'sqlite-utils insert tablename file.json' command

tests/test_cli.py

@@ -1,5 +1,6 @@
 from sqlite_utils import cli, Database
 from click.testing import CliRunner
+import json
 import os
 import pytest
 import sqlite3
@@ -65,3 +66,47 @@ def test_optimize(db_path):
     # Sanity check that --no-vacuum doesn't throw errors:
     result = CliRunner().invoke(cli.cli, ["optimize", "--no-vacuum", db_path])
     assert 0 == result.exit_code
+
+
+def test_insert_simple(tmpdir):
+    json_path = str(tmpdir / "dog.json")
+    db_path = str(tmpdir / "dogs.db")
+    open(json_path, "w").write(json.dumps({"name": "Cleo", "age": 4}))
+    result = CliRunner().invoke(cli.cli, ["insert", db_path, "dogs", json_path])
+    assert 0 == result.exit_code
+    assert [{"age": 4, "name": "Cleo"}] == Database(db_path).execute_returning_dicts(
+        "select * from dogs"
+    )
+    db = Database(db_path)
+    assert ["dogs"] == db.table_names()
+    assert [] == db["dogs"].indexes
+
+
+def test_insert_with_primary_key(db_path, tmpdir):
+    json_path = str(tmpdir / "dog.json")
+    open(json_path, "w").write(json.dumps({"id": 1, "name": "Cleo", "age": 4}))
+    result = CliRunner().invoke(
+        cli.cli, ["insert", db_path, "dogs", json_path, "--pk", "id"]
+    )
+    assert 0 == result.exit_code
+    assert [{"id": 1, "age": 4, "name": "Cleo"}] == Database(
+        db_path
+    ).execute_returning_dicts("select * from dogs")
+    db = Database(db_path)
+    assert ["id"] == db["dogs"].pks
+
+
+def test_insert_multiple_with_primary_key(db_path, tmpdir):
+    json_path = str(tmpdir / "dogs.json")
+    dogs = [{"id": i, "name": "Cleo {}".format(i), "age": i + 3} for i in range(1, 21)]
+    open(json_path, "w").write(json.dumps(dogs))
+    open("/tmp/dogs.json", "w").write(json.dumps(dogs, indent=4))
+    result = CliRunner().invoke(
+        cli.cli, ["insert", db_path, "dogs", json_path, "--pk", "id"]
+    )
+    assert 0 == result.exit_code
+    assert dogs == Database(db_path).execute_returning_dicts(
+        "select * from dogs order by id"
+    )
+    db = Database(db_path)
+    assert ["id"] == db["dogs"].pks