140 lines
3.1 KiB
Go
140 lines
3.1 KiB
Go
package template
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import (
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"fmt"
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"io/ioutil"
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"os"
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"strings"
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"sync"
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"testing"
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r "github.com/hashicorp/terraform/helper/resource"
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"github.com/hashicorp/terraform/terraform"
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)
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var testProviders = map[string]terraform.ResourceProvider{
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"template": Provider(),
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}
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func TestTemplateRendering(t *testing.T) {
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var cases = []struct {
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vars string
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template string
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want string
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}{
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{`{}`, `ABC`, `ABC`},
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{`{a="foo"}`, `${a}`, `foo`},
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{`{a="hello"}`, `${replace(a, "ello", "i")}`, `hi`},
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{`{}`, `${1+2+3}`, `6`},
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}
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for _, tt := range cases {
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r.Test(t, r.TestCase{
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Providers: testProviders,
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Steps: []r.TestStep{
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r.TestStep{
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Config: testTemplateConfig(tt.template, tt.vars),
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Check: func(s *terraform.State) error {
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got := s.RootModule().Outputs["rendered"]
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if tt.want != got {
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return fmt.Errorf("template:\n%s\nvars:\n%s\ngot:\n%s\nwant:\n%s\n", tt.template, tt.vars, got, tt.want)
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}
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return nil
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},
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},
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},
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})
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}
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}
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// https://github.com/hashicorp/terraform/issues/2344
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func TestTemplateVariableChange(t *testing.T) {
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steps := []struct {
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vars string
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template string
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want string
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}{
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{`{a="foo"}`, `${a}`, `foo`},
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{`{b="bar"}`, `${b}`, `bar`},
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}
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var testSteps []r.TestStep
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for i, step := range steps {
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testSteps = append(testSteps, r.TestStep{
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Config: testTemplateConfig(step.template, step.vars),
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Check: func(i int, want string) r.TestCheckFunc {
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return func(s *terraform.State) error {
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got := s.RootModule().Outputs["rendered"]
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if want != got {
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return fmt.Errorf("[%d] got:\n%q\nwant:\n%q\n", i, got, want)
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}
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return nil
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}
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}(i, step.want),
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})
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}
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r.Test(t, r.TestCase{
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Providers: testProviders,
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Steps: testSteps,
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})
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}
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func TestValidateTemplateAttribute(t *testing.T) {
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file, err := ioutil.TempFile("", "testtemplate")
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if err != nil {
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t.Fatal(err)
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}
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file.WriteString("Hello world.")
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file.Close()
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defer os.Remove(file.Name())
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ws, es := validateTemplateAttribute(file.Name(), "test")
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if len(es) != 0 {
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t.Fatalf("Unexpected errors: %#v", es)
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}
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if len(ws) != 1 {
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t.Fatalf("Expected 1 warning, got %d", len(ws))
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}
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if !strings.Contains(ws[0], "Specifying a path directly is deprecated") {
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t.Fatalf("Expected warning about path, got: %s", ws[0])
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}
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}
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// This test covers a panic due to config.Func formerly being a
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// shared map, causing multiple template_file resources to try and
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// accessing it parallel during their lang.Eval() runs.
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//
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// Before fix, test fails under `go test -race`
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func TestTemplateSharedMemoryRace(t *testing.T) {
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var wg sync.WaitGroup
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for i := 0; i < 100; i++ {
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go func(wg sync.WaitGroup, t *testing.T, i int) {
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wg.Add(1)
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out, err := execute("don't panic!", map[string]interface{}{})
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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if out != "don't panic!" {
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t.Fatalf("bad output: %s", out)
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}
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wg.Done()
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}(wg, t, i)
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}
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wg.Wait()
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}
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func testTemplateConfig(template, vars string) string {
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return fmt.Sprintf(`
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resource "template_file" "t0" {
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template = "%s"
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vars = %s
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}
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output "rendered" {
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value = "${template_file.t0.rendered}"
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}`, template, vars)
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}
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