Add JavaScript test for CXJ_Model object.
Fix NULL segv uncovered by test.
Change-Id: I0015e234852b48f00315771e725b94fda844eaa5
Reviewed-on: https://pdfium-review.googlesource.com/c/50312
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
diff --git a/testing/resources/javascript/xfa_specific/xfa_model.in b/testing/resources/javascript/xfa_specific/xfa_model.in
new file mode 100644
index 0000000..57a2427
--- /dev/null
+++ b/testing/resources/javascript/xfa_specific/xfa_model.in
@@ -0,0 +1,50 @@
+{{header}}
+{{include ../../xfa_catalog_1_0.fragment}}
+{{include ../../xfa_object_2_0.fragment}}
+{{include ../../xfa_preamble_3_0.fragment}}
+{{include ../../xfa_config_4_0.fragment}}
+{{object 5 0}} <<
+>>
+stream
+<template>
+ <subform layout="tb" name="my_doc">
+ <pageSet id="page" relation="orderedOccurrence">
+ <occur initial="1" max="1" min="1"/>
+ <pageArea id="Page1" name="Page1">
+ <occur max="1" min="1"/>
+ <contentArea h="100mm" w="200mm" x="0.25in" y="0.25in"/>
+ </pageArea>
+ <pageArea id="Page2" name="Page2">
+ <occur max="1" min="1"/>
+ <contentArea h="100mm" w="200mm" x="0.25in" y="0.25in"/>
+ </pageArea>
+ </pageSet>
+ <event activity="docReady" ref="$host">
+ <script contentType="application/x-javascript">
+ {{include ../expect.js}}
+ {{include ../property_test_helpers.js}}
+ testRIProperty(xfa.form, "aliasNode", undefined);
+ testRIProperty(xfa.form, "context", undefined);
+ expect("typeof xfa.form.clearErrorList", "function");
+ expect("typeof xfa.form.createNode", "function");
+ expect("typeof xfa.form.isCompatibleNS", "function");
+ expect("xfa.form.clearErrorList('args', 'ignored')", undefined);
+ expectError("xfa.form.createNode()");
+ expect("xfa.form.createNode('bogus')", undefined);
+ expect("xfa.form.createNode('template')", "[object XFAObject]");
+ expectError("xfa.form.isCompatibleNS()");
+ expect("xfa.form.isCompatibleNS('bogus')", false);
+ expect("xfa.form.isCompatibleNS('')", true);
+ </script>
+ </event>
+ </subform>
+</template>
+endstream
+endobj
+{{include ../../xfa_locale_6_0.fragment}}
+{{include ../../xfa_postamble_7_0.fragment}}
+{{include ../../xfa_pages_8_0.fragment}}
+{{xref}}
+{{trailer}}
+{{startxref}}
+%%EOF
diff --git a/testing/resources/javascript/xfa_specific/xfa_model_expected.txt b/testing/resources/javascript/xfa_specific/xfa_model_expected.txt
new file mode 100644
index 0000000..7613cca
--- /dev/null
+++ b/testing/resources/javascript/xfa_specific/xfa_model_expected.txt
@@ -0,0 +1,14 @@
+Alert: PASS: aliasNode = undefined
+Alert: PASS: aliasNode = undefined
+Alert: PASS: context = undefined
+Alert: PASS: context = undefined
+Alert: PASS: typeof xfa.form.clearErrorList = function
+Alert: PASS: typeof xfa.form.createNode = function
+Alert: PASS: typeof xfa.form.isCompatibleNS = function
+Alert: PASS: xfa.form.clearErrorList('args', 'ignored') = undefined
+Alert: PASS: xfa.form.createNode() threw XFAObject.createNode: Incorrect number of parameters passed to function.
+Alert: PASS: xfa.form.createNode('bogus') = null
+Alert: PASS: xfa.form.createNode('template') = [object XFAObject]
+Alert: PASS: xfa.form.isCompatibleNS() threw XFAObject.isCompatibleNS: Incorrect number of parameters passed to function.
+Alert: PASS: xfa.form.isCompatibleNS('bogus') = false
+Alert: PASS: xfa.form.isCompatibleNS('') = true
diff --git a/xfa/fxfa/parser/cxfa_node.cpp b/xfa/fxfa/parser/cxfa_node.cpp
index 3062890..9ebd303 100644
--- a/xfa/fxfa/parser/cxfa_node.cpp
+++ b/xfa/fxfa/parser/cxfa_node.cpp
@@ -1056,6 +1056,9 @@
CXFA_Node* CXFA_Node::CreateSamePacketNode(XFA_Element eType) {
CXFA_Node* pNode = m_pDocument->CreateNode(m_ePacket, eType);
+ if (!pNode)
+ return nullptr;
+
pNode->SetFlagAndNotify(XFA_NodeFlag_Initialized);
return pNode;
}