helmfile/app_test.go

109 lines
2.6 KiB
Go

package main
import (
"fmt"
"github.com/roboll/helmfile/helmexec"
"github.com/roboll/helmfile/state"
"os"
"testing"
)
// See https://github.com/roboll/helmfile/issues/193
func TestFindAndIterateOverDesiredStates(t *testing.T) {
absPaths := map[string]string{
".": "/path/to",
"/path/to/helmfile.d": "/path/to/helmfile.d",
}
dirs := map[string]bool{
"helmfile.d": true,
}
files := map[string]string{
"helmfile.yaml": `
helmfiles:
- helmfile.d/a*.yaml
- helmfile.d/b*.yaml
`,
"/path/to/helmfile.d/a1.yaml": `
releases:
- name: zipkin
chart: stable/zipkin
`,
"/path/to/helmfile.d/a2.yaml": `
releases:
- name: prometheus
chart: stable/prometheus
`,
"/path/to/helmfile.d/b.yaml": `
releases:
- name: grafana
chart: stable/grafana
`,
}
globMatches := map[string][]string{
"/path/to/helmfile.d/a*.yaml": []string{"/path/to/helmfile.d/a1.yaml", "/path/to/helmfile.d/a2.yaml"},
"/path/to/helmfile.d/b*.yaml": []string{"/path/to/helmfile.d/b.yaml"},
}
fileExistsAt := func(path string) bool {
_, ok := files[path]
return ok
}
directoryExistsAt := func(path string) bool {
_, ok := dirs[path]
return ok
}
readFile := func(filename string) ([]byte, error) {
str, ok := files[filename]
if !ok {
return []byte(nil), fmt.Errorf("no file found: %s", filename)
}
return []byte(str), nil
}
glob := func(pattern string) ([]string, error) {
matches, ok := globMatches[pattern]
if !ok {
return []string(nil), fmt.Errorf("no file matched: %s", pattern)
}
return matches, nil
}
abs := func(path string) (string, error) {
a, ok := absPaths[path]
if !ok {
return "", fmt.Errorf("abs: unexpected path: %s", path)
}
return a, nil
}
app := &app{
readFile: readFile,
glob: glob,
abs: abs,
fileExistsAt: fileExistsAt,
directoryExistsAt: directoryExistsAt,
kubeContext: "default",
logger: helmexec.NewLogger(os.Stderr, "debug"),
}
noop := func(st *state.HelmState, helm helmexec.Interface) []error {
return []error{}
}
testcases := []struct {
name string
expectErr bool
}{
{name: "prometheus", expectErr: false},
{name: "zipkin", expectErr: false},
{name: "grafana", expectErr: false},
{name: "elasticsearch", expectErr: true},
}
for _, testcase := range testcases {
err := app.FindAndIterateOverDesiredStates(
"helmfile.yaml", noop, "", []string{fmt.Sprintf("name=%s", testcase.name)}, "default",
)
if testcase.expectErr && err == nil {
t.Errorf("error expected but not happened for name=%s", testcase.name)
} else if !testcase.expectErr && err != nil {
t.Errorf("unexpected error for name=%s: %v", testcase.name, err)
}
}
}