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var assert = require('assert');
var R = require('../source');var eq = require('./shared/eq');

describe('dropLast', function() {  it('skips the last `n` elements from a list, returning the remainder', function() {    eq(R.dropLast(3, ['a', 'b', 'c', 'd', 'e', 'f', 'g']), ['a', 'b', 'c', 'd']);  });
  it('returns an empty array if `n` is too large', function() {    eq(R.dropLast(20, ['a', 'b', 'c', 'd', 'e', 'f', 'g']), []);  });
  it('returns an equivalent list if `n` is <= 0', function() {    eq(R.dropLast(0, [1, 2, 3]), [1, 2, 3]);    eq(R.dropLast(-1, [1, 2, 3]), [1, 2, 3]);    eq(R.dropLast(-Infinity, [1, 2, 3]), [1, 2, 3]);  });
  it('never returns the input array', function() {    var xs = [1, 2, 3];
    assert.notStrictEqual(R.dropLast(0, xs), xs);    assert.notStrictEqual(R.dropLast(-1, xs), xs);  });
  it('can operate on strings', function() {    eq(R.dropLast(3, 'Ramda'), 'Ra');  });
  it('can act as a transducer', function() {    var dropLast2 = R.dropLast(2);    assert.deepEqual(R.into([], dropLast2, [1, 3, 5, 7, 9, 1, 2]), [1, 3, 5, 7, 9]);    assert.deepEqual(R.into([], dropLast2, [1]), []);  });
});