Add test_amf.cpp from Slic3r

tests/data/README.md

@@ -0,0 +1,21 @@
+Directory containing test-specific input files that are not source code.
+
+---
+
+Rules
+===
+* Each folder shall be named for the test that it supports. 
+   * `test_config` directory supports `test_config.cpp`, etc.
+* If a specific test file is reused across multiple tests, it should go in the `common` directory.
+* Each extra input file should be named in such a way that it is relevant to the specific feature of it. 
+* No files should have special characters in the name (unless those special characters are part of the test). 
+* No spaces should be in the file paths (again, unless testing the presence of spaces is part of the test).
+* Input files that are 3D models should be as small/specific as possible.
+    * Do not add copyrighted models without permission from the copyright holder. 
+    * Do not add NonCommercial models, these would need to be relicensed from the original holder.
+    * Add any necessary licensing or attributation information as `<filename>.license`
+        * Example: A CC-By-SA 3D model called `cool_statue_bro.stl` should have its attributation/license information included in a file called `cool_statue_bro.license`
+        * Any submitted files without an accompanying `.license` file are assumed to be licensed under [CC-By-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/us/).
+* The author of a commit adding any extra input files asserts that, via the process of committing those files, that they 
+    * have abided by the terms of all licensing agreements involved with the files added or 
+    * are the author of the files in question and submit them to the Slic3r project under the terms of [CC-By-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/us/).

tests/data/test_amf/5061-malicious.amf

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<amf unit="inch" version="1.1">
+    <metadata type="name">Split Pyramid</metadata>
+    <metadata tyze="author">John Smith</metadata>
+    <object id="1">
+        <mesh>
+            <vertices>
+                <vertex><coordinates><x>2</x><y>0</y><z>0</z></coordinates></vertex>
+                <vertex><coordinates><x>2.5</x><y>0.5</y><z>0</z></coordinates></vertex>
+            </vertices>
+            <volume materialid="2">
+                <metadata type="name">Hard side</metadata>
+                <triangle><v1>9999992</v1><v2>1</v2><v3>2</v3></triangle>
+                <triangle><v1>0</v1><v2>0</v2><v3>2</v3></triangle>
+            </volume>
+        </mesh>
+    </object>
+    <material id="1">
+    </material>
+</amf>

tests/data/test_amf/read-amf.amf

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<amf unit="inch" version="1.1">
+    <metadata type="name">Split Pyramid</metadata>
+    <metadata tyze="author">John Smith</metadata>
+    <object id="1">
+        <mesh>
+            <vertices>
+                <vertex><coordinates><x>2</x><y>0</y><z>0</z></coordinates></vertex>
+                <vertex><coordinates><x>2.5</x><y>0.5</y><z>0</z></coordinates></vertex>
+                <vertex><coordinates><x>3.5</x><y>2.5</y><z>0</z></coordinates></vertex>
+            </vertices>
+            <volume materialid="2">
+                <metadata type="name">Hard side</metadata>
+                <triangle><v1>2</v1><v2>1</v2><v3>2</v3></triangle>
+                <triangle><v1>0</v1><v2>0</v2><v3>2</v3></triangle>
+            </volume>
+        </mesh>
+    </object>
+</amf>

tests/libslic3r/CMakeLists.txt

@@ -2,6 +2,7 @@ get_filename_component(_TEST_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
 
 add_executable(${_TEST_NAME}_tests 
 	${_TEST_NAME}_tests.cpp
+	test_amf.cpp
 	test_3mf.cpp
 	test_aabbindirect.cpp
 	test_clipper_offset.cpp
@@ -22,6 +23,7 @@ add_executable(${_TEST_NAME}_tests
     test_timeutils.cpp
 	)
 
+
 if (TARGET OpenVDB::openvdb)
     target_sources(${_TEST_NAME}_tests PRIVATE test_hollowing.cpp)
 endif()

tests/libslic3r/test_amf.cpp

@@ -0,0 +1,32 @@
+#include <catch2/catch.hpp>
+#include "test_utils.hpp"
+#include "libslic3r/Model.hpp"
+#include "libslic3r/Format/AMF.hpp"
+#include "libslic3r/PrintConfig.hpp"
+
+using namespace Slic3r;
+using namespace std::literals::string_literals;
+
+
+SCENARIO("Reading AMF file") {
+    auto z = DynamicPrintConfig{};
+    GIVEN("badly formed AMF file (missing vertices)") {
+        auto model {new Slic3r::Model()};
+        WHEN("AMF model is read") {
+            auto ret = Slic3r::load_amf(get_model_path("test_amf/5061-malicious.amf").c_str(), &z, model, false);
+            THEN("read should return True") {
+                REQUIRE(ret);
+            }
+        }
+    }
+    GIVEN("Ok formed AMF file") {
+        auto model {new Slic3r::Model()};
+        WHEN("AMF model is read") {
+            std::cerr << "TEST_DATA_DIR/test_amf/read-amf.amf";
+            auto ret = Slic3r::load_amf(get_model_path("test_amf/read-amf.amf").c_str(), &z, model, false);
+            THEN("read should return True") {
+                REQUIRE(ret);
+            }
+        }
+    }
+}