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JMockit is a Java toolkit for automated developer testing.
It contains APIs for the creation of the objects to be tested, for mocking dependencies, and for faking external
APIs; JUnit (4 & 5) and TestNG test runners are supported.
It also contains an advanced code coverage tool.
/*
* Copyright (c) 2006 Rogério Liesenfeld
* This file is subject to the terms of the MIT license (see LICENSE.txt).
*/
package mockit.coverage;
import javax.annotation.*;
public final class CoveragePercentage
{
private CoveragePercentage() {}
public static int calculate(int coveredCount, int totalCount)
{
if (totalCount <= 0) {
return -1;
}
//noinspection NumericCastThatLosesPrecision
return (int) (100.0 * coveredCount / totalCount + 0.5);
}
@Nonnull
public static String percentageColor(int coveredCount, int totalCount)
{
if (coveredCount == 0) {
return "ff0000";
}
else if (coveredCount == totalCount) {
return "00ff00";
}
double percentage = 100.0 * coveredCount / totalCount;
//noinspection NumericCastThatLosesPrecision
int green = (int) (0xFF * percentage / 100 + 0.5);
int red = 0xFF - green;
StringBuilder color = new StringBuilder(6);
appendColorInHexadecimal(color, red);
appendColorInHexadecimal(color, green);
color.append("00");
return color.toString();
}
private static void appendColorInHexadecimal(@Nonnull StringBuilder colorInHexa, int rgb)
{
String hex = Integer.toHexString(rgb);
if (hex.length() == 1) {
colorInHexa.append('0');
}
colorInHexa.append(hex);
}
}