use actual nan and null fields for tests

Author: daniel-sanche

tests/system/pipeline_e2e/data.yaml

@@ -139,4 +139,9 @@ data:
     vec3:
       embedding: [5.0, 6.0, 7.0]
     vec4:
-      embedding: [1.0, 2.0, 4.0]
+      embedding: [1.0, 2.0, 4.0]
+  errors:
+    doc_with_nan:
+      value: "NaN"
+    doc_with_null:
+      value: null

tests/system/pipeline_e2e/logical.yaml

@@ -238,55 +238,48 @@ tests:
                 expression:
                   fieldReferenceValue: title
           name: sort
-  - description: testIsNotNull
+  - description: testIsNull
     pipeline:
-      - Collection: books
+      - Collection: errors
       - Where:
-          - Not:
-            - Function.equal:
-                - Field: rating
-                - null
-    assert_count: 10
+        - Function.equal:
+            - Field: value
+            - null
+    assert_results:
+      - value: null
     assert_proto:
       pipeline:
         stages:
         - args:
-          - referenceValue: /books
+          - referenceValue: /errors
           name: collection
         - args:
           - functionValue:
               args:
-              - functionValue:
-                  args:
-                  - fieldReferenceValue: rating
-                  - nullValue: null
-                  name: equal
-              name: not
+              - fieldReferenceValue: value
+              - nullValue: null
+              name: equal
           name: where
-  - description: testIsNotNan
+  - description: testIsNan
     pipeline:
-      - Collection: books
+      - Collection: errors
       - Where:
-          - Not:
-            - Function.equal:
-                - Field: rating
-                - NaN
-    assert_count: 10
+        - Function.equal:
+            - Field: value
+            - NaN
+    assert_count: 1
     assert_proto:
       pipeline:
         stages:
         - args:
-          - referenceValue: /books
+          - referenceValue: /errors
           name: collection
         - args:
           - functionValue:
               args:
-              - functionValue:
-                  args:
-                  - fieldReferenceValue: rating
-                  - doubleValue: NaN
-                  name: equal
-              name: not
+              - fieldReferenceValue: value
+              - doubleValue: NaN
+              name: equal
           name: where
   - description: testIsAbsent
     pipeline:

tests/system/test_pipeline_acceptance.py

@@ -353,6 +353,8 @@ def _parse_yaml_types(data):
             return parsed_datetime
         except ValueError:
             pass
+    if data == "NaN":
+        return float("NaN")
     return data