[tests] Add unit tests for the rootFolder variables

tests/nodes/test/printAttributes.py

@@ -0,0 +1,25 @@
+from meshroom.core import desc
+
+class PrintAttributes(desc.Node):
+    documentation="Test node printing the values of its attributes."
+    inputs = [
+        desc.File(
+            name="relativePathInput",
+            label="Relative Input File",
+            description="Relative path to the input file.",
+            value="${NODE_SOURCECODE_FOLDER}" + "/input.txt",
+        ),
+    ]
+
+    outputs = [
+        desc.File(
+            name="output",
+            label="Output",
+            description="Path to the output file.",
+            value="${NODE_CACHE_FOLDER}" + "file.out",
+        ),
+    ]
+
+    def processChunk(self, chunk):
+        print(chunk.node.relativePathInput.value)
+        print(chunk.node.output.value)

tests/test_nodeRootFolders.py

@@ -0,0 +1,152 @@
+# coding:utf-8
+
+from inspect import getfile
+import os
+from pathlib import Path
+from tempfile import mktemp
+
+from meshroom.core.graph import Graph, loadGraph
+from meshroom.core import desc, loadAllNodes, registerNodeType, unregisterNodeType
+from meshroom.core.node import Node
+import meshroom.core
+
+class TestNode(desc.Node):
+    inputs = []
+    outputs = []
+
+class PrintAttributes(desc.Node):
+    # Local "PrintAttributes" node, with a different source code folder as the one in nodes/test
+    documentation="Test node printing the values of its attributes."
+    inputs = [
+        desc.File(
+            name="relativePathInput",
+            label="Relative Input File",
+            description="Relative path to the input file.",
+            value="${NODE_SOURCECODE_FOLDER}" + "/input.txt",
+        ),
+    ]
+
+    outputs = [
+        desc.File(
+            name="output",
+            label="Output",
+            description="Path to the output file.",
+            value="${NODE_CACHE_FOLDER}" + "file.out",
+        ),
+    ]
+
+    def processChunk(self, chunk):
+        print(chunk.node.relativePathInput.value)
+        print(chunk.node.output.value)
+
+
+def test_registerSameNodeWithDifferentLocations():
+    """
+    Check that the nodes with the same description but registered at different locations have different evaluations
+    for the NODE_SOURCECODE_FOLDER value.
+    """
+    loadAllNodes(os.path.join(os.path.dirname(__file__), "nodes"))
+    assert "PrintAttributes" in meshroom.core.nodesDesc.keys()
+
+    # Node loaded from "nodes/test"
+    n1 = Node("PrintAttributes")
+    sourceFolderNode1 = n1.attribute("relativePathInput").getEvalValue()
+    assert sourceFolderNode1 == Path(getfile(meshroom.core.nodesDesc["PrintAttributes"])).parent.resolve().as_posix() + "/input.txt"
+    assert Path(sourceFolderNode1).parent.resolve().as_posix() == n1.rootFolder["NODE_SOURCECODE_FOLDER"]
+
+    # Unregister that node and replace it with the one from this file
+    unregisterNodeType(PrintAttributes)
+    assert "PrintAttributes" not in meshroom.core.nodesDesc.keys()
+
+    registerNodeType(PrintAttributes)
+    assert "PrintAttributes" in meshroom.core.nodesDesc.keys()
+
+    n2 = Node("PrintAttributes")
+    sourceFolderNode2 = n2.attribute("relativePathInput").getEvalValue()
+    assert sourceFolderNode2 == Path(getfile(meshroom.core.nodesDesc["PrintAttributes"])).parent.resolve().as_posix() + "/input.txt"
+    assert Path(sourceFolderNode2).parent.resolve().as_posix() == n2.rootFolder["NODE_SOURCECODE_FOLDER"]
+
+    assert sourceFolderNode1 is not sourceFolderNode2
+    unregisterNodeType(PrintAttributes)
+
+
+def test_reloadGraphWithDifferentNodeLocations():
+    """
+    Save a Graph with a node description registered at a specific location, unregister that node type, and register the
+    same description from a different location.
+    """
+    loadAllNodes(os.path.join(os.path.dirname(__file__), "nodes"))
+    assert "PrintAttributes" in meshroom.core.nodesDesc.keys()
+
+    graph = Graph('')
+    node = graph.addNewNode("PrintAttributes")
+    name = node.name
+
+    # Save graph in a file
+    filename = mktemp()
+    graph.save(filename)
+
+    sourceCodeFolderNode = node.attribute("relativePathInput").getEvalValue()
+    assert sourceCodeFolderNode == node.rootFolder["NODE_SOURCECODE_FOLDER"] + "/input.txt"
+
+    cacheFolderNode = node.attribute("output").value  # output attribute, already evaluated upon the node's creation
+    node._buildCmdVars()
+    assert desc.Node.internalFolder == node.rootFolder["NODE_CACHE_FOLDER"]
+    assert cacheFolderNode == desc.Node.internalFolder.format(**node._cmdVars) + "file.out"
+
+    # Delete the current graph
+    del graph
+
+    # Unregister that node and replace it with the one from this file
+    unregisterNodeType(meshroom.core.nodesDesc["PrintAttributes"])
+    assert "PrintAttributes" not in meshroom.core.nodesDesc.keys()
+
+    registerNodeType(PrintAttributes)
+    assert "PrintAttributes" in meshroom.core.nodesDesc.keys()
+
+    # Reload the graph
+    graph = loadGraph(filename)
+    assert graph
+    node = graph.node(name)
+    assert node.nodeType == "PrintAttributes"
+
+    # Check that the relative path is different for the input
+    assert node.attribute("relativePathInput").getEvalValue() != sourceCodeFolderNode
+
+    # Check that it is the same for the cache
+    assert node.attribute("output").value == cacheFolderNode
+
+    os.remove(filename)
+    unregisterNodeType(PrintAttributes)
+
+
+def test_updateRootFolders():
+    """
+    Check that root folders can be added and removed.
+    """
+    loadAllNodes(os.path.join(os.path.dirname(__file__), "nodes"))
+    assert "PrintAttributes" in meshroom.core.nodesDesc
+
+    node = Node("PrintAttributes")
+    assert len(node.rootFolder) == 2
+
+    # Add a new element in the list of root folders
+    node.rootFolder.update({"NODE_TEST_FOLDER": "/tmp/"})
+    assert len(node.rootFolder) == 3
+
+    attr = node.attribute("relativePathInput")
+
+    sourceCodeFolder = attr.getEvalValue()
+    attr.value = "${NODE_TEST_FOLDER}" + "input.txt"
+    assert attr.getEvalValue() == "/tmp/input.txt"
+    assert attr.getEvalValue() != sourceCodeFolder
+
+    # Remove the extra element in the list of root folders
+    node.rootFolder.pop("NODE_TEST_FOLDER", None)
+    assert len(node.rootFolder) == 2
+
+    assert attr.getEvalValue() != "/tmp/input.txt"
+    assert attr.getEvalValue() == attr.value
+
+    attr.value = attr.defaultValue()
+    assert attr.getEvalValue() == sourceCodeFolder