re-add test for context rendering

tests/__snapshots__/test_jinja.ambr

@@ -1,4 +1,18 @@
 # serializer version: 1
+# name: test_context_rendering
+  '''
+  build:
+    string: ${{ blas_variant }}${{ hash }}_foo-bla
+  context:
+    name: foo
+    name_version: foo-bla
+    version: bla
+  package:
+    name: foo
+    version: bla
+
+  '''
+# ---
 # name: test_render_recipe_with_context
   '''
   about:

tests/data/context.yaml

@@ -0,0 +1,11 @@
+context:
+  name: "foo"
+  version: "bla"
+  name_version: ${{ name }}-${{ version }}
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+
+build:
+  string: ${{ blas_variant }}${{ hash }}_${{ name_version }}

tests/test_jinja.py

@@ -24,3 +24,14 @@ def test_version_to_build_string() -> None:
     assert _version_to_build_string("nothing") == "nothing"
     some_undefined = _MissingUndefined(name="python")
     assert _version_to_build_string(some_undefined) == "python_version_to_build_string"
+
+
+def test_context_rendering(snapshot) -> None:
+    recipe = Path("tests/data/context.yaml")
+    with recipe.open() as f:
+        recipe_yaml = load_yaml(f)
+
+    rendered = render_recipe_with_context(recipe_yaml)
+    into_yaml = yaml.dump(rendered)
+
+    assert into_yaml == snapshot