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moby--moby/builder/parser/parser_test.go

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package parser
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"testing"
)
const testDir = "testfiles"
const negativeTestDir = "testfiles-negative"
func getDirs(t *testing.T, dir string) []string {
f, err := os.Open(dir)
if err != nil {
t.Fatal(err)
}
defer f.Close()
dirs, err := f.Readdirnames(0)
if err != nil {
t.Fatal(err)
}
return dirs
}
func TestTestNegative(t *testing.T) {
for _, dir := range getDirs(t, negativeTestDir) {
dockerfile := filepath.Join(negativeTestDir, dir, "Dockerfile")
df, err := os.Open(dockerfile)
if err != nil {
t.Fatalf("Dockerfile missing for %s: %v", dir, err)
}
_, err = Parse(df)
if err == nil {
t.Fatalf("No error parsing broken dockerfile for %s", dir)
}
df.Close()
}
}
func TestTestData(t *testing.T) {
for _, dir := range getDirs(t, testDir) {
dockerfile := filepath.Join(testDir, dir, "Dockerfile")
resultfile := filepath.Join(testDir, dir, "result")
df, err := os.Open(dockerfile)
if err != nil {
t.Fatalf("Dockerfile missing for %s: %v", dir, err)
}
defer df.Close()
ast, err := Parse(df)
if err != nil {
t.Fatalf("Error parsing %s's dockerfile: %v", dir, err)
}
content, err := ioutil.ReadFile(resultfile)
if err != nil {
t.Fatalf("Error reading %s's result file: %v", dir, err)
}
if ast.Dump()+"\n" != string(content) {
fmt.Fprintln(os.Stderr, "Result:\n"+ast.Dump())
fmt.Fprintln(os.Stderr, "Expected:\n"+string(content))
t.Fatalf("%s: AST dump of dockerfile does not match result", dir)
}
}
}