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Validating Umbrella Header Symbol Exports in CocoaPods

This test suite validates the umbrella header functionality in CocoaPods, focusing on the proper export of version information and symbol visibility. It ensures correct implementation of Foundation exports and conditional compilation directives for Objective-C and C++ environments.

Test Coverage Overview

The test coverage encompasses essential CocoaPods umbrella header functionality, verifying proper symbol exports and version number handling.

Validates FOUNDATION_EXPORT macro definitions
Tests conditional compilation for Objective-C and C++
Verifies version number and string exports
Ensures UIKit import compatibility

Implementation Analysis

The testing approach implements cross-language compatibility checks between Objective-C and C++, ensuring proper symbol visibility and export declarations.

Key implementation patterns include:

Conditional preprocessor directives for different language contexts
Framework import handling for UIKit
Version number export declarations
External linkage specifications

Technical Details

Test environment: Objective-C and C++ compilation units
Framework dependencies: UIKit, Foundation
Configuration: Conditional compilation flags
Export macros: FOUNDATION_EXPORT definitions
Version tracking: VersionNumber and VersionString exports

Best Practices Demonstrated

The test suite exemplifies robust header file organization and cross-language compatibility practices.

Clear separation of language-specific implementations
Proper use of extern “C” declarations
Consistent version information exposure
Framework import guards
Standardized export macro definitions

cocoapods/cocoapods

spec/cocoapods-integration-specs/install_search_paths_inheritance/after/Pods/Target Support Files/Pods-Test/Pods-Test-umbrella.h

            
#ifdef __OBJC__
#import <UIKit/UIKit.h>
#else
#ifndef FOUNDATION_EXPORT
#if defined(__cplusplus)
#define FOUNDATION_EXPORT extern "C"
#else
#define FOUNDATION_EXPORT extern
#endif
#endif
#endif


FOUNDATION_EXPORT double Pods_TestVersionNumber;
FOUNDATION_EXPORT const unsigned char Pods_TestVersionString[];