Reorganize some unittest

tests/unit/config/__init__.py

@@ -0,0 +1,279 @@
+from contextlib import contextmanager
+import os
+import shutil
+import tempfile
+import unittest
+from argparse import Namespace
+
+
+import yaml
+
+import dbt.config
+import dbt.exceptions
+from dbt import flags
+from dbt.constants import PACKAGES_FILE_NAME
+
+
+from dbt.flags import set_from_args
+
+from tests.unit.utils import normalize
+
+INITIAL_ROOT = os.getcwd()
+
+
+@contextmanager
+def temp_cd(path):
+    current_path = os.getcwd()
+    os.chdir(path)
+    try:
+        yield
+    finally:
+        os.chdir(current_path)
+
+
+@contextmanager
+def raises_nothing():
+    yield
+
+
+def empty_profile_renderer():
+    return dbt.config.renderer.ProfileRenderer({})
+
+
+def empty_project_renderer():
+    return dbt.config.renderer.DbtProjectYamlRenderer()
+
+
+model_config = {
+    "my_package_name": {
+        "enabled": True,
+        "adwords": {
+            "adwords_ads": {"materialized": "table", "enabled": True, "schema": "analytics"}
+        },
+        "snowplow": {
+            "snowplow_sessions": {
+                "sort": "timestamp",
+                "materialized": "incremental",
+                "dist": "user_id",
+                "unique_key": "id",
+            },
+            "base": {
+                "snowplow_events": {
+                    "sort": ["timestamp", "userid"],
+                    "materialized": "table",
+                    "sort_type": "interleaved",
+                    "dist": "userid",
+                }
+            },
+        },
+    }
+}
+
+model_fqns = frozenset(
+    (
+        ("my_package_name", "snowplow", "snowplow_sessions"),
+        ("my_package_name", "snowplow", "base", "snowplow_events"),
+        ("my_package_name", "adwords", "adwords_ads"),
+    )
+)
+
+
+class Args:
+    def __init__(
+        self,
+        profiles_dir=None,
+        threads=None,
+        profile=None,
+        cli_vars=None,
+        version_check=None,
+        project_dir=None,
+        target=None,
+    ):
+        self.profile = profile
+        self.threads = threads
+        self.target = target
+        if profiles_dir is not None:
+            self.profiles_dir = profiles_dir
+            flags.PROFILES_DIR = profiles_dir
+        if cli_vars is not None:
+            self.vars = cli_vars
+        if version_check is not None:
+            self.version_check = version_check
+        if project_dir is not None:
+            self.project_dir = project_dir
+
+
+class BaseConfigTest(unittest.TestCase):
+    """Subclass this, and before calling the superclass setUp, set
+    self.profiles_dir and self.project_dir.
+    """
+
+    def setUp(self):
+        # Write project
+        self.project_dir = normalize(tempfile.mkdtemp())
+        self.default_project_data = {
+            "version": "0.0.1",
+            "name": "my_test_project",
+            "profile": "default",
+        }
+        self.write_project(self.default_project_data)
+
+        # Write profile
+        self.profiles_dir = normalize(tempfile.mkdtemp())
+        self.default_profile_data = {
+            "default": {
+                "outputs": {
+                    "postgres": {
+                        "type": "postgres",
+                        "host": "postgres-db-hostname",
+                        "port": 5555,
+                        "user": "db_user",
+                        "pass": "db_pass",
+                        "dbname": "postgres-db-name",
+                        "schema": "postgres-schema",
+                        "threads": 7,
+                    },
+                    "with-vars": {
+                        "type": "{{ env_var('env_value_type') }}",
+                        "host": "{{ env_var('env_value_host') }}",
+                        "port": "{{ env_var('env_value_port') | as_number }}",
+                        "user": "{{ env_var('env_value_user') }}",
+                        "pass": "{{ env_var('env_value_pass') }}",
+                        "dbname": "{{ env_var('env_value_dbname') }}",
+                        "schema": "{{ env_var('env_value_schema') }}",
+                    },
+                    "cli-and-env-vars": {
+                        "type": "{{ env_var('env_value_type') }}",
+                        "host": "{{ var('cli_value_host') }}",
+                        "port": "{{ env_var('env_value_port') | as_number }}",
+                        "user": "{{ env_var('env_value_user') }}",
+                        "pass": "{{ env_var('env_value_pass') }}",
+                        "dbname": "{{ env_var('env_value_dbname') }}",
+                        "schema": "{{ env_var('env_value_schema') }}",
+                    },
+                },
+                "target": "postgres",
+            },
+            "other": {
+                "outputs": {
+                    "other-postgres": {
+                        "type": "postgres",
+                        "host": "other-postgres-db-hostname",
+                        "port": 4444,
+                        "user": "other_db_user",
+                        "pass": "other_db_pass",
+                        "dbname": "other-postgres-db-name",
+                        "schema": "other-postgres-schema",
+                        "threads": 2,
+                    }
+                },
+                "target": "other-postgres",
+            },
+            "empty_profile_data": {},
+        }
+        self.write_profile(self.default_profile_data)
+
+        self.args = Namespace(
+            profiles_dir=self.profiles_dir,
+            cli_vars={},
+            version_check=True,
+            project_dir=self.project_dir,
+            target=None,
+            threads=None,
+            profile=None,
+        )
+        set_from_args(self.args, None)
+        self.env_override = {
+            "env_value_type": "postgres",
+            "env_value_host": "env-postgres-host",
+            "env_value_port": "6543",
+            "env_value_user": "env-postgres-user",
+            "env_value_pass": "env-postgres-pass",
+            "env_value_dbname": "env-postgres-dbname",
+            "env_value_schema": "env-postgres-schema",
+            "env_value_profile": "default",
+        }
+
+    def assertRaisesOrReturns(self, exc):
+        if exc is None:
+            return raises_nothing()
+        else:
+            return self.assertRaises(exc)
+
+    def tearDown(self):
+        try:
+            shutil.rmtree(self.project_dir)
+        except EnvironmentError:
+            pass
+        try:
+            shutil.rmtree(self.profiles_dir)
+        except EnvironmentError:
+            pass
+
+    def project_path(self, name):
+        return os.path.join(self.project_dir, name)
+
+    def profile_path(self, name):
+        return os.path.join(self.profiles_dir, name)
+
+    def write_project(self, project_data=None):
+        if project_data is None:
+            project_data = self.project_data
+        with open(self.project_path("dbt_project.yml"), "w") as fp:
+            yaml.dump(project_data, fp)
+
+    def write_packages(self, package_data):
+        with open(self.project_path("packages.yml"), "w") as fp:
+            yaml.dump(package_data, fp)
+
+    def write_profile(self, profile_data=None):
+        if profile_data is None:
+            profile_data = self.profile_data
+        with open(self.profile_path("profiles.yml"), "w") as fp:
+            yaml.dump(profile_data, fp)
+
+    def write_empty_profile(self):
+        with open(self.profile_path("profiles.yml"), "w") as fp:
+            yaml.dump("", fp)
+
+
+def project_from_config_norender(
+    cfg, packages=None, project_root="/invalid-root-path", verify_version=False
+):
+    if packages is None:
+        packages = {}
+    partial = dbt.config.project.PartialProject.from_dicts(
+        project_root,
+        project_dict=cfg,
+        packages_dict=packages,
+        selectors_dict={},
+        verify_version=verify_version,
+    )
+    # no rendering ... Why?
+    partial.project_dict["project-root"] = project_root
+    rendered = dbt.config.project.RenderComponents(
+        project_dict=partial.project_dict,
+        packages_dict=partial.packages_dict,
+        selectors_dict=partial.selectors_dict,
+    )
+    return partial.create_project(rendered)
+
+
+def project_from_config_rendered(
+    cfg,
+    packages=None,
+    project_root="/invalid-root-path",
+    verify_version=False,
+    packages_specified_path=PACKAGES_FILE_NAME,
+):
+    if packages is None:
+        packages = {}
+    partial = dbt.config.project.PartialProject.from_dicts(
+        project_root,
+        project_dict=cfg,
+        packages_dict=packages,
+        selectors_dict={},
+        verify_version=verify_version,
+        packages_specified_path=packages_specified_path,
+    )
+    return partial.render(empty_project_renderer())