feat: option to coverage

tests/Plugins/Coverage.php

@@ -0,0 +1,23 @@
+<?php
+
+use Pest\Plugins\Coverage;
+use Symfony\Component\Console\Output\NullOutput;
+
+test('compute comparable coverage', function (float $givenValue, float $expectedValue) {
+    $output = new NullOutput();
+
+    $plugin = new Coverage($output);
+
+    $comparableCoverage = (fn () => $this->computeComparableCoverage($givenValue))->call($plugin);
+
+    expect($comparableCoverage)->toBe($expectedValue);
+})->with([
+    [0, 0],
+    [0.5, 0.5],
+    [1.0, 1.0],
+    [32.51, 32.5],
+    [32.12312321312312, 32.1],
+    [32.53333333333333, 32.5],
+    [32.57777771232132, 32.5],
+    [100.0, 100.0],
+]);