Fixed some of the unit-tests in common/ due to the changes made in {config,download}.go

config.go:
Fixed some issues related to the url scheme not being lowercased which broke some of the tests.

config_test.go:
Removed the UNC share test for \\host\share\file since SMB support has been moved to a different uri scheme.

download_test.go:
Explicitly set the CopyFile configuration option for all the unit-tests that test file copying capability.
Removed the UNC share testcase since it's under a different uri scheme now.
Modified the file:// UNC share testcase to explicitly test the smb:// uri.
Changed the incorrect t.Errorf calls to t.Logf so that the tests can pass.

common/config.go

@@ -6,6 +6,7 @@ import (
 	"path/filepath"
 	"strings"
 	"time"
+	"net/url"
 )
 
 // PackerKeyEnv is used to specify the key interval (delay) between keystrokes
@@ -50,7 +51,7 @@ func DownloadableURL(original string) (string, error) {
 	supported := []string{"file", "http", "https", "ftp", "smb"}
 	found := false
 	for _, s := range supported {
-		if strings.HasPrefix(original, s + "://") {
+		if strings.HasPrefix(strings.ToLower(original), s + "://") {
 			found = true
 			break
 		}
@@ -59,7 +60,15 @@ func DownloadableURL(original string) (string, error) {
 	// If it's properly prefixed with something we support, then we don't need
 	//	to make it a uri.
 	if found {
-		return original, nil
+		original = filepath.ToSlash(original)
+
+		// make sure that it can be parsed though..
+		uri,err := url.Parse(original)
+		if err != nil { return "", err }
+
+		uri.Scheme = strings.ToLower(uri.Scheme)
+
+		return uri.String(), nil
 	}
 
 	// If the file exists, then make it an absolute path

common/config_test.go

@@ -5,7 +5,6 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
-	"runtime"
 	"strings"
 	"testing"
 )
@@ -38,6 +37,21 @@ func TestChooseString(t *testing.T) {
 }
 
 func TestDownloadableURL(t *testing.T) {
+	// Invalid URL: has hex code in host
+	_, err := DownloadableURL("http://what%20.com")
+	if err == nil {
+		t.Fatalf("expected err : %s", err)
+	}
+
+	// Valid: http
+	u, err := DownloadableURL("HTTP://packer.io/path")
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
+
+	if u != "http://packer.io/path" {
+		t.Fatalf("bad: %s", u)
+	}
 
 	cases := []struct {
 		InputString string
@@ -154,11 +168,7 @@ func TestDownloadableURL_FilePaths(t *testing.T) {
 	}
 
 	tfPath = filepath.Clean(tfPath)
-
 	filePrefix := "file://"
-	if runtime.GOOS == "windows" {
-		filePrefix += "/"
-	}
 
 	// Relative filepath. We run this test in a func so that
 	// the defers run right away.
@@ -180,9 +190,7 @@ func TestDownloadableURL_FilePaths(t *testing.T) {
 			t.Fatalf("err: %s", err)
 		}
 
-		expected := fmt.Sprintf("%s%s",
-			filePrefix,
-			strings.Replace(tfPath, `\`, `/`, -1))
+		expected := "file://" + strings.Replace(tfPath, `\`, `/`, -1)
 		if u != expected {
 			t.Fatalf("unexpected: %#v != %#v", u, expected)
 		}

common/download_test.go

@@ -58,6 +58,7 @@ func TestDownloadClient_basic(t *testing.T) {
 	client := NewDownloadClient(&DownloadConfig{
 		Url:        ts.URL + "/basic.txt",
 		TargetPath: tf.Name(),
+		CopyFile:   true,
 	})
 
 	path, err := client.Get()
@@ -93,6 +94,7 @@ func TestDownloadClient_checksumBad(t *testing.T) {
 		TargetPath: tf.Name(),
 		Hash:       HashForType("md5"),
 		Checksum:   checksum,
+		CopyFile:   true,
 	})
 	if _, err := client.Get(); err == nil {
 		t.Fatal("should error")
@@ -117,6 +119,7 @@ func TestDownloadClient_checksumGood(t *testing.T) {
 		TargetPath: tf.Name(),
 		Hash:       HashForType("md5"),
 		Checksum:   checksum,
+        CopyFile:   true,
 	})
 	path, err := client.Get()
 	if err != nil {
@@ -147,6 +150,7 @@ func TestDownloadClient_checksumNoDownload(t *testing.T) {
 		TargetPath: "./test-fixtures/root/another.txt",
 		Hash:       HashForType("md5"),
 		Checksum:   checksum,
+		CopyFile:   true,
 	})
 	path, err := client.Get()
 	if err != nil {
@@ -185,6 +189,7 @@ func TestDownloadClient_resume(t *testing.T) {
 	client := NewDownloadClient(&DownloadConfig{
 		Url:        ts.URL,
 		TargetPath: tf.Name(),
+		CopyFile:   true,
 	})
 	path, err := client.Get()
 	if err != nil {
@@ -242,6 +247,7 @@ func TestDownloadClient_usesDefaultUserAgent(t *testing.T) {
 	config := &DownloadConfig{
 		Url:        server.URL,
 		TargetPath: tf.Name(),
+		CopyFile:   true,
 	}
 
 	client := NewDownloadClient(config)
@@ -273,6 +279,7 @@ func TestDownloadClient_setsUserAgent(t *testing.T) {
 		Url:        server.URL,
 		TargetPath: tf.Name(),
 		UserAgent:  "fancy user agent",
+		CopyFile:   true,
 	}
 
 	client := NewDownloadClient(config)
@@ -353,6 +360,7 @@ func TestDownloadFileUrl(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Unable to detect working directory: %s", err)
 	}
+	cwd = filepath.ToSlash(cwd)
 
 	// source_path is a file path and source is a network path
 	sourcePath := fmt.Sprintf("%s/test-fixtures/fileurl/%s", cwd, "cake")
@@ -455,12 +463,10 @@ func TestFileUriTransforms(t *testing.T) {
 	// ./relative/path -> ./relative/path
 	// /absolute/path -> /absolute/path
 	// c:/windows/absolute -> c:/windows/absolute
-	// \\host/sharename/file -> \\host/sharename/file
 	testcases := []string{
 		"./%s",
 		cwd + "/%s",
 		volume + cwd + "/%s",
-		"\\\\" + host + "/" + share + "/" + cwd[1:] + "/%s",
 	}
 
 	// all regular slashed testcases
@@ -471,19 +477,18 @@ func TestFileUriTransforms(t *testing.T) {
 		if err != nil {
 			t.Errorf("Unable to transform uri '%s' into a path : %v", uri, err)
 		}
-		t.Errorf("TestFileUriTransforms : Result Path '%s'", res)
+		t.Logf("TestFileUriTransforms : Result Path '%s'", res)
 	}
 
 	// ...and finally the oddball windows native path
-	// \\host\sharename\file -> \\host/sharename/file
-	testpath_native := filepath.FromSlash(testpath)
-	testcase_native := "\\\\" + host + "\\" + share + "\\" + filepath.FromSlash(cwd[1:]) + "\\%s"
-	uri := "file://" + fmt.Sprintf(testcase_native, testpath_native)
+	// smb://host/sharename/file -> \\host\sharename\file
+	testcase := host + "/" + share + "/" + cwd[1:] + "/%s"
+	uri := "smb://" + fmt.Sprintf(testcase, testpath)
 	t.Logf("TestFileUriTransforms : Trying Uri '%s'", uri)
 	res,err := SimulateFileUriDownload(t, uri)
 	if err != nil {
 		t.Errorf("Unable to transform uri '%s' into a path", uri)
 		return
 	}
-	t.Errorf("TestFileUriTransforms : Result Path '%s'", res)
+	t.Logf("TestFileUriTransforms : Result Path '%s'", res)
 }