Add Project tests for command-line model filters

Author: tomasf

Sources/Cadova/Concrete Layer/Build/Project/CommandLineArguments.swift

@@ -1,13 +1,17 @@
 import Foundation
 
 internal struct CommandLineArguments {
-    static let current = CommandLineArguments()
+    @TaskLocal static var overriddenArguments: [String]? = nil
+
+    static var current: CommandLineArguments {
+        CommandLineArguments(arguments: overriddenArguments ?? CommandLine.arguments)
+    }
 
     /// Model names specified via `--model NAME` or `--model=NAME`, or empty if none were specified.
     let modelFilter: Set<String>
 
-    private init() {
-        let args = Array(CommandLine.arguments.dropFirst()) // drop executable path
+    init(arguments: [String]) {
+        let args = Array(arguments.dropFirst()) // drop executable path
         let flag = "--model"
         let prefix = "\(flag)="
         var filters: Set<String> = []

Tests/Tests/ProjectCommandLineFilterTests.swift

@@ -0,0 +1,104 @@
+import Foundation
+import Testing
+@testable import Cadova
+
+struct ProjectCommandLineFilterTests {
+    init() {
+        Platform.revealingFilesDisabled = true
+    }
+
+    @Test func `Project applies model filter from --model command line argument`() async throws {
+        let tempDir = FileManager.default.temporaryDirectory.appending(path: UUID().uuidString)
+        try FileManager.default.createDirectory(at: tempDir, withIntermediateDirectories: true)
+        defer { try? FileManager.default.removeItem(at: tempDir) }
+
+        await CommandLineArguments.$overriddenArguments.withValue(["CadovaTests", "--model", "Differential"]) {
+            await Project(root: tempDir) {
+                await Model("Differential") {
+                    Box(10)
+                }
+
+                await Model("Other") {
+                    Sphere(diameter: 10)
+                }
+            }
+        }
+
+        #expect(FileManager.default.fileExists(atPath: tempDir.appending(path: "Differential.3mf").path))
+        #expect(!FileManager.default.fileExists(atPath: tempDir.appending(path: "Other.3mf").path))
+    }
+
+    @Test func `Project applies repeated --model=value command line arguments`() async throws {
+        let tempDir = FileManager.default.temporaryDirectory.appending(path: UUID().uuidString)
+        try FileManager.default.createDirectory(at: tempDir, withIntermediateDirectories: true)
+        defer { try? FileManager.default.removeItem(at: tempDir) }
+
+        await CommandLineArguments.$overriddenArguments.withValue([
+            "CadovaTests",
+            "--model=Standalone",
+            "--model=GroupName/Differential"
+        ]) {
+            await Project(root: tempDir) {
+                await Model("Standalone") {
+                    Box(10)
+                }
+
+                await Model("Ignored") {
+                    Sphere(diameter: 10)
+                }
+
+                await Group("GroupName") {
+                    await Model("Differential") {
+                        Cylinder(diameter: 5, height: 10)
+                    }
+
+                    await Model("Other") {
+                        Circle(diameter: 10)
+                    }
+                }
+            }
+        }
+
+        #expect(FileManager.default.fileExists(atPath: tempDir.appending(path: "Standalone.3mf").path))
+        #expect(!FileManager.default.fileExists(atPath: tempDir.appending(path: "Ignored.3mf").path))
+        #expect(FileManager.default.fileExists(atPath: tempDir.appending(path: "GroupName/Differential.3mf").path))
+        #expect(!FileManager.default.fileExists(atPath: tempDir.appending(path: "GroupName/Other.3mf").path))
+    }
+
+    @Test func `Project applies mixed --model NAME and --model=NAME command line arguments`() async throws {
+        let tempDir = FileManager.default.temporaryDirectory.appending(path: UUID().uuidString)
+        try FileManager.default.createDirectory(at: tempDir, withIntermediateDirectories: true)
+        defer { try? FileManager.default.removeItem(at: tempDir) }
+
+        await CommandLineArguments.$overriddenArguments.withValue([
+            "CadovaTests",
+            "--model", "Standalone",
+            "--model=GroupName/Differential"
+        ]) {
+            await Project(root: tempDir) {
+                await Model("Standalone") {
+                    Box(10)
+                }
+
+                await Model("Ignored") {
+                    Sphere(diameter: 10)
+                }
+
+                await Group("GroupName") {
+                    await Model("Differential") {
+                        Cylinder(diameter: 5, height: 10)
+                    }
+
+                    await Model("Other") {
+                        Circle(diameter: 10)
+                    }
+                }
+            }
+        }
+
+        #expect(FileManager.default.fileExists(atPath: tempDir.appending(path: "Standalone.3mf").path))
+        #expect(!FileManager.default.fileExists(atPath: tempDir.appending(path: "Ignored.3mf").path))
+        #expect(FileManager.default.fileExists(atPath: tempDir.appending(path: "GroupName/Differential.3mf").path))
+        #expect(!FileManager.default.fileExists(atPath: tempDir.appending(path: "GroupName/Other.3mf").path))
+    }
+}