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package load_test
import (
"fmt"
"io"
"io/fs"
"os"
"path/filepath"
"strings"
"testing"
"github.com/go-quicktest/qt"
"golang.org/x/tools/txtar"
"cuelang.org/go/cue/build"
"cuelang.org/go/cue/cuecontext"
"cuelang.org/go/cue/errors"
"cuelang.org/go/cue/load"
"cuelang.org/go/internal/cuetxtar"
"cuelang.org/go/mod/modcache"
"cuelang.org/go/mod/modregistrytest"
)
func TestModuleLoadWithInvalidRegistryConfig(t *testing.T) {
// When there's an invalid registry configuration,
// we shouldn't get an error unless the module actually tries to use a registry.
t.Setenv("CUE_REGISTRY", "invalid}host:")
cacheDir := t.TempDir()
t.Setenv("CUE_CACHE_DIR", cacheDir)
insts := load.Instances([]string{"./imports"}, &load.Config{
Dir: filepath.Join("testdata", "testmod"),
})
qt.Assert(t, qt.IsNil(insts[0].Err))
// Check that nothing has been created in the cache directory (no
// side-effects).
entries, err := os.ReadDir(cacheDir)
qt.Assert(t, qt.IsNil(err))
qt.Assert(t, qt.HasLen(entries, 0))
// Now check that we do get an error when we try to use a module
// that requires module resolution.
testData, err := os.ReadFile(filepath.Join("testdata", "testfetch", "simple.txtar"))
qt.Assert(t, qt.IsNil(err))
cfg := &load.Config{
Dir: t.TempDir(),
Overlay: map[string]load.Source{},
}
a := txtar.Parse(testData)
for _, f := range a.Files {
if !strings.HasPrefix(f.Name, "_registry/") {
cfg.Overlay[filepath.Join(cfg.Dir, f.Name)] = load.FromBytes(f.Data)
}
}
insts = load.Instances([]string{"."}, cfg)
qt.Assert(t, qt.ErrorMatches(insts[0].Err, `import failed: .*main.cue:2:8: cannot find package "example.com@v0": cannot fetch example.com@v0.0.1: bad value for registry: invalid registry "invalid}host:": invalid host name "invalid}host:" in registry`))
// Try again with environment variables passed in Env.
// This is really just a smoke test to make sure that Env is
// passed through to the underlying modconfig call.
cfg.Env = []string{
"CUE_REGISTRY=invalid}host2:",
"CUE_CACHE_DIR=" + cacheDir,
}
insts = load.Instances([]string{"."}, cfg)
qt.Assert(t, qt.ErrorMatches(insts[0].Err, `import failed: .*main.cue:2:8: cannot find package "example.com@v0": cannot fetch example.com@v0.0.1: bad value for registry: invalid registry "invalid}host2:": invalid host name "invalid}host2:" in registry`))
}
func TestModuleFetch(t *testing.T) {
test := cuetxtar.TxTarTest{
Root: "./testdata/testfetch",
Name: "modfetch",
}
test.Run(t, func(t *cuetxtar.Test) {
tfs, err := txtar.FS(t.Archive)
qt.Assert(t, qt.IsNil(err))
rfs, err := fs.Sub(tfs, "_registry")
qt.Assert(t, qt.IsNil(err))
r, err := modregistrytest.New(rfs, "")
qt.Assert(t, qt.IsNil(err))
defer r.Close()
tmpDir := t.TempDir()
t.LoadConfig.Env = []string{
"CUE_CACHE_DIR=" + filepath.Join(tmpDir, "cache"),
"CUE_REGISTRY=" + r.Host() + "+insecure",
"CUE_CONFIG_DIR=" + filepath.Join(tmpDir, "config"),
}
// The fetched files are read-only, so testing fails when trying
// to remove them.
defer modcache.RemoveAll(tmpDir)
ctx := cuecontext.New()
// Note: avoid calling RawInstances with no arguments, because
// that loads the top level CUE files directly rather than just
// loading the package which is what we want.
insts := t.RawInstances(".")
if len(insts) != 1 {
t.Fatalf("wrong instance count; got %d want 1", len(insts))
}
inst := insts[0]
if inst.Err != nil {
errors.Print(t.Writer("error"), inst.Err, &errors.Config{
ToSlash: true,
Cwd: t.Dir,
})
return
}
writeInstanceInfo(t.T, t.Writer("instance-info"), inst, 0)
qt.Assert(t, qt.Not(qt.IsNil(inst.ModuleFile)))
qt.Assert(t, qt.Equals(inst.ModuleFile.QualifiedModule(), inst.Module))
qt.Assert(t, qt.Equals(inst.ModuleFile.Language.Version, "v0.9.0-main"))
v := ctx.BuildInstance(inst)
if err := v.Validate(); err != nil {
t.Fatal(err)
}
fmt.Fprintf(t.Writer("result"), "%v\n", v)
})
}
func writeInstanceInfo(t *testing.T, w io.Writer, inst *build.Instance, depth int) {
m := inst.Module
versionStr := ""
if m == "" {
m = "<none>"
qt.Assert(t, qt.IsNil(inst.ModuleFile))
} else {
qt.Assert(t, qt.Not(qt.IsNil(inst.ModuleFile)))
qt.Assert(t, qt.Equals(inst.ModuleFile.QualifiedModule(), inst.Module))
versionStr = fmt.Sprintf(" version=%v", inst.ModuleFile.Language.Version)
}
errStr := ""
if inst.Err != nil {
errStr = fmt.Sprintf(" err=%v", inst.Err)
}
fmt.Fprintf(w, "%s%s module=%s%s%s\n", strings.Repeat("\t", depth), inst.ImportPath, m, versionStr, errStr)
for _, inst := range inst.Imports {
writeInstanceInfo(t, w, inst, depth+1)
}
// Check that the source files have actually been parsed with
// the expected version.
for _, f := range inst.Files {
qt.Check(t, qt.Equals(f.LanguageVersion, inst.ModuleFile.Language.Version), qt.Commentf("pkg %v", inst.ImportPath))
}
}
func TestExplicitCUEFilesGetModuleVersion(t *testing.T) {
// When a file isn't part of a module, it will be parsed according
// to the current module version if there is one.
tfs, err := txtar.FS(txtar.Parse([]byte(`
-- something.cue --
package something
-- mod/cue.mod/module.cue --
module: "foo.test"
language: version: "v0.9.0-test"
-- mod/main.cue --
package main
`)))
qt.Assert(t, qt.IsNil(err))
dir := t.TempDir()
err = os.CopyFS(dir, tfs)
qt.Assert(t, qt.IsNil(err))
insts := load.Instances([]string{"../something.cue"}, &load.Config{
Dir: filepath.Join(dir, "mod"),
})
qt.Assert(t, qt.HasLen(insts, 1))
qt.Assert(t, qt.HasLen(insts[0].Files, 1))
qt.Assert(t, qt.Equals(insts[0].Files[0].LanguageVersion, "v0.9.0-test"))
}
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