"""Tests for the Python API for composing notebook elements"""

from nbformat.v4.nbbase import (
    NotebookNode,
    nbformat,
    new_code_cell,
    new_markdown_cell,
    new_notebook,
    new_output,
    new_raw_cell,
)


def test_empty_notebook():
    nb = new_notebook()
    assert nb.cells == []
    assert nb.metadata == NotebookNode()
    assert nb.nbformat == nbformat


def test_empty_markdown_cell():
    cell = new_markdown_cell()
    assert cell.cell_type == "markdown"
    assert cell.source == ""


def test_markdown_cell():
    cell = new_markdown_cell("* Søme markdown")
    assert cell.source == "* Søme markdown"


def test_empty_raw_cell():
    cell = new_raw_cell()
    assert cell.cell_type == "raw"
    assert cell.source == ""


def test_raw_cell():
    cell = new_raw_cell("hi")
    assert cell.source == "hi"


def test_empty_code_cell():
    cell = new_code_cell("hi")
    assert cell.cell_type == "code"
    assert cell.source == "hi"


def test_empty_display_data():
    output = new_output("display_data")
    assert output.output_type == "display_data"


def test_empty_stream():
    output = new_output("stream")
    assert output.output_type == "stream"
    assert output.name == "stdout"
    assert output.text == ""


def test_empty_execute_result():
    output = new_output("execute_result", execution_count=1)
    assert output.output_type == "execute_result"


mimebundle = {
    "text/plain": "some text",
    "application/json": {"key": "value"},
    "image/svg+xml": "ABCDEF",
    "application/octet-stream": "ABC-123",
    "application/vnd.foo+bar": "Some other stuff",
}


def test_display_data():
    output = new_output("display_data", mimebundle)
    for key, expected in mimebundle.items():
        assert output.data[key] == expected


def test_execute_result():
    output = new_output("execute_result", mimebundle, execution_count=10)
    assert output.execution_count == 10
    for key, expected in mimebundle.items():
        assert output.data[key] == expected


def test_error():
    o = new_output(
        output_type="error",
        ename="NameError",
        evalue="Name not found",
        traceback=["frame 0", "frame 1", "frame 2"],
    )
    assert o.output_type == "error"
    assert o.ename == "NameError"
    assert o.evalue == "Name not found"
    assert o.traceback == ["frame 0", "frame 1", "frame 2"]


def test_code_cell_with_outputs():
    cell = new_code_cell(
        execution_count=10,
        outputs=[
            new_output("display_data", mimebundle),
            new_output("stream", text="hello"),
            new_output("execute_result", mimebundle, execution_count=10),
        ],
    )
    assert cell.execution_count == 10
    assert len(cell.outputs) == 3
    er = cell.outputs[-1]
    assert er.execution_count == 10
    assert er["output_type"] == "execute_result"


def test_stream():
    output = new_output("stream", name="stderr", text="hello there")
    assert output.name == "stderr"
    assert output.text == "hello there"