initwd Windows tests fixes (#1723)

Signed-off-by: eduzgun <emreduz00@gmail.com>
Signed-off-by: Emre Duzgun <100037959+eduzgun@users.noreply.github.com>

internal/configs/config_build.go

@@ -7,7 +7,7 @@ package configs
 
 import (
 	"fmt"
-	"path"
+	"path/filepath"
 	"sort"
 	"strings"
 
@@ -64,8 +64,8 @@ func buildTestModules(root *Config, walker ModuleWalker) hcl.Diagnostics {
 			//    - file: main.tftest.hcl, run: setup - test.main.setup
 			//    - file: tests/main.tftest.hcl, run: setup - test.tests.main.setup
 
-			dir := path.Dir(name)
+			dir := filepath.Dir(name)
-			base := path.Base(name)
+			base := filepath.Base(name)
 
 			path := addrs.Module{}
 			path = append(path, "test")
@@ -73,7 +73,6 @@ func buildTestModules(root *Config, walker ModuleWalker) hcl.Diagnostics {
 				path = append(path, strings.Split(dir, "/")...)
 			}
 			path = append(path, strings.TrimSuffix(base, ".tftest.hcl"), run.Name)
-
 			req := ModuleRequest{
 				Name:              run.Name,
 				Path:              path,

internal/initwd/from_module_test.go

@@ -9,6 +9,7 @@ import (
 	"context"
 	"os"
 	"path/filepath"
+	"runtime"
 	"strings"
 	"testing"
 
@@ -281,6 +282,11 @@ func TestDirFromModule_rel_submodules(t *testing.T) {
 	}
 	t.Cleanup(func() {
 		os.Chdir(oldDir)
+		// Trigger garbage collection to ensure that all open file handles are closed.
+		// This prevents TempDir RemoveAll cleanup errors on Windows.
+		if runtime.GOOS == "windows" {
+			runtime.GC()
+		}
 	})
 
 	hooks := &testInstallHooks{}

internal/initwd/module_install_test.go

@@ -61,7 +61,7 @@ func TestModuleInstaller(t *testing.T) {
 			Name:        "Install",
 			ModuleAddr:  "child_a.child_b",
 			PackageAddr: "",
-			LocalPath:   "child_a/child_b",
+			LocalPath:   filepath.Join("child_a", "child_b"),
 		},
 	}
 
@@ -393,7 +393,7 @@ func TestModuleInstaller_symlink(t *testing.T) {
 			Name:        "Install",
 			ModuleAddr:  "child_a.child_b",
 			PackageAddr: "",
-			LocalPath:   "child_a/child_b",
+			LocalPath:   filepath.Join("child_a", "child_b"),
 		},
 	}
 
@@ -764,7 +764,7 @@ func TestModuleInstaller_fromTests(t *testing.T) {
 	config, loadDiags := loader.LoadConfigWithTests(".", "tests")
 	assertNoDiagnostics(t, tfdiags.Diagnostics{}.Append(loadDiags))
 
-	if config.Module.Tests["tests/main.tftest.hcl"].Runs[0].ConfigUnderTest == nil {
+	if config.Module.Tests[filepath.Join("tests", "main.tftest.hcl")].Runs[0].ConfigUnderTest == nil {
 		t.Fatalf("should have loaded config into the relevant run block but did not")
 	}
 }

internal/modsdir/manifest.go

@@ -180,5 +180,7 @@ func (m Manifest) WriteSnapshotToDir(dir string) error {
 	if err != nil {
 		return err
 	}
+	defer w.Close()
+
 	return m.WriteSnapshot(w)
 }