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qwen/nodejs/node_modules/istanbul-reports/lib/text/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');
+
+const NAME_COL = 4;
+const PCT_COLS = 7;
+const MISSING_COL = 17;
+const TAB_SIZE = 1;
+const DELIM = ' | ';
+
+function padding(num, ch) {
+    let str = '';
+    let i;
+    ch = ch || ' ';
+    for (i = 0; i < num; i += 1) {
+        str += ch;
+    }
+    return str;
+}
+
+function fill(str, width, right, tabs) {
+    tabs = tabs || 0;
+    str = String(str);
+
+    const leadingSpaces = tabs * TAB_SIZE;
+    const remaining = width - leadingSpaces;
+    const leader = padding(leadingSpaces);
+    let fmtStr = '';
+
+    if (remaining > 0) {
+        const strlen = str.length;
+        let fillStr;
+
+        if (remaining >= strlen) {
+            fillStr = padding(remaining - strlen);
+        } else {
+            fillStr = '...';
+            const length = remaining - fillStr.length;
+
+            str = str.substring(strlen - length);
+            right = true;
+        }
+        fmtStr = right ? fillStr + str : str + fillStr;
+    }
+
+    return leader + fmtStr;
+}
+
+function formatName(name, maxCols, level) {
+    return fill(name, maxCols, false, level);
+}
+
+function formatPct(pct, width) {
+    return fill(pct, width || PCT_COLS, true, 0);
+}
+
+function nodeMissing(node) {
+    if (node.isSummary()) {
+        return '';
+    }
+
+    const metrics = node.getCoverageSummary();
+    const isEmpty = metrics.isEmpty();
+    const lines = isEmpty ? 0 : metrics.lines.pct;
+
+    let coveredLines;
+
+    const fileCoverage = node.getFileCoverage();
+    if (lines === 100) {
+        const branches = fileCoverage.getBranchCoverageByLine();
+        coveredLines = Object.entries(branches).map(([key, { coverage }]) => [
+            key,
+            coverage === 100
+        ]);
+    } else {
+        coveredLines = Object.entries(fileCoverage.getLineCoverage());
+    }
+
+    let newRange = true;
+    const ranges = coveredLines
+        .reduce((acum, [line, hit]) => {
+            if (hit) newRange = true;
+            else {
+                line = parseInt(line);
+                if (newRange) {
+                    acum.push([line]);
+                    newRange = false;
+                } else acum[acum.length - 1][1] = line;
+            }
+
+            return acum;
+        }, [])
+        .map(range => {
+            const { length } = range;
+
+            if (length === 1) return range[0];
+
+            return `${range[0]}-${range[1]}`;
+        });
+
+    return [].concat(...ranges).join(',');
+}
+
+function nodeName(node) {
+    return node.getRelativeName() || 'All files';
+}
+
+function depthFor(node) {
+    let ret = 0;
+    node = node.getParent();
+    while (node) {
+        ret += 1;
+        node = node.getParent();
+    }
+    return ret;
+}
+
+function nullDepthFor() {
+    return 0;
+}
+
+function findWidth(node, context, nodeExtractor, depthFor = nullDepthFor) {
+    let last = 0;
+    function compareWidth(node) {
+        last = Math.max(
+            last,
+            TAB_SIZE * depthFor(node) + nodeExtractor(node).length
+        );
+    }
+    const visitor = {
+        onSummary: compareWidth,
+        onDetail: compareWidth
+    };
+    node.visit(context.getVisitor(visitor));
+    return last;
+}
+
+function makeLine(nameWidth, missingWidth) {
+    const name = padding(nameWidth, '-');
+    const pct = padding(PCT_COLS, '-');
+    const elements = [];
+
+    elements.push(name);
+    elements.push(pct);
+    elements.push(padding(PCT_COLS + 1, '-'));
+    elements.push(pct);
+    elements.push(pct);
+    elements.push(padding(missingWidth, '-'));
+    return elements.join(DELIM.replace(/ /g, '-')) + '-';
+}
+
+function tableHeader(maxNameCols, missingWidth) {
+    const elements = [];
+    elements.push(formatName('File', maxNameCols, 0));
+    elements.push(formatPct('% Stmts'));
+    elements.push(formatPct('% Branch', PCT_COLS + 1));
+    elements.push(formatPct('% Funcs'));
+    elements.push(formatPct('% Lines'));
+    elements.push(formatName('Uncovered Line #s', missingWidth));
+    return elements.join(DELIM) + ' ';
+}
+
+function isFull(metrics) {
+    return (
+        metrics.statements.pct === 100 &&
+        metrics.branches.pct === 100 &&
+        metrics.functions.pct === 100 &&
+        metrics.lines.pct === 100
+    );
+}
+
+function tableRow(
+    node,
+    context,
+    colorizer,
+    maxNameCols,
+    level,
+    skipEmpty,
+    skipFull,
+    missingWidth
+) {
+    const name = nodeName(node);
+    const metrics = node.getCoverageSummary();
+    const isEmpty = metrics.isEmpty();
+    if (skipEmpty && isEmpty) {
+        return '';
+    }
+    if (skipFull && isFull(metrics)) {
+        return '';
+    }
+
+    const mm = {
+        statements: isEmpty ? 0 : metrics.statements.pct,
+        branches: isEmpty ? 0 : metrics.branches.pct,
+        functions: isEmpty ? 0 : metrics.functions.pct,
+        lines: isEmpty ? 0 : metrics.lines.pct
+    };
+    const colorize = isEmpty
+        ? function(str) {
+              return str;
+          }
+        : function(str, key) {
+              return colorizer(str, context.classForPercent(key, mm[key]));
+          };
+    const elements = [];
+
+    elements.push(colorize(formatName(name, maxNameCols, level), 'statements'));
+    elements.push(colorize(formatPct(mm.statements), 'statements'));
+    elements.push(colorize(formatPct(mm.branches, PCT_COLS + 1), 'branches'));
+    elements.push(colorize(formatPct(mm.functions), 'functions'));
+    elements.push(colorize(formatPct(mm.lines), 'lines'));
+    elements.push(
+        colorizer(
+            formatName(nodeMissing(node), missingWidth),
+            mm.lines === 100 ? 'medium' : 'low'
+        )
+    );
+
+    return elements.join(DELIM) + ' ';
+}
+
+class TextReport extends ReportBase {
+    constructor(opts) {
+        super(opts);
+
+        opts = opts || {};
+        const { maxCols } = opts;
+
+        this.file = opts.file || null;
+        this.maxCols = maxCols != null ? maxCols : process.stdout.columns || 80;
+        this.cw = null;
+        this.skipEmpty = opts.skipEmpty;
+        this.skipFull = opts.skipFull;
+    }
+
+    onStart(root, context) {
+        this.cw = context.writer.writeFile(this.file);
+        this.nameWidth = Math.max(
+            NAME_COL,
+            findWidth(root, context, nodeName, depthFor)
+        );
+        this.missingWidth = Math.max(
+            MISSING_COL,
+            findWidth(root, context, nodeMissing)
+        );
+
+        if (this.maxCols > 0) {
+            const pct_cols = DELIM.length + 4 * (PCT_COLS + DELIM.length) + 2;
+
+            const maxRemaining = this.maxCols - (pct_cols + MISSING_COL);
+            if (this.nameWidth > maxRemaining) {
+                this.nameWidth = maxRemaining;
+                this.missingWidth = MISSING_COL;
+            } else if (this.nameWidth < maxRemaining) {
+                const maxRemaining = this.maxCols - (this.nameWidth + pct_cols);
+                if (this.missingWidth > maxRemaining) {
+                    this.missingWidth = maxRemaining;
+                }
+            }
+        }
+        const line = makeLine(this.nameWidth, this.missingWidth);
+        this.cw.println(line);
+        this.cw.println(tableHeader(this.nameWidth, this.missingWidth));
+        this.cw.println(line);
+    }
+
+    onSummary(node, context) {
+        const nodeDepth = depthFor(node);
+        const row = tableRow(
+            node,
+            context,
+            this.cw.colorize.bind(this.cw),
+            this.nameWidth,
+            nodeDepth,
+            this.skipEmpty,
+            this.skipFull,
+            this.missingWidth
+        );
+        if (row) {
+            this.cw.println(row);
+        }
+    }
+
+    onDetail(node, context) {
+        return this.onSummary(node, context);
+    }
+
+    onEnd() {
+        this.cw.println(makeLine(this.nameWidth, this.missingWidth));
+        this.cw.close();
+    }
+}
+
+module.exports = TextReport;