Add basic env var provider

Signed-off-by: christian.lutnik <christian.lutnik@dynatrace.com>

Author: chrfwow

providers/openfeature-provider-env-var/pyproject.toml

@@ -26,11 +26,6 @@ dev = [
 [tool.hatch.build.targets.wheel]
 packages = ["src/openfeature"]
 
-[tool.pytest.ini_options]
-testpaths = ["tests"]
-python_files = "test_*.py"
-python_functions = "test_*"
-
 [tool.hatch]
 
 pre-install-commands = [
@@ -45,4 +40,22 @@ dependencies = ["mypy"]
 
 [tool.mypy]
 mypy_path = "src"
-files = "src"
+files = "src"
+
+[tool.hatch.envs.hatch-test]
+dependencies = [
+    "pytest>=8.3.5",
+    "pytest-cov>=6.1.1",
+    "pytest",
+]
+
+[tool.coverage.run]
+omit = [
+    "tests/**",
+]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = "test_*.py"
+python_functions = "test_*"
+addopts = "--cov --cov-report xml --cov-report html --junit-xml=tests-results.xml"

providers/openfeature-provider-env-var/tests/test_provider.py

@@ -12,7 +12,7 @@ def test_unknown_flag_key_throws_flag_not_found_error():
         provider.resolve_boolean_details("unknown_flag_key", True, None)
 
 
-def test_known_flag_key_evaluates_the_flag():
+def test_string_flag_key_evaluates_the_flag():
     key = "test-flag-key"
     value = "test-value"
     os.environ[key] = value
@@ -21,3 +21,36 @@ def test_known_flag_key_evaluates_the_flag():
     result = provider.resolve_string_details(key, True, None)
 
     assert result.value == value
+
+
+def test_int_flag_key_evaluates_the_flag():
+    key = "test-flag-key"
+    value = 324
+    os.environ[key] = str(value)
+
+    provider = EnvVarProvider()
+    result = provider.resolve_integer_details(key, True, None)
+
+    assert result.value == value
+
+
+def test_float_flag_key_evaluates_the_flag():
+    key = "test-flag-key"
+    value = 324.34
+    os.environ[key] = str(value)
+
+    provider = EnvVarProvider()
+    result = provider.resolve_float_details(key, True, None)
+
+    assert result.value == value
+
+
+def test_boolean_flag_key_evaluates_the_flag():
+    key = "test-flag-key"
+    value = True
+    os.environ[key] = str(value)
+
+    provider = EnvVarProvider()
+    result = provider.resolve_boolean_details(key, True, None)
+
+    assert result.value == value