PR: Test execute explain - limit node

tests/integration/explain/execute/with_limit_test.go

@@ -0,0 +1,139 @@
+// Copyright 2022 Democratized Data Foundation
+//
+// Use of this software is governed by the Business Source License
+// included in the file licenses/BSL.txt.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0, included in the file
+// licenses/APL.txt.
+
+package test_explain_execute
+
+import (
+	"testing"
+
+	testUtils "github.com/sourcenetwork/defradb/tests/integration"
+)
+
+func TestExecuteExplainRequestWithBothLimitAndOffsetOnParent(t *testing.T) {
+	test := testUtils.TestCase{
+
+		Description: "Explain (execute) with both limit and offset on parent.",
+
+		Actions: []any{
+			gqlSchemaExecuteExplain(),
+
+			// Books
+			create3BookDocuments(),
+
+			testUtils.Request{
+				Request: `query @explain(type: execute) {
+					Book(limit: 1, offset: 1) {
+						name
+					}
+				}`,
+
+				Results: []dataMap{
+					{
+						"explain": dataMap{
+							"executionSuccess":   true,
+							"planExecutionCount": 2,
+							"sizeOfResult":       1,
+							"selectTopNode": dataMap{
+								"limitNode": dataMap{
+									"timesLimitNodeExecuted": uint64(2),
+									"selectNode": dataMap{
+										"scanNode": dataMap{
+											"timesScanned":            uint64(2),
+											"attemptsToFetchDocument": uint64(2),
+											"documentsMatched":        uint64(2),
+										},
+										"timesDockeyDidNotMatch":  uint64(0),
+										"timesPassedTopFilter":    uint64(2),
+										"timesSelectNodeExecuted": uint64(2),
+									},
+								},
+							},
+							"actualResult": []dataMap{
+								{
+									"name": "A Time for Mercy",
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	executeTestCase(t, test)
+}
+
+func TestExecuteExplainRequestWithBothLimitAndOffsetOnParentAndLimitOnChild(t *testing.T) {
+	test := testUtils.TestCase{
+
+		Description: "Explain (execute) with both limit and offset on parent and limit on child.",
+
+		Actions: []any{
+			gqlSchemaExecuteExplain(),
+
+			// Articles
+			create3ArticleDocuments(),
+
+			// Authors
+			create2AuthorDocuments(),
+
+			testUtils.Request{
+				Request: `query @explain(type: execute) {
+					Author(limit: 1, offset: 1) {
+						name
+						articles(limit: 1) {
+							name
+						}
+					}
+				}`,
+
+				Results: []dataMap{
+					{
+						"explain": dataMap{
+							"executionSuccess":   true,
+							"planExecutionCount": 2,
+							"sizeOfResult":       1,
+							"selectTopNode": dataMap{
+								"limitNode": dataMap{
+									"timesLimitNodeExecuted": uint64(2),
+									"selectNode": dataMap{
+										"typeIndexJoin": dataMap{
+											"timesTypeIndexJoinNodeExecuted": uint64(2),
+											"scanNode": dataMap{
+												"timesScanned":            uint64(2),
+												"attemptsToFetchDocument": uint64(2),
+												"documentsMatched":        uint64(2),
+											},
+										},
+										"timesDockeyDidNotMatch":  uint64(0),
+										"timesPassedTopFilter":    uint64(2),
+										"timesSelectNodeExecuted": uint64(2),
+									},
+								},
+							},
+							"actualResult": []dataMap{
+								{
+									"name": "John Grisham",
+									"articles": []dataMap{
+										{
+											"name": "After Guantánamo, Another Injustice",
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	executeTestCase(t, test)
+}