Files
dvc/tests/func/plots/test_plots.py
T
Ruslan Kuprieiev 09136f2378 plots: add plot markers to DVC files (#3807)
* run: add --plot/--plot-no-cache

Part of #3409

* plot: move show/diff to API

* plots: show marked plots by default

Involves some refactoring to make plots comply with the rest of the code
base.

* dvc.yaml: use top-level metrics and plots

* dvc.yaml: add support for plot template

* plots: add support for templates in dvc.yaml

* dvc.yaml: allow metrics/plots to have persist/cache

* plots: render single page by-default and introduce --show-json

* plot: use "working tree" instead of "workspace"

Just to sync this with the rest of the codebase. We should consider
renaming it to "workspace" everywhere, but for now I opt to not touch
it to not break something that depends on it.

* plots: rename -f|--file to -o|--out

Better corresponds to other commands like `import`.

* plots: use RepoTree and brancher instead of api

* stage: get rid of OutputParams

* tests: plots: add simple diff test

* plots: use `--targets` instead of `--datafile`

Makes it comply with `dvc metrics/params` CLI options.

* tests: unit: plots: add --show-json test

* stage: cleanup exception for format error

Based on feedback from the users.

* lockfile: use relpath in corruption error
2020-05-20 04:48:53 +03:00

496 lines
16 KiB
Python

import csv
import json
import logging
import os
import shutil
from collections import OrderedDict
import pytest
import yaml
from funcy import first
from dvc.repo.plots.data import (
NoMetricInHistoryError,
PlotData,
PlotMetricTypeError,
)
from dvc.repo.plots.show import NoDataOrTemplateProvided
from dvc.repo.plots.template import (
NoDataForTemplateError,
NoFieldInDataError,
TemplateNotFoundError,
)
def _remove_whitespace(value):
return value.replace(" ", "").replace("\n", "")
def _run_with(tmp_dir, commit=None, tag=None, **kwargs):
stage = tmp_dir.dvc.run(single_stage=True, **kwargs)
if hasattr(tmp_dir.dvc, "scm"):
files = [stage.path]
files += [
os.fspath(out.path_info) for out in stage.outs if not out.use_cache
]
tmp_dir.dvc.scm.add(files)
if commit:
tmp_dir.dvc.scm.commit(commit)
if tag:
tmp_dir.dvc.scm.tag(tag)
def _write_csv(metric, filename, header=True):
with open(filename, "w", newline="") as csvobj:
if header:
writer = csv.DictWriter(
csvobj, fieldnames=list(first(metric).keys())
)
writer.writeheader()
writer.writerows(metric)
else:
writer = csv.writer(csvobj)
for d in metric:
assert len(d) == 1
writer.writerow(list(d.values()))
def _write_json(tmp_dir, metric, filename):
tmp_dir.gen(filename, json.dumps(metric, sort_keys=True))
def test_plot_csv_one_column(tmp_dir, scm, dvc):
# no header
metric = [{"val": 2}, {"val": 3}]
_write_csv(metric, "metric.csv", header=False)
_run_with(tmp_dir, plots_no_cache=["metric.csv"])
plot_string = dvc.plots.show(
csv_header=False,
x_title="x_title",
y_title="y_title",
title="mytitle",
)["metric.csv"]
plot_content = json.loads(plot_string)
assert plot_content["title"] == "mytitle"
assert plot_content["data"]["values"] == [
{"0": "2", PlotData.INDEX_FIELD: 0, "rev": "working tree"},
{"0": "3", PlotData.INDEX_FIELD: 1, "rev": "working tree"},
]
assert plot_content["encoding"]["x"]["field"] == PlotData.INDEX_FIELD
assert plot_content["encoding"]["y"]["field"] == "0"
assert plot_content["encoding"]["x"]["title"] == "x_title"
assert plot_content["encoding"]["y"]["title"] == "y_title"
def test_plot_csv_multiple_columns(tmp_dir, scm, dvc):
metric = [
OrderedDict([("first_val", 100), ("second_val", 100), ("val", 2)]),
OrderedDict([("first_val", 200), ("second_val", 300), ("val", 3)]),
]
_write_csv(metric, "metric.csv")
_run_with(tmp_dir, plots_no_cache=["metric.csv"])
plot_string = dvc.plots.show()["metric.csv"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{
"val": "2",
PlotData.INDEX_FIELD: 0,
"rev": "working tree",
"first_val": "100",
"second_val": "100",
},
{
"val": "3",
PlotData.INDEX_FIELD: 1,
"rev": "working tree",
"first_val": "200",
"second_val": "300",
},
]
assert plot_content["encoding"]["x"]["field"] == PlotData.INDEX_FIELD
assert plot_content["encoding"]["y"]["field"] == "val"
def test_plot_csv_choose_axes(tmp_dir, scm, dvc):
metric = [
OrderedDict([("first_val", 100), ("second_val", 100), ("val", 2)]),
OrderedDict([("first_val", 200), ("second_val", 300), ("val", 3)]),
]
_write_csv(metric, "metric.csv")
_run_with(tmp_dir, plots_no_cache=["metric.csv"])
plot_string = dvc.plots.show(x_field="first_val", y_field="second_val")[
"metric.csv"
]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{
"val": "2",
"rev": "working tree",
"first_val": "100",
"second_val": "100",
},
{
"val": "3",
"rev": "working tree",
"first_val": "200",
"second_val": "300",
},
]
assert plot_content["encoding"]["x"]["field"] == "first_val"
assert plot_content["encoding"]["y"]["field"] == "second_val"
def test_plot_json_single_val(tmp_dir, scm, dvc):
metric = [{"val": 2}, {"val": 3}]
_write_json(tmp_dir, metric, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="first run")
plot_string = dvc.plots.show()["metric.json"]
plot_json = json.loads(plot_string)
assert plot_json["data"]["values"] == [
{"val": 2, PlotData.INDEX_FIELD: 0, "rev": "working tree"},
{"val": 3, PlotData.INDEX_FIELD: 1, "rev": "working tree"},
]
assert plot_json["encoding"]["x"]["field"] == PlotData.INDEX_FIELD
assert plot_json["encoding"]["y"]["field"] == "val"
def test_plot_json_multiple_val(tmp_dir, scm, dvc):
metric = [
{"first_val": 100, "val": 2},
{"first_val": 200, "val": 3},
]
_write_json(tmp_dir, metric, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="first run")
plot_string = dvc.plots.show()["metric.json"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{
"val": 2,
PlotData.INDEX_FIELD: 0,
"first_val": 100,
"rev": "working tree",
},
{
"val": 3,
PlotData.INDEX_FIELD: 1,
"first_val": 200,
"rev": "working tree",
},
]
assert plot_content["encoding"]["x"]["field"] == PlotData.INDEX_FIELD
assert plot_content["encoding"]["y"]["field"] == "val"
def test_plot_confusion(tmp_dir, dvc):
confusion_matrix = [
{"predicted": "B", "actual": "A"},
{"predicted": "A", "actual": "A"},
]
_write_json(tmp_dir, confusion_matrix, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="first run")
plot_string = dvc.plots.show(
template="confusion", x_field="predicted", y_field="actual",
)["metric.json"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{"predicted": "B", "actual": "A", "rev": "working tree"},
{"predicted": "A", "actual": "A", "rev": "working tree"},
]
assert plot_content["encoding"]["x"]["field"] == "predicted"
assert plot_content["encoding"]["y"]["field"] == "actual"
def test_plot_multiple_revs_default(tmp_dir, scm, dvc):
metric_1 = [{"y": 2}, {"y": 3}]
_write_json(tmp_dir, metric_1, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="init", tag="v1")
metric_2 = [{"y": 3}, {"y": 5}]
_write_json(tmp_dir, metric_2, "metric.json")
_run_with(
tmp_dir, plots_no_cache=["metric.json"], commit="second", tag="v2"
)
metric_3 = [{"y": 5}, {"y": 6}]
_write_json(tmp_dir, metric_3, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="third")
plot_string = dvc.plots.show(fields={"y"}, revs=["HEAD", "v2", "v1"],)[
"metric.json"
]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{"y": 5, PlotData.INDEX_FIELD: 0, "rev": "HEAD"},
{"y": 6, PlotData.INDEX_FIELD: 1, "rev": "HEAD"},
{"y": 3, PlotData.INDEX_FIELD: 0, "rev": "v2"},
{"y": 5, PlotData.INDEX_FIELD: 1, "rev": "v2"},
{"y": 2, PlotData.INDEX_FIELD: 0, "rev": "v1"},
{"y": 3, PlotData.INDEX_FIELD: 1, "rev": "v1"},
]
assert plot_content["encoding"]["x"]["field"] == PlotData.INDEX_FIELD
assert plot_content["encoding"]["y"]["field"] == "y"
def test_plot_multiple_revs(tmp_dir, scm, dvc):
shutil.copy(tmp_dir / ".dvc" / "plots" / "default.json", "template.json")
metric_1 = [{"y": 2}, {"y": 3}]
_write_json(tmp_dir, metric_1, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="init", tag="v1")
metric_2 = [{"y": 3}, {"y": 5}]
_write_json(tmp_dir, metric_2, "metric.json")
_run_with(
tmp_dir, plots_no_cache=["metric.json"], commit="second", tag="v2"
)
metric_3 = [{"y": 5}, {"y": 6}]
_write_json(tmp_dir, metric_3, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="third")
plot_string = dvc.plots.show(
template="template.json", revs=["HEAD", "v2", "v1"],
)["metric.json"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{"y": 5, PlotData.INDEX_FIELD: 0, "rev": "HEAD"},
{"y": 6, PlotData.INDEX_FIELD: 1, "rev": "HEAD"},
{"y": 3, PlotData.INDEX_FIELD: 0, "rev": "v2"},
{"y": 5, PlotData.INDEX_FIELD: 1, "rev": "v2"},
{"y": 2, PlotData.INDEX_FIELD: 0, "rev": "v1"},
{"y": 3, PlotData.INDEX_FIELD: 1, "rev": "v1"},
]
assert plot_content["encoding"]["x"]["field"] == PlotData.INDEX_FIELD
assert plot_content["encoding"]["y"]["field"] == "y"
def test_plot_even_if_metric_missing(tmp_dir, scm, dvc, caplog):
tmp_dir.scm_gen("some_file", "content", commit="there is no metric")
scm.tag("v1")
metric = [{"y": 2}, {"y": 3}]
_write_json(tmp_dir, metric, "metric.json")
_run_with(
tmp_dir,
plots_no_cache=["metric.json"],
commit="there is metric",
tag="v2",
)
caplog.clear()
with caplog.at_level(logging.WARNING, "dvc"):
plot_string = dvc.plots.show(revs=["v1", "v2"])["metric.json"]
assert (
"File 'metric.json' was not found at: 'v1'. "
"It will not be plotted." in caplog.text
)
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{"y": 2, PlotData.INDEX_FIELD: 0, "rev": "v2"},
{"y": 3, PlotData.INDEX_FIELD: 1, "rev": "v2"},
]
assert plot_content["encoding"]["x"]["field"] == PlotData.INDEX_FIELD
assert plot_content["encoding"]["y"]["field"] == "y"
def test_throw_on_no_metric_at_all(tmp_dir, scm, dvc, caplog):
tmp_dir.scm_gen("some_file", "content", commit="there is no metric")
scm.tag("v1")
tmp_dir.gen("some_file", "make repo dirty")
caplog.clear()
with pytest.raises(NoMetricInHistoryError) as error, caplog.at_level(
logging.WARNING, "dvc"
):
dvc.plots.show(targets="metric.json", revs=["v1"])
# do not warn if none found
assert len(caplog.messages) == 0
assert str(error.value) == "Could not find 'metric.json'."
@pytest.fixture()
def custom_template(tmp_dir, dvc):
custom_template = tmp_dir / "custom_template.json"
shutil.copy(
tmp_dir / ".dvc" / "plots" / "default.json", custom_template,
)
return custom_template
def test_custom_template(tmp_dir, scm, dvc, custom_template):
metric = [{"a": 1, "b": 2}, {"a": 2, "b": 3}]
_write_json(tmp_dir, metric, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="init", tag="v1")
plot_string = dvc.plots.show(
template=os.fspath(custom_template), x_field="a", y_field="b"
)["metric.json"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{"a": 1, "b": 2, "rev": "working tree"},
{"a": 2, "b": 3, "rev": "working tree"},
]
assert plot_content["encoding"]["x"]["field"] == "a"
assert plot_content["encoding"]["y"]["field"] == "b"
def _replace(path, src, dst):
path.write_text(path.read_text().replace(src, dst))
def test_custom_template_with_specified_data(
tmp_dir, scm, dvc, custom_template
):
_replace(
custom_template, "DVC_METRIC_DATA", "DVC_METRIC_DATA,metric.json",
)
metric = [{"a": 1, "b": 2}, {"a": 2, "b": 3}]
_write_json(tmp_dir, metric, "metric.json")
_run_with(tmp_dir, outs_no_cache=["metric.json"], commit="init", tag="v1")
plot_string = dvc.plots.show(
template=os.fspath(custom_template), x_field="a", y_field="b",
)["metric.json"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{"a": 1, "b": 2, "rev": "working tree"},
{"a": 2, "b": 3, "rev": "working tree"},
]
assert plot_content["encoding"]["x"]["field"] == "a"
assert plot_content["encoding"]["y"]["field"] == "b"
def test_plot_override_specified_data_source(tmp_dir, scm, dvc):
shutil.copy(
tmp_dir / ".dvc" / "plots" / "default.json",
tmp_dir / "newtemplate.json",
)
_replace(
tmp_dir / "newtemplate.json",
"DVC_METRIC_DATA",
"DVC_METRIC_DATA,metric.json",
)
metric = [{"a": 1, "b": 2}, {"a": 2, "b": 3}]
_write_json(tmp_dir, metric, "metric2.json")
_run_with(tmp_dir, outs_no_cache=["metric2.json"], commit="init", tag="v1")
plot_string = dvc.plots.show(
targets=["metric2.json"], template="newtemplate.json", x_field="a"
)["metric2.json"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{"a": 1, "b": 2, "rev": "working tree"},
{"a": 2, "b": 3, "rev": "working tree"},
]
assert plot_content["encoding"]["x"]["field"] == "a"
assert plot_content["encoding"]["y"]["field"] == "b"
def test_should_raise_on_no_template_and_datafile(tmp_dir, dvc):
with pytest.raises(NoDataOrTemplateProvided):
dvc.plots.show()
def test_should_raise_on_no_template(tmp_dir, dvc):
with pytest.raises(TemplateNotFoundError):
dvc.plots.show("metric.json", template="non_existing_template.json")
def test_plot_no_data(tmp_dir, dvc):
with pytest.raises(NoDataForTemplateError):
dvc.plots.show(template="default")
def test_plot_wrong_metric_type(tmp_dir, scm, dvc):
tmp_dir.scm_gen("metric.txt", "content", commit="initial")
with pytest.raises(PlotMetricTypeError):
dvc.plots.show(targets=["metric.txt"])
def test_plot_choose_columns(tmp_dir, scm, dvc, custom_template):
metric = [{"a": 1, "b": 2, "c": 3}, {"a": 2, "b": 3, "c": 4}]
_write_json(tmp_dir, metric, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="init", tag="v1")
plot_string = dvc.plots.show(
template=os.fspath(custom_template),
fields={"b", "c"},
x_field="b",
y_field="c",
)["metric.json"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{"b": 2, "c": 3, "rev": "working tree"},
{"b": 3, "c": 4, "rev": "working tree"},
]
assert plot_content["encoding"]["x"]["field"] == "b"
assert plot_content["encoding"]["y"]["field"] == "c"
def test_plot_default_choose_column(tmp_dir, scm, dvc):
metric = [{"a": 1, "b": 2, "c": 3}, {"a": 2, "b": 3, "c": 4}]
_write_json(tmp_dir, metric, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="init", tag="v1")
plot_string = dvc.plots.show(fields={"b"})["metric.json"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{PlotData.INDEX_FIELD: 0, "b": 2, "rev": "working tree"},
{PlotData.INDEX_FIELD: 1, "b": 3, "rev": "working tree"},
]
assert plot_content["encoding"]["x"]["field"] == PlotData.INDEX_FIELD
assert plot_content["encoding"]["y"]["field"] == "b"
def test_plot_yaml(tmp_dir, scm, dvc):
metric = [{"val": 2}, {"val": 3}]
with open("metric.yaml", "w") as fobj:
yaml.dump(metric, fobj)
_run_with(tmp_dir, plots_no_cache=["metric.yaml"])
plot_string = dvc.plots.show()["metric.yaml"]
plot_content = json.loads(plot_string)
assert plot_content["data"]["values"] == [
{"val": 2, PlotData.INDEX_FIELD: 0, "rev": "working tree"},
{"val": 3, PlotData.INDEX_FIELD: 1, "rev": "working tree"},
]
def test_raise_on_wrong_field(tmp_dir, scm, dvc):
metric = [{"val": 2}, {"val": 3}]
_write_json(tmp_dir, metric, "metric.json")
_run_with(tmp_dir, plots_no_cache=["metric.json"], commit="first run")
with pytest.raises(NoFieldInDataError):
dvc.plots.show("metric.json", x_field="no_val")
with pytest.raises(NoFieldInDataError):
dvc.plots.show("metric.json", y_field="no_val")