C++ unit testing on Linux has always been tricky, especially when mocking static methods or faking legacy behavior. But with Isolator++ v5.4, Typemock makes it faster, more reliable, and fully GCC-compatible.
Whether you’re working with static methods, global functions, or tightly coupled legacy code, the new version simplifies testing for modern C++14 codebases.
🆕 What’s New in Isolator++ v5.4?
✅ Native Support for C++ Unit Testing on Linux
The new API now officially support GCC 5.4+ and C++14. This means you can use Typemock’s powerful mocking features on your Linux-based C++ unit tests using the language-based API and is easier to write tests.
For details on C++14 compatibility in GCC 5.4, check the GCC 5.4 release notes.
🔎 Better Diagnostics for Virtual Methods
No more cryptic errors. Isolator++ v5.4 gives clear feedback when mocking fails, saving you hours of confusion.
🌍 Improved Function Lookup
Global and static functions are now easier to locate and fake—even those with pointer arguments or overloading.
❌ Deprecated .From("xxx.dll")
You no longer need to manually load libraries. Symbol resolution is now automatic, making test setup smoother and faster.
🪲 Windows Fixes Too!
We’ve fixed a crash in the WillDoInstead API when mocking functions with 4+ pointer parameters on Windows.
💡 Example: C++ Unit Testing with Isolator++
Mocking Static Methods (Now Works on GCC/Linux!)
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#include "Isolator5.h"<br><br>TEST(MyTest, ShouldMockStaticMethod) {<br> Isolate a;<br> a.CallTo(SomeService::GetStatus()).WillReturn(200);<br><br> int result = MyComponent().Process();<br> ASSERT_EQ(result, 200);<br>}<br> |
Faking Free Functions on Linux
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int ExternalApiCall() { return 5; }<br><br>TEST(ApiTest, ShouldFakeFreeFunction) {<br> Isolate a;<br> a.CallTo(ExternalApiCall).WillReturn(42);<br><br> int result = Run(); // internally calls ExternalApiCall<br> ASSERT_EQ(result, 42);<br>}<br> |
🧠 Why It Matters
C++ unit testing on Linux often feels like navigating a minefield, especially with tightly coupled code. Isolator++ 5.4 helps you:
- Test legacy code without rewriting it
- Mock static methods, private methods, free functions, and globals
- Invoke private method and access private members and data
- Integrate easily with CI/CD pipelines on Linux
And now, your cross-platform builds don’t have to compromise on test quality.
🔗 Related Resources
✅ Ready to Try It?
C++ unit testing on Linux doesn’t have to be painful.
Download Isolator++ v5.4 today and bring real mocking power to your GCC projects.
