Codegen: use one generated test file per directory

This collapses all generated test QL sources into a single one per
directory, using query predicates to run the different tests.

This should improve the time required to run generated tests.

misc/codegen/generators/qlgen.py

@@ -372,11 +372,6 @@ def _partition_iter(x, pred):
     return filter(pred, x1), itertools.filterfalse(pred, x2)
 
 
-def _partition(l, pred):
-    """partitions a list according to boolean predicate"""
-    return map(list, _partition_iter(l, pred))
-
-
 def _is_in_qltest_collapsed_hierarchy(
     cls: schema.Class, lookup: typing.Dict[str, schema.Class]
 ):
@@ -625,29 +620,18 @@ def generate(opts, renderer):
                         test_dir / missing_test_source_filename,
                     )
                     continue
-                total_props, partial_props = _partition(
-                    _get_all_properties_to_be_tested(c, data.classes),
-                    lambda p: p.is_total,
-                )
                 renderer.render(
                     ql.ClassTester(
                         class_name=c.name,
-                        properties=total_props,
+                        properties=list(
+                            _get_all_properties_to_be_tested(c, data.classes)
+                        ),
                         elements_module=elements_module,
                         # in case of collapsed hierarchies we want to see the actual QL class in results
                         show_ql_class="qltest_collapse_hierarchy" in c.pragmas,
                     ),
                     test_dir / f"{c.name}.ql",
                 )
-                for p in partial_props:
-                    renderer.render(
-                        ql.PropertyTester(
-                            class_name=c.name,
-                            elements_module=elements_module,
-                            property=p,
-                        ),
-                        test_dir / f"{c.name}_{p.getter}.ql",
-                    )
 
         final_synth_types = []
         non_final_synth_types = []

misc/codegen/lib/ql.py

@@ -245,13 +245,6 @@ class ClassTester(TesterBase):
     show_ql_class: bool = False
 
 
-@dataclass
-class PropertyTester(TesterBase):
-    template: ClassVar = "ql_test_property"
-
-    property: PropertyForTest
-
-
 @dataclass
 class MissingTestInstructions:
     template: ClassVar = "ql_test_missing"

misc/codegen/templates/ql_test_class.mustache

@@ -3,14 +3,28 @@
 import {{elements_module}}
 import TestUtils
 
-from {{class_name}} x{{#properties}}, {{#type}}{{.}}{{/type}}{{^type}}string{{/type}} {{getter}}{{/properties}}
-where toBeTested(x) and not x.isUnknown()
+query predicate instances({{class_name}} x{{#show_ql_class}}, string primaryQlClasses{{/show_ql_class}}{{#properties}}{{#is_total}}, string {{getter}}__label, {{#type}}{{.}}{{/type}}{{^type}}string{{/type}} {{getter}}{{/is_total}}{{/properties}}) {
+    toBeTested(x) and not x.isUnknown()
+    {{#show_ql_class}}
+    and primaryQlClasses = x.getPrimaryQlClasses()
+    {{/show_ql_class}}
+    {{#properties}}
+    {{#is_total}}
+    and {{getter}}__label = "{{getter}}:"
+    {{#type}}
+    and {{getter}} = x.{{getter}}()
+    {{/type}}
+    {{^type}}
+    and if x.{{getter}}() then {{getter}} = "yes" else {{getter}} = "no"
+    {{/type}}
+    {{/is_total}}
+    {{/properties}}
+}
+
 {{#properties}}
-{{#type}}
-and {{getter}} = x.{{getter}}()
-{{/type}}
-{{^type}}
-and if x.{{getter}}() then {{getter}} = "yes" else {{getter}} = "no"
-{{/type}}
+{{^is_total}}
+query predicate {{getter}}({{class_name}} x{{#is_indexed}}, int index{{/is_indexed}}, {{type}} {{getter}}) {
+    toBeTested(x) and not x.isUnknown() and {{getter}} = x.{{getter}}({{#is_indexed}}index{{/is_indexed}})
+}
+{{/is_total}}
 {{/properties}}
-select x{{#show_ql_class}}, x.getPrimaryQlClasses(){{/show_ql_class}}{{#properties}}, "{{getter}}:", {{getter}}{{/properties}}

misc/codegen/templates/ql_test_property.mustache

@@ -1,10 +0,0 @@
-// generated by {{generator}}, do not edit
-
-import {{elements_module}}
-import TestUtils
-
-{{#property}}
-from {{class_name}} x{{#is_indexed}}, int index{{/is_indexed}}
-where toBeTested(x) and not x.isUnknown()
-select x, {{#is_indexed}}index, {{/is_indexed}}x.{{getter}}({{#is_indexed}}index{{/is_indexed}})
-{{/property}}

misc/codegen/test/test_qlgen.py

@@ -960,10 +960,6 @@ def a_ql_class_tester(**kwargs):
     return ql.ClassTester(**kwargs, elements_module=stub_import)
 
 
-def a_ql_property_tester(**kwargs):
-    return ql.PropertyTester(**kwargs, elements_module=stub_import)
-
-
 def test_test_source_present(opts, generate_tests):
     write(opts.ql_test_output / "A" / "test.swift")
     assert generate_tests(
@@ -1041,31 +1037,19 @@ def test_test_partial_properties(opts, generate_tests):
         "B/B.ql": a_ql_class_tester(
             class_name="B",
             properties=[
+                ql.PropertyForTest(getter="getX", is_total=False, type="string"),
                 ql.PropertyForTest(getter="hasX"),
+                ql.PropertyForTest(
+                    getter="getY", is_total=False, is_indexed=True, type="bool"
+                ),
                 ql.PropertyForTest(getter="getNumberOfYs", type="int"),
+                ql.PropertyForTest(
+                    getter="getZ", is_total=False, is_indexed=True, type="int"
+                ),
+                ql.PropertyForTest(getter="getAW", is_total=False, type="string"),
                 ql.PropertyForTest(getter="getNumberOfWs", type="int"),
             ],
         ),
-        "B/B_getX.ql": a_ql_property_tester(
-            class_name="B",
-            property=ql.PropertyForTest(getter="getX", is_total=False, type="string"),
-        ),
-        "B/B_getY.ql": a_ql_property_tester(
-            class_name="B",
-            property=ql.PropertyForTest(
-                getter="getY", is_total=False, is_indexed=True, type="bool"
-            ),
-        ),
-        "B/B_getZ.ql": a_ql_property_tester(
-            class_name="B",
-            property=ql.PropertyForTest(
-                getter="getZ", is_total=False, is_indexed=True, type="int"
-            ),
-        ),
-        "B/B_getAW.ql": a_ql_property_tester(
-            class_name="B",
-            property=ql.PropertyForTest(getter="getAW", is_total=False, type="string"),
-        ),
     }
 
 
@@ -1090,15 +1074,12 @@ def test_test_properties_deduplicated(opts, generate_tests):
             class_name="Final",
             properties=[
                 ql.PropertyForTest(getter="getX", type="string"),
+                ql.PropertyForTest(
+                    getter="getY", is_total=False, is_indexed=True, type="bool"
+                ),
                 ql.PropertyForTest(getter="getNumberOfYs", type="int"),
             ],
         ),
-        "Final/Final_getY.ql": a_ql_property_tester(
-            class_name="Final",
-            property=ql.PropertyForTest(
-                getter="getY", is_total=False, is_indexed=True, type="bool"
-            ),
-        ),
     }