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test_cli.py
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from click.testing import CliRunner
from csv_diff import cli, load_csv
import csv
import pytest
from .test_csv_diff import ONE, ONE_TSV, TWO, TWO_TSV, THREE, FIVE
import io
import json
from textwrap import dedent
@pytest.fixture
def tsv_files(tmpdir):
one = tmpdir / "one.tsv"
one.write(ONE_TSV)
two = tmpdir / "two.tsv"
two.write(TWO_TSV)
return str(one), str(two)
@pytest.fixture
def json_files(tmpdir):
one = tmpdir / "one.json"
one.write(
json.dumps(
[
{"id": 1, "name": "Cleo", "nested": {"foo": 3}, "extra": 1},
{"id": 2, "name": "Pancakes", "nested": {"foo": 3}},
]
)
)
two = tmpdir / "two.json"
two.write(
json.dumps(
[
{"id": 1, "name": "Cleo", "nested": {"foo": 3, "bar": 5}, "extra": 1},
{"id": 2, "name": "Pancakes!", "nested": {"foo": 3}, "extra": 1},
]
)
)
return str(one), str(two)
@pytest.fixture
def json_files_two(tmpdir):
one = tmpdir / "one.json"
one.write(
json.dumps(
[
{"state": "CA", "county": "Yikes", "pop": 100, "extra": 1},
{"state": "NY", "county": "Beep", "pop": 200, "extra": 2 },
{"state": "CA", "county": "Zoinks", "pop": 100 },
{"state": "NY", "county": "Zoinks", "pop": 200 }
]
)
)
two = tmpdir / "two.json"
two.write(
json.dumps(
[
{"state": "CA", "county": "Yikes", "pop": 100},
{"state": "NY", "county": "Beep", "pop": 200, "extra": 2 },
{"state": "CA", "county": "Zoinks", "pop": 300 },
{"state": "NY", "county": "Zoinks", "pop": 200 }
]
)
)
return str(one), str(two)
def test_human_cli(tmpdir):
one = tmpdir / "one.csv"
one.write(ONE)
two = tmpdir / "two.csv"
two.write(TWO)
result = CliRunner().invoke(cli.cli, [str(one), str(two), "--key", "id"])
assert 0 == result.exit_code
assert (
dedent(
"""
1 row changed
id: 1
age: "4" => "5"
"""
).strip()
== result.output.strip()
)
def test_human_cli_alternative_names(tmpdir):
one = tmpdir / "one.csv"
one.write(ONE)
five = tmpdir / "five.csv"
five.write(FIVE)
result = CliRunner().invoke(
cli.cli,
[str(one), str(five), "--key", "id", "--singular", "tree", "--plural", "trees"],
)
assert 0 == result.exit_code, result.output
assert (
dedent(
"""
1 tree changed, 2 trees added
1 tree changed
id: 1
age: "4" => "5"
2 trees added
id: 3
name: Bailey
age: 1
id: 4
name: Carl
age: 7
"""
).strip()
== result.output.strip()
)
def test_human_cli_json(tmpdir):
one = tmpdir / "one.csv"
one.write(ONE)
two = tmpdir / "two.csv"
two.write(TWO)
result = CliRunner().invoke(cli.cli, [str(one), str(two), "--key", "id", "--json"])
assert 0 == result.exit_code
assert {
"added": [],
"removed": [],
"changed": [{"key": "1", "changes": {"age": ["4", "5"]}}],
"columns_added": [],
"columns_removed": [],
} == json.loads(result.output.strip())
def test_tsv_files(tsv_files):
one, two = tsv_files
result = CliRunner().invoke(
cli.cli, [one, two, "--key", "id", "--json", "--format", "tsv"]
)
assert 0 == result.exit_code
assert {
"added": [],
"removed": [],
"changed": [{"key": "1", "changes": {"age": ["4", "5"]}}],
"columns_added": [],
"columns_removed": [],
} == json.loads(result.output.strip())
def test_json_files(json_files):
one, two = json_files
result = CliRunner().invoke(
cli.cli,
[one, two, "--key", "id", "--json", "--format", "json"],
catch_exceptions=False,
)
assert 0 == result.exit_code
assert {
"added": [],
"removed": [],
"changed": [
{"key": 1, "changes": {"nested": ['{"foo": 3}', '{"foo": 3, "bar": 5}']}},
{
"key": 2,
"changes": {"name": ["Pancakes", "Pancakes!"], "extra": [None, 1]},
},
],
"columns_added": [],
"columns_removed": [],
} == json.loads(result.output.strip())
def test_sniff_format(tsv_files):
one, two = tsv_files
result = CliRunner().invoke(cli.cli, [one, two, "--key", "id", "--json"])
assert 0 == result.exit_code
assert {
"added": [],
"removed": [],
"changed": [{"key": "1", "changes": {"age": ["4", "5"]}}],
"columns_added": [],
"columns_removed": [],
} == json.loads(result.output.strip())
def test_format_overrides_sniff(tsv_files):
one, two = tsv_files
result = CliRunner().invoke(
cli.cli, [one, two, "--key", "id", "--json", "--format", "csv"]
)
assert 1 == result.exit_code
def test_column_containing_dot(tmpdir):
# https://github.com/simonw/csv-diff/issues/7
one = tmpdir / "one.csv"
two = tmpdir / "two.csv"
one.write(
dedent(
"""
id,foo.bar,foo.baz
1,Dog,Cat
"""
).strip()
)
two.write(
dedent(
"""
id,foo.bar,foo.baz
1,Dog,Beaver
"""
).strip()
)
result = CliRunner().invoke(
cli.cli, [str(one), str(two), "--key", "id", "--json"], catch_exceptions=False
)
assert 0 == result.exit_code
assert {
"added": [],
"removed": [],
"changed": [{"key": "1", "changes": {"foo.baz": ["Cat", "Beaver"]}}],
"columns_added": [],
"columns_removed": [],
} == json.loads(result.output.strip())
def test_semicolon_delimited(tmpdir):
# https://github.com/simonw/csv-diff/issues/6
one = tmpdir / "one.csv"
two = tmpdir / "two.csv"
one.write(
dedent(
"""
id;name
1;Mark
"""
).strip()
)
two.write(
dedent(
"""
id;name
1;Brian
"""
).strip()
)
result = CliRunner().invoke(
cli.cli, [str(one), str(two), "--key", "id", "--json"], catch_exceptions=False
)
assert 0 == result.exit_code
assert {
"added": [],
"removed": [],
"changed": [{"key": "1", "changes": {"name": ["Mark", "Brian"]}}],
"columns_added": [],
"columns_removed": [],
} == json.loads(result.output.strip())
def test_multikey(json_files_two):
# https://github.com/simonw/csv-diff/issues/7
one, two = json_files_two
result = CliRunner().invoke(
cli.cli,
[one, two, "--key", "state,county", "--json", "--format", "json"],
catch_exceptions=False,
)
assert 0 == result.exit_code
assert {
"added": [],
"removed": [],
"changed": [
{"key": ["CA", "Yikes"], "changes": {"extra": [1, None]}},
{"key": ["CA", "Zoinks"], "changes": {"pop": [100, 300]}},
],
"columns_added": [],
"columns_removed": [],
} == json.loads(result.output.strip())
def test_ignore(json_files_two):
# https://github.com/simonw/csv-diff/issues/7
one, two = json_files_two
result = CliRunner().invoke(
cli.cli,
[one, two, "--key", "state,county", "--ignore", "extra", "--json", "--format", "json"],
catch_exceptions=False,
)
assert 0 == result.exit_code
assert {
"added": [],
"removed": [],
"changed": [
{"key": ["CA", "Zoinks"], "changes": {"pop": [100, 300]}},
],
"columns_added": [],
"columns_removed": [],
} == json.loads(result.output.strip())