postcss-value-parser/test/stringify.js at d383e7f2e690a08ddf906a05eaa44a11e9b342f2 · postcss/postcss-value-parser · GitHub

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var test = require("tape");
var parse = require("../lib/parse");
var stringify = require("../lib/stringify");

var tests = [
  {
    message: "Should correctly add quotes",
    fixture:
      "bold italic 12px/3 'Open Sans', Arial, \"Helvetica Neue\", sans-serif"
  },
  {
    message: "Should not close unclosed strings",
    fixture: '" 12,  54, 65 '
  },
  {
    message: "Should correctly add brackets",
    fixture: " rgba( 12,  54, 65) "
  },
  {
    message: "Should not close unclosed functions",
    fixture: " rgba( 12,  54, 65 "
  },
  {
    message: "Should correctly process advanced gradients",
    fixture:
      "background-image:linear-gradient(45deg,transparent 25%,hsla(0,0%,100%,.2) 25%,hsla(0,0%,100%,.2) 75%,transparent 75%,transparent 25%,hsla(0,0%,100%,.2) 75%,transparent 75%,transparent),linear-gradient(45deg,transparent 25%,hsla(0,0%,100%,.2))"
  },
  {
    message: "Should correctly add comments",
    fixture: "/!*comment*!/ 1px /!* unclosed "
  },
  {
    message: "Should correctly process comments inside functions",
    fixture:
      "/!*before*!/ rgb( /!*red component*!/ 12,  54 /!*green component*!/, /!* blue *!/ 65)/!* after *!/ "
  },
  {
    message: "Should correctly process empty url",
    fixture: "url()"
  },
  {
    message: "Should correctly process empty url with space",
    fixture: "url( )"
  },
  {
    message: "Should correctly process empty url with spaces",
    fixture: "url(   )"
  },
  {
    message: "Should correctly process empty url with tab",
    fixture: "url(\t)"
  },
  {
    message: "Should correctly process empty url with newline (LF)",
    fixture: "url(\n)"
  },
  {
    message: "Should correctly process interpolation",
    fixture: "#{url(\n)}",
    options: {
      interpolationPrefix: "#"
    }
  },
  {
    message: "Should correctly process empty url with newline (LF)",
    fixture: "url(\n\n\n)"
  },
  {
    message: "Should correctly process empty url with multiple newlines (CRLF)",
    fixture: "url(\r\n)"
  },
  {
    message: "Should correctly process empty url with multiple newlines (CRLF)",
    fixture: "url(\r\n\r\n\r\n)"
  },
  {
    message: "Should correctly process empty url whitespace characters",
    fixture: "url(  \n \t  \n  )"
  },
  {
    message: "Should correctly process unicode-range (single codepoint)",
    fixture: "U+26"
  },
  {
    message: "Should correctly process unicode-range (codepoint range)",
    fixture: "U+0025-00FF"
  },
  {
    message: "Should correctly process unicode-range (wildcard range)",
    fixture: "U+4??"
  },
  {
    message: "Should correctly process unicode-range (multiple values)",
    fixture: "U+0025-00FF, U+4??"
  }
];

test("Stringify", function(t) {
  t.plan(tests.length + 4);

  tests.forEach(function(opts) {
    t.equal(
      stringify(parse(opts.fixture, opts.options)),
      opts.fixture,
      opts.message
    );
  });

  var tokens = parse(" rgba(12,  54, 65 ) ");

  t.equal(
    stringify(tokens, function(node) {
      if (node.type === "function") {
        return (
          node.value +
          "[" +
          [node.nodes[0].value, node.nodes[2].value, node.nodes[4].value].join(
            ","
          ) +
          "]"
        );
      }
    }),
    " rgba[12,54,65] "
  );

  t.equal(
    stringify(tokens[1], function(node) {
      if (node.type === "function") {
        return (
          node.value +
          "[" +
          [node.nodes[0].value, node.nodes[2].value, node.nodes[4].value].join(
            ","
          ) +
          "]"
        );
      }
    }),
    "rgba[12,54,65]"
  );

  tokens[1].type = "word";
  t.equal(stringify(tokens), " rgba ", "Shouldn't process nodes of work type");

  t.equal(
    stringify(parse("calc(1px + var(--bar))"), function(node) {
      if (node.type === "function" && node.value === "var") {
        return "10px";
      }
    }),
    "calc(1px + 10px)"
  );
});