIdentifier = "153B950E9F5C9E9E4BE2D402CB52E43A"
                BuildableName = "MaterialComponents-Unit-Tests.xctest"
                BlueprintName = "MaterialComponents-Unit-Tests"
                ReferencedContainer = "container:Pods/Pods.xcodeproj">
@@ -42,7 +42,7 @@
             skipped = "NO">
             <BuildableReference
                BuildableIdentifier = "primary"
-               BlueprintIdentifier = "3171F7594A536C448D38F6611EB2A7B7"
+               BlueprintIdentifier = "47FB08CD9CD5B00DEC8D9A84BCFD9232"
                BuildableName = "MaterialComponentsAlpha-Unit-Tests.xctest"
                BlueprintName = "MaterialComponentsAlpha-Unit-Tests"
                ReferencedContainer = "container:Pods/Pods.xcodeproj">
@@ -58,13 +58,6 @@
             ReferencedContainer = "container:MDCDragons.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
-      <EnvironmentVariables>
-         <EnvironmentVariable
-            key = "FB_REFERENCE_IMAGE_DIR"
-            value = "$(SOURCE_ROOT)/../snapshot_test_goldens/goldens"
-            isEnabled = "YES">
-         </EnvironmentVariable>
-      </EnvironmentVariables>
       <AdditionalOptions>
       </AdditionalOptions>
    </TestAction>

catalog/Podfile

@@ -13,7 +13,6 @@ target "MDCCatalog" do
     'BottomNavigation/tests/unit',
     'BottomSheet/tests/unit',
     'Buttons/tests/unit',
-    'Cards/tests/snapshot',
     'Cards/tests/unit',
     'Chips/tests/unit',
     'CollectionCells/tests/unit',

components/Cards/tests/snapshot/MDCCardSnapshotTests.m

@@ -1,60 +0,0 @@
-// Copyright 2018-present the Material Components for iOS authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <FBSnapshotTestCase/FBSnapshotTestCase.h>
-
-#import "MaterialCards.h"
-
-@interface MDCCardSnapshotTests : FBSnapshotTestCase
-
-@end
-
-@implementation MDCCardSnapshotTests
-
-- (void)testDefaultCard {
-  // Uncomment below to recreate the golden
-  //  self.recordMode = YES;
-
-  UIView *backgroundView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 70, 70)];
-  backgroundView.backgroundColor = [UIColor colorWithWhite:0.8 alpha:1];
-  MDCCard *card = [[MDCCard alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
-  [backgroundView addSubview:card];
-  card.center = backgroundView.center;
-
-  FBSnapshotVerifyView([self imageViewSnapshotOfView:backgroundView], nil);
-}
-
-// TODO: To be extracted into test helper method
-- (UIImageView *)imageViewSnapshotOfView:(UIView *)view {
-  UIImage *result = nil;
-
-  if (@available(iOS 10, *)) {
-    UIGraphicsImageRenderer *renderer =
-        [[UIGraphicsImageRenderer alloc] initWithSize:view.frame.size];
-    result = [renderer imageWithActions:^(UIGraphicsImageRendererContext *_Nonnull context) {
-      BOOL success = [view drawViewHierarchyInRect:view.bounds afterScreenUpdates:YES];
-      NSAssert(success, @"View %@ must draw correctly", view);
-    }];
-
-    NSAssert(result != nil, @"View %@ must render image", view);
-  } else {
-    NSAssert(NO, @"This test requires iOS 10.0 or later.");
-  }
-
-  UIImageView *imageView = [[UIImageView alloc] initWithFrame:view.frame];
-  imageView.image = result;
-  return imageView;
-}
-
-@end

scripts/test_all

@@ -50,7 +50,14 @@ did_any_fail=false
 
 xcodebuid_test \
   -workspace "$ROOT_DIR/catalog/MDCCatalog.xcworkspace" \
-  -scheme "MDCCatalog"
+  -scheme "MaterialComponents-Unit-Tests"
+if [ $? -ne 0 ]; then
+  did_any_fail=true
+fi
+
+xcodebuid_test \
+  -workspace "$ROOT_DIR/catalog/MDCCatalog.xcworkspace" \
+  -scheme "MaterialComponentsAlpha-Unit-Tests"
 if [ $? -ne 0 ]; then
   did_any_fail=true
 fi

snapshot_test_goldens/goldens_64/MDCCardSnapshotTests/testDefaultCard@2x.png

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:96d48d51f415dc94427e49a361cf68cdadc86d0e00a6706894a7f82b5d13b086
-size 1896