From d24d8de483ce7a73a918ebc93be8c21aabeac971 Mon Sep 17 00:00:00 2001
From: Shuheng Liu <shuheng.liu@intersystems.com>
Date: Mon, 13 Jan 2025 23:53:51 -0500
Subject: [PATCH] test: add unit test cases for merging json

---
 tests/unit_tests/Test/PM/Unit/MergeJSON.cls | 118 ++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 tests/unit_tests/Test/PM/Unit/MergeJSON.cls

diff --git a/tests/unit_tests/Test/PM/Unit/MergeJSON.cls b/tests/unit_tests/Test/PM/Unit/MergeJSON.cls
new file mode 100644
index 00000000..e19c8d3e
--- /dev/null
+++ b/tests/unit_tests/Test/PM/Unit/MergeJSON.cls
@@ -0,0 +1,118 @@
+Class Test.PM.Unit.MergeJSON Extends %UnitTest.TestCase
+{
+
+XData AllCases [ MimeType = application/json ]
+{
+[
+  {
+    "dest": { "a": 1, "b": 2 },
+    "src": { "b": 3, "c": 4 },
+    "expected": { "a": 1, "b": 3, "c": 4 }
+  },
+  {
+    "dest": { "x": 10 },
+    "src": { "y": 20 },
+    "expected": { "x": 10, "y": 20 }
+  },
+  {
+    "dest": {},
+    "src": { "key": "value" },
+    "expected": { "key": "value" }
+  },
+  {
+    "dest": { "nested": { "a": 1 } },
+    "src": { "nested": { "b": 2 } },
+    "expected": { "nested": { "a":1, "b": 2 } }
+  },
+  {
+    "dest": { "a": 1, "b": { "c": 3 } },
+    "src": { "b": { "d": 4 }, "e": 5 },
+    "expected": { "a": 1, "b": { "c":3, "d": 4 }, "e": 5 }
+  },
+  {
+    "dest": { "a": null },
+    "src": { "a": 1 },
+    "expected": { "a": 1 }
+  },
+  {
+    "dest": { "arr": [ 1, 2, 3 ] },
+    "src": { "arr": [ 4, 5 ] },
+    "expected": { "arr": [ 4, 5, 3 ] }
+  },
+  {
+    "dest": { "a": [ 1, 2 ] },
+    "src": { "b": [ 3, 4 ] },
+    "expected": { "a": [ 1, 2 ], "b": [ 3, 4 ] }
+  },
+  {
+    "dest": { "a": [ 1, 2 ], "b": { "c": [ 3, 4 ] } },
+    "src": { "b": { "c": [ 5, 6 ] }, "d": [ 7, 8 ] },
+    "expected": { "a": [ 1, 2 ], "b": { "c": [ 5, 6 ] }, "d": [ 7, 8 ] }
+  },
+  {
+    "dest": { "a": [ 1, 2 ], "b": [ 3, 4 ] },
+    "src": { "a": [ 5, 6 ] },
+    "expected": { "a": [ 5, 6 ], "b": [ 3, 4 ] }
+  },
+  {
+    "dest": { "list": [] },
+    "src": { "list": [ 1, 2, 3 ] },
+    "expected": { "list": [ 1, 2, 3 ] }
+  },
+  {
+    "dest": { "x": [ null, 2 ] },
+    "src": { "x": [ 1, null ] },
+    "expected": { "x": [ 1, null ] }
+  }
+]
+}
+
+Method TestMergeDynamicObjects()
+{
+    Set xdataID="Test.PM.Unit.MergeJSON||AllCases"
+    Set compiledXdata=##class(%Dictionary.CompiledXData).%OpenId(xdataID)
+    Set stream=compiledXdata.Data
+    Do $$$AssertTrue($IsObject(stream))
+
+    Set allTestCases = [].%FromJSON(stream)
+    Set iter = allTestCases.%GetIterator()
+    While iter.%GetNext(.key, .case) {
+        Do ##class(%IPM.General.InstallTimeConfig).MergeDynamicObjects(case.dest, case.src)
+        If '$$$AssertTrue(..Equal(case.dest, case.expected)) {
+            Set message = $$$FormatText("Failed test case: %1, output = %2", case.%ToJSON(), case.dest.%ToJSON())
+            Do $$$LogMessage(message)
+        }
+    }
+}
+
+ClassMethod Equal(j1 As %Any, j2 As %Any) As %Boolean
+{
+    Quit ..IsSubset(j1, j2) && ..IsSubset(j2, j1)
+}
+
+ClassMethod IsSubset(j1 As %Any, j2 As %Any) As %Boolean
+{
+    If j1 = j2 {
+        Return 1
+    }
+    If ('$IsObject(j1)) || ('$IsObject(j2)) {
+        Return 0
+    }
+    If $classname(j1) '= $classname(j2) {
+        Return 0
+    }
+
+    Set iter = j1.%GetIterator()
+    While iter.%GetNext(.key, .value1, .type1) {
+        If j2.%GetTypeOf(key) '= type1 {
+            Return 0
+        }
+        If '..IsSubset(value1, j2.%Get(key)) {
+            Return 0
+        }
+    }
+
+    Return 1
+}
+
+}