init2

Author: AkshatG6

GoogleSignIn/Tests/Unit/GIDTokenClaimsInternalOptionsTest.m

@@ -0,0 +1,92 @@
+//
+//  GIDTokenClaimsInternalOptionsTest.h
+//  GoogleSignIn
+//
+//  Created by Akshat Gandhi on 9/5/25.
+//
+
+
+#import <XCTest/XCTest.h>
+#import "GoogleSignIn/Sources/GIDTokenClaimsInternalOptions.h"
+#import "GoogleSignIn/Sources/Public/GoogleSignIn/GIDTokenClaim.h"
+
+@import OCMock;
+
+static NSString *const kEssentialAuthTimeExpectedJSON = @"{\"id_token\":{\"auth_time\":{\"essential\":true}}}";
+static NSString *const kNonEssentialAuthTimeExpectedJSON = @"{\"id_token\":{\"auth_time\":null}}";
+
+
+@interface GIDTokenClaimsInternalOptionsTest : XCTestCase
+@end
+
+@implementation GIDTokenClaimsInternalOptionsTest
+
+#pragma mark - Input Validation Tests
+
+- (void)testValidatedJSONStringForClaims_WithNilInput_ShouldReturnNil {
+  XCTAssertNil([GIDTokenClaimsInternalOptions validatedJSONStringForClaims:nil error:nil]);
+}
+
+- (void)testValidatedJSONStringForClaims_WithEmptyInput_ShouldReturnNil {
+  XCTAssertNil([GIDTokenClaimsInternalOptions validatedJSONStringForClaims:[NSSet set] error:nil]);
+}
+
+#pragma mark - Correct Formatting Tests
+
+- (void)testValidatedJSONStringForClaims_WithNonEssentialClaim_IsCorrectlyFormatted {
+  NSSet *claims = [NSSet setWithObject:[GIDTokenClaim authTimeClaim]];
+
+  NSError *error = nil;
+  NSString *result = [GIDTokenClaimsInternalOptions validatedJSONStringForClaims:claims error:&error];
+
+  XCTAssertNil(error);
+  XCTAssertEqualObjects(result, kNonEssentialAuthTimeExpectedJSON);
+}
+
+- (void)testValidatedJSONStringForClaims_WithEssentialClaim_IsCorrectlyFormatted {
+  NSSet *claims = [NSSet setWithObject:[GIDTokenClaim essentialAuthTimeClaim]];
+
+  NSError *error = nil;
+  NSString *result = [GIDTokenClaimsInternalOptions validatedJSONStringForClaims:claims error:&error];
+
+  XCTAssertNil(error);
+  XCTAssertEqualObjects(result, kEssentialAuthTimeExpectedJSON);
+}
+
+#pragma mark - Client Error Handling Tests
+
+- (void)testValidatedJSONStringForClaims_WithConflictingClaims_ReturnsNilAndPopulatesError {
+  NSSet *claims = [NSSet setWithObjects:[GIDTokenClaim authTimeClaim],
+                                        [GIDTokenClaim essentialAuthTimeClaim],
+                                        nil];
+  NSError *error = nil;
+
+  NSString *result = [GIDTokenClaimsInternalOptions validatedJSONStringForClaims:claims error:&error];
+
+  XCTAssertNil(result, @"Method should return nil for conflicting claims.");
+  XCTAssertNotNil(error, @"An error object should be populated.");
+  XCTAssertEqualObjects(error.domain, kGIDSignInErrorDomain, @"Error domain should be correct.");
+  XCTAssertEqual(error.code, kGIDSignInErrorCodeAmbiguousClaims, @"Error code should be for ambiguous claims.");
+}
+
+- (void)testValidatedJSONStringForClaims_WhenSerializationFails_ReturnsNilAndError {
+  NSSet *claims = [NSSet setWithObject:[GIDTokenClaim authTimeClaim]];
+  NSError *fakeJSONError = [NSError errorWithDomain:@"com.fake.json" code:-999 userInfo:nil];
+  id mockSerialization = OCMClassMock([NSJSONSerialization class]);
+
+  OCMStub([mockSerialization dataWithJSONObject:OCMOCK_ANY
+                                         options:0
+                                           error:[OCMArg setTo:fakeJSONError]]).andReturn(nil);
+
+  NSError *actualError = nil;
+  NSString *result =
+      [GIDTokenClaimsInternalOptions validatedJSONStringForClaims:claims error:&actualError];
+
+  XCTAssertNil(result, @"The result should be nil when JSON serialization fails.");
+  XCTAssertEqualObjects(actualError, fakeJSONError,
+                        @"The error from serialization should be passed back to the caller.");
+
+  [mockSerialization stopMocking];
+}
+
+@end