ipython js merge test failures

gistfile1.txt

PASS Cell 2 is splittable
PASS Cell 2 is mergeable
FAIL Merge cell 0 down: There are still 3 cells
#    type: assertEquals
#    file: /Users/parente/projects/ipython/IPython/html/tests/notebook/dualmode_merge.js:74
#    code: this.test.assertEquals(this.get_cells_length(), 3, 'Merge cell 0 down: There are still 3 cells');
#    subject: 4
#    expected: 3
FAIL Merge cell 1 up: There are still 3 cells
#    type: assertEquals
#    file: /Users/parente/projects/ipython/IPython/html/tests/notebook/dualmode_merge.js:89
#    code: this.test.assertEquals(this.get_cells_length(), 3, 'Merge cell 1 up: There are still 3 cells');
#    subject: 4
#    expected: 3
FAIL Split cell 1: There are still 3 cells
#    type: assertEquals
#    file: /Users/parente/projects/ipython/IPython/html/tests/notebook/dualmode_merge.js:102
#    code: this.test.assertEquals(this.get_cells_length(), 3, 'Split cell 1: There are still 3 cells');
#    subject: 4
#    expected: 3
FAIL Merge cell 1 down: There are still 3 cells
#    type: assertEquals
#    file: /Users/parente/projects/ipython/IPython/html/tests/notebook/dualmode_merge.js:114
#    code: this.test.assertEquals(this.get_cells_length(), 3, 'Merge cell 1 down: There are still 3 cells');
#    subject: 4
#    expected: 3
FAIL Merge cell 2 up: There are still 3 cells
#    type: assertEquals
#    file: /Users/parente/projects/ipython/IPython/html/tests/notebook/dualmode_merge.js:129
#    code: this.test.assertEquals(this.get_cells_length(), 3, 'Merge cell 2 up: There are still 3 cells');
#    subject: 4
#    expected: 3

Captured console.log:
    Default extension for cell metadata editing loaded.
    Raw Cell Format toolbar preset loaded.
    Slideshow extension for metadata editing loaded.
    Session: kernel_created (ebaf93a9-f71b-4cf7-96f4-06b9dc3cc85c)
    Starting WebSockets: ws://127.0.0.1:8888/api/kernels/b5182745-9787-48de-b95b-07732d446c96
    Kernel: kernel_connected (b5182745-9787-48de-b95b-07732d446c96)
    Kernel: kernel_starting (b5182745-9787-48de-b95b-07732d446c96)
    Kernel: kernel_ready (b5182745-9787-48de-b95b-07732d446c96)
    Session: kernel_killed (ebaf93a9-f71b-4cf7-96f4-06b9dc3cc85c)
Test file: /Users/parente/projects/ipython/IPython/html/tests/notebook/dualmode_movecell.js
PASS select 2; Cell 2 text is correct
PASS ctrl-k; Cell 1 text is correct
PASS ctrl-k; Cell 2 text is correct
PASS ctrl-k; keyboard and notebook modes match
PASS ctrl-k; cell 1 is the only cell selected
PASS ctrl-k; in command mode
PASS ctrl-k; all cells in command mode
PASS ctrl-k; no cell editors are focused while in command mode
PASS ctrl-j; Cell 1 text is correct
PASS ctrl-j; Cell 2 text is correct
PASS ctrl-j; keyboard and notebook modes match
PASS ctrl-j; cell 2 is the only cell selected
PASS ctrl-j; in command mode
PASS ctrl-j; all cells in command mode