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jq_test.go
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jq_test.go
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package main
import (
"reflect"
"strings"
"testing"
"unicode"
)
type MockFilter []string
func (filter MockFilter) JQFilter() []string {
return filter
}
func TestLocateJQ(t *testing.T) {
jqbin, err := LocateJQ("")
if err != nil {
t.Fatal("unable to find jq in PATH: %v", err)
}
if jqbin == "" {
t.Fatalf("no jq binary path returned")
}
_jqbin, err := LocateJQ(jqbin)
if err != nil {
t.Fatalf("unable to find jq from a concrete path: %v", err)
}
if jqbin != _jqbin {
t.Fatalf("different path returned when from concrete path argument %q (got %q)", jqbin, _jqbin)
}
badjqs := []string{
"/testing/no/jq/here",
".",
"jq.go",
"/bin/bash",
}
for _, badjq := range badjqs {
badbin, err := LocateJQ(badjq)
if err == nil {
t.Errorf("no error returned for jq binary path: %q", badjq)
}
if badbin != "" {
t.Errorf("non-empty bin %q return for jq binary path: %q", badbin, badjq)
}
}
}
func TestCheckJQVersion(t *testing.T) {
venv, err := CheckJQVersion("")
if err != nil {
t.Fatalf("env jq version: %v", err)
}
if venv == "" {
t.Fatalf("empty env jq version string")
}
ispace := strings.LastIndexFunc(venv, unicode.IsSpace)
if ispace >= 0 {
cs := []rune(venv[ispace:])
if len(cs) == 1 {
t.Fatalf("jq version string has trailing space: %q", venv)
}
}
t.Logf("env jq version: %q", venv)
jqbin, err := LocateJQ("")
if err != nil {
t.Fatalf("locating jq: %v", err)
}
v, err := CheckJQVersion(jqbin)
if err != nil {
t.Fatalf("%s version: %v", jqbin, venv)
}
if v != venv {
t.Fatalf("different version string return from concrete path argument %q (got %q; expected %q)", jqbin, v, venv)
}
}
func TestParseJQVersion(t *testing.T) {
for _, test := range []struct {
in string
s string
maj, min int
suf string
err bool
}{
{"jq-1.4\n", "jq-1.4", 1, 4, "", false},
{"jq version 1.3\n", "jq version 1.3", 1, 3, "", false},
} {
s, maj, min, suf, err := ParseJQVersion(test.in)
if s != test.s {
t.Errorf("%q unexpected version string: %q", test.in, s)
}
if maj != test.maj {
t.Errorf("%q unexpected major version: %q", test.in, maj)
}
if min != test.min {
t.Errorf("%q unexpected minor version: %q", test.in, min)
}
if suf != test.suf {
t.Errorf("%q unexpected version suffix: %q", test.in, suf)
}
if !test.err && err != nil {
t.Errorf("%q unexpected error: %v", test.in, err)
}
if test.err && err == nil {
t.Errorf("%q expected an error", test.in, err)
}
}
}
func TestJoinFilter(t *testing.T) {
filter := JoinFilter(MockFilter{"hello", "world"})
if filter != "hello | world" {
t.Fatalf("incorrect two-value filter: %v", filter)
}
filter = JoinFilter(MockFilter(nil))
if filter != "." {
t.Fatalf("incorrect zero-value filter: %v", filter)
}
filter = JoinFilter(MockFilter{"!"})
if filter != "!" {
t.Fatalf("incorrect one-value filter: %v", filter)
}
}
func TestJQStack(t *testing.T) {
s := new(JQStack)
s.Push(MockFilter{"hello"})
s.Push(MockFilter(nil))
s.Push(MockFilter{"world"})
fs := s.JQFilter()
if !reflect.DeepEqual(fs, []string{"hello", "world"}) {
t.Fatalf("incorrect filter stack: %v", fs)
}
s.Pop(1)
fs = s.JQFilter()
if !reflect.DeepEqual(fs, []string{"hello"}) {
t.Fatalf("incorrect filter stack: %v", fs)
}
s.Pop(1)
fs = s.JQFilter()
if !reflect.DeepEqual(fs, []string{"hello"}) {
t.Fatalf("incorrect filter stack: %v", fs)
}
s.Pop(1)
fs = s.JQFilter()
if len(fs) != 0 {
t.Fatalf("incorrect filter stack: %v", fs)
}
s.Pop(1)
fs = s.JQFilter()
if len(fs) != 0 {
t.Fatalf("incorrect filter stack: %v", fs)
}
}