1 files changed, 117 insertions, 0 deletions
diff --git a/gopls/internal/span/uri_test.go b/gopls/internal/span/uri_test.go
new file mode 100644
index 000000000..e99043785
--- /dev/null
+++ b/gopls/internal/span/uri_test.go
@@ -0,0 +1,117 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !windows
+// +build !windows
+
+package span_test
+
+import (
+	"testing"
+
+	"golang.org/x/tools/gopls/internal/span"
+)
+
+// TestURI tests the conversion between URIs and filenames. The test cases
+// include Windows-style URIs and filepaths, but we avoid having OS-specific
+// tests by using only forward slashes, assuming that the standard library
+// functions filepath.ToSlash and filepath.FromSlash do not need testing.
+func TestURIFromPath(t *testing.T) {
+	for _, test := range []struct {
+		path, wantFile string
+		wantURI        span.URI
+	}{
+		{
+			path:     ``,
+			wantFile: ``,
+			wantURI:  span.URI(""),
+		},
+		{
+			path:     `C:/Windows/System32`,
+			wantFile: `C:/Windows/System32`,
+			wantURI:  span.URI("file:///C:/Windows/System32"),
+		},
+		{
+			path:     `C:/Go/src/bob.go`,
+			wantFile: `C:/Go/src/bob.go`,
+			wantURI:  span.URI("file:///C:/Go/src/bob.go"),
+		},
+		{
+			path:     `c:/Go/src/bob.go`,
+			wantFile: `C:/Go/src/bob.go`,
+			wantURI:  span.URI("file:///C:/Go/src/bob.go"),
+		},
+		{
+			path:     `/path/to/dir`,
+			wantFile: `/path/to/dir`,
+			wantURI:  span.URI("file:///path/to/dir"),
+		},
+		{
+			path:     `/a/b/c/src/bob.go`,
+			wantFile: `/a/b/c/src/bob.go`,
+			wantURI:  span.URI("file:///a/b/c/src/bob.go"),
+		},
+		{
+			path:     `c:/Go/src/bob george/george/george.go`,
+			wantFile: `C:/Go/src/bob george/george/george.go`,
+			wantURI:  span.URI("file:///C:/Go/src/bob%20george/george/george.go"),
+		},
+	} {
+		got := span.URIFromPath(test.path)
+		if got != test.wantURI {
+			t.Errorf("URIFromPath(%q): got %q, expected %q", test.path, got, test.wantURI)
+		}
+		gotFilename := got.Filename()
+		if gotFilename != test.wantFile {
+			t.Errorf("Filename(%q): got %q, expected %q", got, gotFilename, test.wantFile)
+		}
+	}
+}
+
+func TestURIFromURI(t *testing.T) {
+	for _, test := range []struct {
+		inputURI, wantFile string
+		wantURI            span.URI
+	}{
+		{
+			inputURI: `file:///c:/Go/src/bob%20george/george/george.go`,
+			wantFile: `C:/Go/src/bob george/george/george.go`,
+			wantURI:  span.URI("file:///C:/Go/src/bob%20george/george/george.go"),
+		},
+		{
+			inputURI: `file:///C%3A/Go/src/bob%20george/george/george.go`,
+			wantFile: `C:/Go/src/bob george/george/george.go`,
+			wantURI:  span.URI("file:///C:/Go/src/bob%20george/george/george.go"),
+		},
+		{
+			inputURI: `file:///path/to/%25p%25ercent%25/per%25cent.go`,
+			wantFile: `/path/to/%p%ercent%/per%cent.go`,
+			wantURI:  span.URI(`file:///path/to/%25p%25ercent%25/per%25cent.go`),
+		},
+		{
+			inputURI: `file:///C%3A/`,
+			wantFile: `C:/`,
+			wantURI:  span.URI(`file:///C:/`),
+		},
+		{
+			inputURI: `file:///`,
+			wantFile: `/`,
+			wantURI:  span.URI(`file:///`),
+		},
+		{
+			inputURI: `file://wsl%24/Ubuntu/home/wdcui/repo/VMEnclaves/cvm-runtime`,
+			wantFile: `/wsl$/Ubuntu/home/wdcui/repo/VMEnclaves/cvm-runtime`,
+			wantURI:  span.URI(`file:///wsl$/Ubuntu/home/wdcui/repo/VMEnclaves/cvm-runtime`),
+		},
+	} {
+		got := span.URIFromURI(test.inputURI)
+		if got != test.wantURI {
+			t.Errorf("NewURI(%q): got %q, expected %q", test.inputURI, got, test.wantURI)
+		}
+		gotFilename := got.Filename()
+		if gotFilename != test.wantFile {
+			t.Errorf("Filename(%q): got %q, expected %q", got, gotFilename, test.wantFile)
+		}
+	}
+}