Adding upstream version 3.1.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/utils.py

@@ -0,0 +1,95 @@
+import pytest
+import psycopg2
+import psycopg2.extras
+from pgcli.main import format_output, OutputSettings
+from pgcli.pgexecute import register_json_typecasters
+from os import getenv
+
+POSTGRES_USER = getenv("PGUSER", "postgres")
+POSTGRES_HOST = getenv("PGHOST", "localhost")
+POSTGRES_PORT = getenv("PGPORT", 5432)
+POSTGRES_PASSWORD = getenv("PGPASSWORD", "")
+
+
+def db_connection(dbname=None):
+    conn = psycopg2.connect(
+        user=POSTGRES_USER,
+        host=POSTGRES_HOST,
+        password=POSTGRES_PASSWORD,
+        port=POSTGRES_PORT,
+        database=dbname,
+    )
+    conn.autocommit = True
+    return conn
+
+
+try:
+    conn = db_connection()
+    CAN_CONNECT_TO_DB = True
+    SERVER_VERSION = conn.server_version
+    json_types = register_json_typecasters(conn, lambda x: x)
+    JSON_AVAILABLE = "json" in json_types
+    JSONB_AVAILABLE = "jsonb" in json_types
+except:
+    CAN_CONNECT_TO_DB = JSON_AVAILABLE = JSONB_AVAILABLE = False
+    SERVER_VERSION = 0
+
+
+dbtest = pytest.mark.skipif(
+    not CAN_CONNECT_TO_DB,
+    reason="Need a postgres instance at localhost accessible by user 'postgres'",
+)
+
+
+requires_json = pytest.mark.skipif(
+    not JSON_AVAILABLE, reason="Postgres server unavailable or json type not defined"
+)
+
+
+requires_jsonb = pytest.mark.skipif(
+    not JSONB_AVAILABLE, reason="Postgres server unavailable or jsonb type not defined"
+)
+
+
+def create_db(dbname):
+    with db_connection().cursor() as cur:
+        try:
+            cur.execute("""CREATE DATABASE _test_db""")
+        except:
+            pass
+
+
+def drop_tables(conn):
+    with conn.cursor() as cur:
+        cur.execute(
+            """
+            DROP SCHEMA public CASCADE;
+            CREATE SCHEMA public;
+            DROP SCHEMA IF EXISTS schema1 CASCADE;
+            DROP SCHEMA IF EXISTS schema2 CASCADE"""
+        )
+
+
+def run(
+    executor, sql, join=False, expanded=False, pgspecial=None, exception_formatter=None
+):
+    " Return string output for the sql to be run "
+
+    results = executor.run(sql, pgspecial, exception_formatter)
+    formatted = []
+    settings = OutputSettings(
+        table_format="psql", dcmlfmt="d", floatfmt="g", expanded=expanded
+    )
+    for title, rows, headers, status, sql, success, is_special in results:
+        formatted.extend(format_output(title, rows, headers, status, settings))
+    if join:
+        formatted = "\n".join(formatted)
+
+    return formatted
+
+
+def completions_to_set(completions):
+    return set(
+        (completion.display_text, completion.display_meta_text)
+        for completion in completions
+    )