Function coverageHeader
Generate the coverage page header
Example
Check variables for the coverage header
CoveredFile coveredFile;
coveredFile .moduleName = "module.name";
coveredFile .coveragePercent = 30;
coveredFile .path = "a/b";
coveredFile .lines = [ LineCoverage(" 0| not code"), LineCoverage(" 1| some code") ];
auto header = coverageHeader(coveredFile);
header .should .contain(`<h1>module.name`);
header .should .contain(`1/2`);
header .should .contain(`30%`);
header .should .contain(`<li>a</li><li>b</li>`);