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node_modules/istanbul-reports/lib/json-summary/index.js

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+/*
+ Copyright 2012-2015, Yahoo Inc.
+ Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
+ */
+'use strict';
+const { ReportBase } = require('istanbul-lib-report');
+
+class JsonSummaryReport extends ReportBase {
+    constructor(opts) {
+        super();
+
+        this.file = opts.file || 'coverage-summary.json';
+        this.contentWriter = null;
+        this.first = true;
+    }
+
+    onStart(root, context) {
+        this.contentWriter = context.writer.writeFile(this.file);
+        this.contentWriter.write('{');
+    }
+
+    writeSummary(filePath, sc) {
+        const cw = this.contentWriter;
+        if (this.first) {
+            this.first = false;
+        } else {
+            cw.write(',');
+        }
+        cw.write(JSON.stringify(filePath));
+        cw.write(': ');
+        cw.write(JSON.stringify(sc));
+        cw.println('');
+    }
+
+    onSummary(node) {
+        if (!node.isRoot()) {
+            return;
+        }
+        this.writeSummary('total', node.getCoverageSummary());
+    }
+
+    onDetail(node) {
+        this.writeSummary(
+            node.getFileCoverage().path,
+            node.getCoverageSummary()
+        );
+    }
+
+    onEnd() {
+        const cw = this.contentWriter;
+        cw.println('}');
+        cw.close();
+    }
+}
+
+module.exports = JsonSummaryReport;