Allow multiple var declarations per scope

The Crockford style guide explicitly uses multiple var declarations as
an example.  However, the JSCS Crockford style config explicitly
disallows multiple var declarations.  I'll revisit in the future if it
turns out this is required.
/*
 * Copyright (c) 2016 Steven Soloff
 *
 * This is free software: you can redistribute it and/or modify it under the
 * terms of the MIT License (https://opensource.org/licenses/MIT).
 * This software comes with ABSOLUTELY NO WARRANTY.
 */

'use strict'

const linting = require('./support/test-util').linting
const source = require('./support/test-util').source

describe('Linting variable declarations', () => {
  it('should report a violation when var declarations are not first in scope', () => {
    const text = source([
      'while (1) {',
      '    var foo = 1;',
      '    foo;',
      '}'
    ])
    expect(linting(text)).toReportViolationForRule('vars-on-top')
  })

  it('should not report a violation when var declarations are first in scope', () => {
    const text = source([
      'var foo = 1;',
      'while (1) {',
      '    foo;',
      '}'
    ])
    expect(linting(text)).toNotReportViolation()
  })

  it('should not report a violation when multiple var declarations are used in same scope', () => {
    const text = source([
      'var foo = 1;',
      'var bar = 2;',
      'while (foo) {',
      '    bar;',
      '}'
    ])
    expect(linting(text)).toNotReportViolation()
  })
})

/*
 * Copyright (c) 2016 Steven Soloff
 *
 * This is free software: you can redistribute it and/or modify it under the
 * terms of the MIT License (https://opensource.org/licenses/MIT).
 * This software comes with ABSOLUTELY NO WARRANTY.
 */

'use strict'

const linting = require('./support/test-util').linting
const source = require('./support/test-util').source

describe('Linting variable declarations', () => {
  it('should report a violation when var declarations are not first in function scope', () => {
    const text = source([
      'while (1) {',
      '    var foo = 1;',
      '    foo;',
      '}'
    ])
    expect(linting(text)).toReportViolationForRule('vars-on-top')
  })

  it('should not report a violation when var declarations are first in function scope', () => {
    const text = source([
      'var foo = 1;',
      'while (1) {',
      '    foo;',
      '}'
    ])
    expect(linting(text)).toNotReportViolation()
  })
})
