Extracting Coverage Data programmatically
Using XPath with Clover's XML reports
Clover's XML reports provide detailed coverage data in a format that is easy to access programmatically using XPath. XML coverage reports can be generated by the <clover-report> or <clover-historypoint> Ant tasks. The following example XPath expressions show how to extract data from a Clover XML coverage report:
/coverage/project/metrics[@statements]
The above statement extracts the total number of statements in the project.
/coverage/project/metrics[@coveredstatements]
The above extracts the total number of covered statements in the project.
/coverage/project/package[name='com.foo.bar']/metrics[@statements]
The above extracts the total number of statements in the package com.foo.bar.
/coverage/project/package[name='com.foo.bar']/metrics[@coveredstatements]
The above extracts the total number of covered statements in the package com.foo.bar.
The following code example demonstrates simple extraction of coverage data from a Clover XML report:
import javax.xml.xpath.*;
XPath xpath = XPathFactory.newInstance().newXPath();
String stmtExpr = "/coverage/project/metrics[@statements]";
String coveredStmtExpr = "/coverage/project/metrics[@coveredstatements]";
InputSource inputSource = new InputSource("coverage.xml");
Double projectStatements = (Double) xpath.evaluate(expression, inputSource,
XPathConstants.NUMBER);
Double projectCoveredStatements = (Double) xpath.evaluate(expression, inputSource,
XPathConstants.NUMBER);
Last modified on Jan 14, 2017
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