Fix tests

.github/workflows/ci.yml

@@ -70,6 +70,13 @@ jobs:
           CALCULATOR: ${{ matrix.calculator }}
         if: ${{ matrix.php-version == '8.0' }}
 
+      - name: Run PHPUnit with bcscale()
+        run: vendor/bin/phpunit
+        env:
+          CALCULATOR: BCMath
+          BCMATH_DEFAULT_SCALE: 8
+        if: ${{ matrix.calculator == 'BCMath' }}
+
       - name: Upload coverage report to Coveralls
         run: vendor/bin/php-coveralls --coverage_clover=build/logs/clover.xml -v
         env:

phpunit.php

@@ -42,3 +42,10 @@ function getCalculatorImplementation()
 }
 
 Calculator::set(getCalculatorImplementation());
+
+$scale = \getenv('BCMATH_DEFAULT_SCALE');
+
+if ($scale !== false) {
+    echo "Using bcscale($scale)", PHP_EOL;
+    \bcscale((int) $scale);
+}

tests/BigDecimalTest.php

@@ -10,7 +10,6 @@
 use Brick\Math\Exception\NegativeNumberException;
 use Brick\Math\Exception\NumberFormatException;
 use Brick\Math\Exception\RoundingNecessaryException;
-use Brick\Math\Internal\Calculator;
 use Brick\Math\RoundingMode;
 
 /**
@@ -848,22 +847,6 @@ public function testExactlyDividedByZero() : void
         BigDecimal::of(1)->exactlyDividedBy(0);
     }
 
-    public function testExactlyDividedByWithNonZeroBcMathDefaultScale(): void
-    {
-        if (! Calculator::get() instanceof Calculator\BcMathCalculator) {
-            self::markTestSkipped('This test targets the BCMath calculator only.');
-        }
-
-        $previousScale = bcscale();
-        bcscale(8);
-
-        try {
-            self::assertSame('0.1', (string) BigDecimal::of(1)->exactlyDividedBy(10));
-        } finally {
-            bcscale($previousScale);
-        }
-    }
-
     /**
      * @dataProvider providerDividedByWithRoundingNecessaryThrowsException
      *