Follow-up fixes for image tests.

- Fix ARG syntax in Dockerfiles.
- Fix curl commands in Dockerfiles.
- Fix some paths in proctor binaries.
- Check error from Walk in search helper.

PiperOrigin-RevId: 269641686

test/runtimes/images/Dockerfile_nodejs12.4.0

@@ -12,8 +12,8 @@ RUN apt-get update && apt-get install -y \
   python
 
 WORKDIR /root
-ARG VERSION v12.4.0
-RUN curl https://nodejs.org/dist/${VERSION}/node-${VERSION}.tar.gz
+ARG VERSION=v12.4.0
+RUN curl -o node-${VERSION}.tar.gz https://nodejs.org/dist/${VERSION}/node-${VERSION}.tar.gz
 RUN tar -zxf node-${VERSION}.tar.gz
 
 WORKDIR /root/node-${VERSION}

test/runtimes/images/Dockerfile_php7.3.6

@@ -15,8 +15,8 @@ RUN apt-get update && apt-get install -y \
   re2c
 
 WORKDIR /root
-ARG VERSION 7.3.6
-RUN curl -o https://www.php.net/distributions/php-${VERSION}.tar.gz
+ARG VERSION=7.3.6
+RUN curl -o php-${VERSION}.tar.gz https://www.php.net/distributions/php-${VERSION}.tar.gz
 RUN tar -zxf php-${VERSION}.tar.gz
 
 WORKDIR /root/php-${VERSION}

test/runtimes/images/Dockerfile_python3.7.3

@@ -18,7 +18,7 @@ RUN apt-get update && apt-get install -y \
 
 # Use flags -LJO to follow the html redirect and download .tar.gz.
 WORKDIR /root
-ARG VERSION 3.7.3
+ARG VERSION=3.7.3
 RUN curl -LJO https://github.com/python/cpython/archive/v${VERSION}.tar.gz
 RUN tar -zxf cpython-${VERSION}.tar.gz
 

test/runtimes/images/proctor/java.go

@@ -26,7 +26,7 @@ import (
 var javaExclDirs = regexp.MustCompile(`(^(sun\/security)|(java\/util\/stream)|(java\/time)| )`)
 
 // Location of java tests.
-const javaTestDir = "/root/test"
+const javaTestDir = "/root/test/jdk"
 
 // javaRunner implements TestRunner for Java.
 type javaRunner struct{}

test/runtimes/images/proctor/nodejs.go

@@ -41,6 +41,6 @@ func (nodejsRunner) ListTests() ([]string, error) {
 
 // TestCmd implements TestRunner.TestCmd.
 func (nodejsRunner) TestCmd(test string) *exec.Cmd {
-	args := []string{filepath.Join(nodejsTestDir, "tools", "test.py"), test}
+	args := []string{filepath.Join("tools", "test.py"), test}
 	return exec.Command("/usr/bin/python", args...)
 }

test/runtimes/images/proctor/proctor.go

@@ -100,6 +100,10 @@ func search(root string, testFilter *regexp.Regexp) ([]string, error) {
 	var testSlice []string
 
 	err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
 		name := filepath.Base(path)
 
 		if info.IsDir() || !testFilter.MatchString(name) {
@@ -113,7 +117,6 @@ func search(root string, testFilter *regexp.Regexp) ([]string, error) {
 		testSlice = append(testSlice, relPath)
 		return nil
 	})
-
 	if err != nil {
 		return nil, fmt.Errorf("walking %q: %v", root, err)
 	}