TestRunner.mqh

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//|                                                      ProjectName |
//|                                      Copyright 2020, CompanyName |
//|                                       http://www.companyname.net |
//+------------------------------------------------------------------+
#property strict

/// Singleton used to keep track of tests
class TestRunner {
  public:
    static TestRunner* Current;

    int testCount;
    int testFailedCount;

    TestRunner()
        : testCount(0), testFailedCount(0) {
        Current = GetPointer(this);
    }

    ~TestRunner() {
        PrintFormat("Test run summary: %u / %u passed", testCount - testFailedCount, testCount);
        if (testFailedCount > 0) {
            Alert(testFailedCount, " test(s) failed");
        }
    };
};

TestRunner *TestRunner::Current = NULL;

/// Static method to be used in tests
void Assert(bool condition) {
    TestRunner *t = TestRunner::Current;
    t.testCount++;
    if (!condition) {
        t.testFailedCount++;
    }
};
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