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denoland-deno/deno_dir_test.go
2018-06-05 10:07:40 +02:00

46 lines
1,004 B
Go

// Copyright 2018 Ryan Dahl <ry@tinyclouds.org>
// All rights reserved. MIT License.
package deno
import (
"io/ioutil"
"testing"
)
func SetCacheDirForTest(prefix string) {
dir, err := ioutil.TempDir("", prefix)
check(err)
CacheDir = dir
}
func TestLoadOutputCodeCache(t *testing.T) {
SetCacheDirForTest("TestLoadOutputCodeCache")
filename := "Hello.ts"
sourceCodeBuf := []byte("1+2")
cacheFn := CacheFileName(filename, sourceCodeBuf)
outputCode, err := LoadOutputCodeCache(filename, sourceCodeBuf)
if err != nil {
t.Fatalf(err.Error())
}
if outputCode != "" {
t.Fatalf("Expected empty outputCode but got <<%s>>", outputCode)
}
// Now let's write to the cache file
err = ioutil.WriteFile(cacheFn, []byte("blah"), 0700)
if err != nil {
t.Fatalf(err.Error())
}
// Try it again.
outputCode, err = LoadOutputCodeCache(filename, sourceCodeBuf)
if err != nil {
t.Fatalf(err.Error())
}
if outputCode != "blah" {
t.Fatalf("Bad outputCode but got <<%s>>", outputCode)
}
}