import { math } from './math';
import { some } from '../../combinator';
import { input } from '../context';
import { inspect } from '../../debug.test';

describe('Unit: parser/inline/math', () => {
  describe('math', () => {
    const parser = some(math);

    it('invalid', () => {
      assert.deepStrictEqual(inspect(parser, input('')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$$$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$0 $')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$0\\ $')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$0\\\n$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-0, $-1')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-0 and $-1')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-0と$-1')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a $-b')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a\\ $-b')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$a $')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a `$`')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a ``$``')), undefined);
      // (``" + ``" + $-b") or (``"`` + "$-b")
      assert.deepStrictEqual(inspect(parser, input('$-a ``"``"$-b"')), undefined);
      // (``b`` + "c" + $-d) or (``b``"c" + $-d)
      assert.deepStrictEqual(inspect(parser, input('$-a ``b``"c"$-d')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a"$-b"')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a\\"$-b\\"')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$a"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a($-b)')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a\\($-b\\)')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a[$-b]')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a\\[$-b\\]')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$-a{$-b}')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$a{$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$a$b')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$a$b$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$ $')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$\\ $')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$ a$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$ a $')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$\n$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$\\\n$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$a\nb$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$a\\\nb$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$a\\$\nb$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$a\\$\\\nb$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$`$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$`a"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$`a"b$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``$"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``a$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``a"$0')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``a""b$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``a""$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$```a"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$```a""$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``\n"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``a\\$\nb"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``a\\$\\\nb"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``a"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``\\"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$``a``b"c"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$````""$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$"$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${}')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a} $')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a{b}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a}b}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a}b$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a}b{c}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a}{b}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${\\}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${\n}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${\\\n}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a\nb}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a\\\nb}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${$}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a\\$\nb}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${a\\$\\\nb}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('$\\begin$')), [['<span class="invalid" translate="no">$\\begin$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$\\huge0$')), [['<span class="invalid" translate="no">$\\huge0$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$\\Begin$')), [['<span class="invalid" translate="no">$\\Begin$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$\\begin{}$')), [['<span class="invalid" translate="no">$\\begin{}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${\\begin}$')), [['<span class="invalid" translate="no">${\\begin}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$http://host$')), undefined);
      assert.deepStrictEqual(inspect(parser, input('${http://host}$')), undefined);
      assert.deepStrictEqual(inspect(parser, input(' ${a}$')), undefined);
    });

    it('basic', () => {
      assert.deepStrictEqual(inspect(parser, input('$0$')), [['<span class="math" translate="no" data-src="$0$">$0$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$0$$')), [['<span class="math" translate="no" data-src="$0$">$0$</span>'], '$']);
      assert.deepStrictEqual(inspect(parser, input('$00$')), [['<span class="math" translate="no" data-src="$00$">$00$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$-0$')), [['<span class="math" translate="no" data-src="$-0$">$-0$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$0-1$')), [['<span class="math" translate="no" data-src="$0-1$">$0-1$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$0+1$')), [['<span class="math" translate="no" data-src="$0+1$">$0+1$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$0*1$')), [['<span class="math" translate="no" data-src="$0*1$">$0*1$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$0/1$')), [['<span class="math" translate="no" data-src="$0/1$">$0/1$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$a$')), [['<span class="math" translate="no" data-src="$a$">$a$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$a$$')), [['<span class="math" translate="no" data-src="$a$">$a$</span>'], '$']);
      assert.deepStrictEqual(inspect(parser, input('$a-b$')), [['<span class="math" translate="no" data-src="$a-b$">$a-b$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$a+b$')), [['<span class="math" translate="no" data-src="$a+b$">$a+b$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$a*b$')), [['<span class="math" translate="no" data-src="$a*b$">$a*b$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$a/b$')), [['<span class="math" translate="no" data-src="$a/b$">$a/b$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input(`$a'$`)), [[`<span class="math" translate="no" data-src="$a'$">$a'$</span>`], '']);
      assert.deepStrictEqual(inspect(parser, input(`$a''$`)), [[`<span class="math" translate="no" data-src="$a''$">$a''$</span>`], '']);
      assert.deepStrictEqual(inspect(parser, input('$a$[A](a)')), [['<span class="math" translate="no" data-src="$a$">$a$</span>'], '[A](a)']);
      assert.deepStrictEqual(inspect(parser, input('$A$')), [['<span class="math" translate="no" data-src="$A$">$A$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$-a$')), [['<span class="math" translate="no" data-src="$-a$">$-a$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$\\$$')), [['<span class="math" translate="no" data-src="$\\$$">$\\$$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$\\Pi$')), [['<span class="math" translate="no" data-src="$\\Pi$">$\\Pi$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$\\ 0$')), [['<span class="math" translate="no" data-src="$\\ 0$">$\\ 0$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$\\\\0$')), [['<span class="math" translate="no" data-src="$\\\\0$">$\\\\0$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$|1|$')), [['<span class="math" translate="no" data-src="$|1|$">$|1|$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$[0,1)$]')), [['<span class="math" translate="no" data-src="$[0,1)$">$[0,1)$</span>'], ']']);
      assert.deepStrictEqual(inspect(parser, input('$(0, 1]$)')), [['<span class="math" translate="no" data-src="$(0, 1]$">$(0, 1]$</span>'], ')']);
      assert.deepStrictEqual(inspect(parser, input('$\\{0,1\\}$')), [['<span class="math" translate="no" data-src="$\\{0,1\\}$">$\\{0,1\\}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$n=1$')), [['<span class="math" translate="no" data-src="$n=1$">$n=1$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$n<m$')), [['<span class="math" translate="no" data-src="$n&lt;m$">$n&lt;m$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$n>m$')), [['<span class="math" translate="no" data-src="$n&gt;m$">$n&gt;m$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$E = mc^2$')), [['<span class="math" translate="no" data-src="$E = mc^2$">$E = mc^2$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$f(x)$')), [['<span class="math" translate="no" data-src="$f(x)$">$f(x)$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$f: x \\to y$')), [['<span class="math" translate="no" data-src="$f: x \\to y$">$f: x \\to y$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$k$\\-space')), [['<span class="math" translate="no" data-src="$k$">$k$</span>'], '\\-space']);
      assert.deepStrictEqual(inspect(parser, input('$a{b}$')), [['<span class="math" translate="no" data-src="$a{b}$">$a{b}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('$a\\{$\\}')), [['<span class="math" translate="no" data-src="$a\\{$">$a\\{$</span>'], '\\}']);
      assert.deepStrictEqual(inspect(parser, input('${}$')), [['<span class="math" translate="no" data-src="${}$">${}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${ }$')), [['<span class="math" translate="no" data-src="${ }$">${ }$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${a}$')), [['<span class="math" translate="no" data-src="${a}$">${a}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${a}$$')), [['<span class="math" translate="no" data-src="${a}$">${a}$</span>'], '$']);
      assert.deepStrictEqual(inspect(parser, input('${a}$0')), [['<span class="math" translate="no" data-src="${a}$">${a}$</span>'], '0']);
      assert.deepStrictEqual(inspect(parser, input('${a}$b')), [['<span class="math" translate="no" data-src="${a}$">${a}$</span>'], 'b']);
      assert.deepStrictEqual(inspect(parser, input('${ab}$')), [['<span class="math" translate="no" data-src="${ab}$">${ab}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${a b}$')), [['<span class="math" translate="no" data-src="${a b}$">${a b}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${a }$')), [['<span class="math" translate="no" data-src="${a }$">${a }$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${ a}$')), [['<span class="math" translate="no" data-src="${ a}$">${ a}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${ a }$')), [['<span class="math" translate="no" data-src="${ a }$">${ a }$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${``"}$')), [['<span class="math" translate="no" data-src="${``&quot;}$">${``"}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${\\a}$')), [['<span class="math" translate="no" data-src="${\\a}$">${\\a}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${\\$}$')), [['<span class="math" translate="no" data-src="${\\$}$">${\\$}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${\\\\}$')), [['<span class="math" translate="no" data-src="${\\\\}$">${\\\\}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${あ}$')), [['<span class="math" translate="no" data-src="${あ}$">${あ}$</span>'], '']);
    });

    it('nest', () => {
      assert.deepStrictEqual(inspect(parser, input('${*a*}$')), [['<span class="math" translate="no" data-src="${*a*}$">${*a*}$</span>'], '']);
      assert.deepStrictEqual(inspect(parser, input('${<wbr>}$')), [['<span class="math" translate="no" data-src="${&lt;wbr&gt;}$">${&lt;wbr&gt;}$</span>'], '']);
    });

  });

});