TBR: ref: namespace_browser: Move v.io/x/ref/tools to v.io/x/ref/cmd.
This is part of the v.io reorganization. cmd is the standard
go directory for commandline binaries. We actually have two:
cmd for regular command line tools, and services for servers.
Note, I am temporarily duplicating the vdl tool for ease of transition.
MultiPart: 4/8
Change-Id: I1880ea23f643b60d315b14e2695c63932fe99625
diff --git a/cmd/vdl/vdl_test.go b/cmd/vdl/vdl_test.go
new file mode 100644
index 0000000..93b2f9d
--- /dev/null
+++ b/cmd/vdl/vdl_test.go
@@ -0,0 +1,61 @@
+package main
+
+import (
+ "bytes"
+ "fmt"
+ "io/ioutil"
+ "os"
+ "path/filepath"
+ "strings"
+ "testing"
+)
+
+const (
+ testDir = "../../lib/vdl/testdata/base"
+ outPkgPath = "v.io/x/ref/lib/vdl/testdata/base"
+)
+
+// Compares generated VDL files against the copy in the repo.
+func TestVDLGenerator(t *testing.T) {
+ // Setup the vdl command-line.
+ cmdVDL.Init(nil, os.Stdout, os.Stderr)
+ // Use vdl to generate Go code from input, into a temporary directory.
+ outDir, err := ioutil.TempDir("", "vdltest")
+ if err != nil {
+ t.Fatalf("TempDir() failed: %v", err)
+ }
+ defer os.RemoveAll(outDir)
+ // TODO(toddw): test the generated java and javascript files too.
+ outOpt := fmt.Sprintf("--go_out_dir=%s", outDir)
+ if err := cmdVDL.Execute([]string{"generate", "--lang=go", outOpt, testDir}); err != nil {
+ t.Fatalf("Execute() failed: %v", err)
+ }
+ // Check that each *.vdl.go file in the testDir matches the generated output.
+ entries, err := ioutil.ReadDir(testDir)
+ if err != nil {
+ t.Fatalf("ReadDir(%v) failed: %v", testDir, err)
+ }
+ numEqual := 0
+ for _, entry := range entries {
+ if !strings.HasSuffix(entry.Name(), ".vdl.go") {
+ continue
+ }
+ testFile := filepath.Join(testDir, entry.Name())
+ testBytes, err := ioutil.ReadFile(testFile)
+ if err != nil {
+ t.Fatalf("ReadFile(%v) failed: %v", testFile, err)
+ }
+ outFile := filepath.Join(outDir, outPkgPath, entry.Name())
+ outBytes, err := ioutil.ReadFile(outFile)
+ if err != nil {
+ t.Fatalf("ReadFile(%v) failed: %v", outFile, err)
+ }
+ if !bytes.Equal(outBytes, testBytes) {
+ t.Fatalf("GOT:\n%v\n\nWANT:\n%v\n", string(outBytes), string(testBytes))
+ }
+ numEqual++
+ }
+ if numEqual == 0 {
+ t.Fatalf("testDir %s has no golden files *.vdl.go", testDir)
+ }
+}
