Test exercise GHA (#336)

[no important files changed]

Author: BNAndras

.github/workflows/test.yml

@@ -0,0 +1,20 @@
+name: Test Exercises
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: macos-15
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+
+      - name: Test Exercises
+        run: |
+          set -o pipefail
+          xcodebuild test \
+            -project xcodeProject/ObjectiveC.xcodeproj \
+            -scheme xobjectivecTest \
+            -destination 'platform=macOS' \
+            | xcpretty

.travis.yml

@@ -14,29 +14,10 @@ @interface HelloWorldTest : XCTestCase
 
 @implementation HelloWorldTest
 
-- (HelloWorld *)helloWorld {
-  return [[HelloWorld alloc] init];
-}
-
-- (void)testNoName {
-  NSString *input = nil;
-  NSString *expected = @"Hello, World!";
-  NSString *result = [[self helloWorld] hello:input];
-  XCTAssertEqualObjects(expected, result);
-}
-
-- (void)testSampleName {
-  NSString *input = @"Alice";
-  NSString *expected = @"Hello, Alice!";
-  NSString *result = [[self helloWorld] hello:input];
-  XCTAssertEqualObjects(expected, result);
-}
-  
-- (void)testOtherSampleName {
-  NSString *input = @"Bob";
-  NSString *expected = @"Hello, Bob!";
-  NSString *result = [[self helloWorld] hello:input];
-  XCTAssertEqualObjects(expected, result);
+- (void)testHello {
+    NSString *expected = @"Hello, World!";
+    NSString *result = [[[HelloWorld alloc] init] hello];
+    XCTAssertEqualObjects(expected, result);
 }
 
 @end