source: code/trunk/zs_test.go@ 18

package main

import (
        "bytes"
        "fmt"
        "io/ioutil"
        "log"
        "os"
        "os/exec"
        "strings"
        "testing"
)

func TestSplit2(t *testing.T) {
        if a, b := split2("a:b", ":"); a != "a" || b != "b" {
                t.Fail()
        }
        if a, b := split2(":b", ":"); a != "" || b != "b" {
                t.Fail()
        }
        if a, b := split2("a:", ":"); a != "a" || b != "" {
                t.Fail()
        }
        if a, b := split2(":", ":"); a != "" || b != "" {
                t.Fail()
        }
        if a, b := split2("a", ":"); a != "a" || b != "" {
                t.Fail()
        }
        if a, b := split2("", ":"); a != "" || b != "" {
                t.Fail()
        }
}

func tmpfile(path, s string) string {
        ioutil.WriteFile(path, []byte(s), 0644)
        return path
}

func TestMD(t *testing.T) {
        defer os.Remove("foo.md")
        v, body, _ := md(tmpfile("foo.md", `
        title: Hello, world!
        keywords: foo, bar, baz
        empty:
        bayan: [:|||:]

this: is a content`))
        if v["title"] != "Hello, world!" {
                t.Error()
        }
        if v["keywords"] != "foo, bar, baz" {
                t.Error()
        }
        if s, ok := v["empty"]; !ok || len(s) != 0 {
                t.Error()
        }
        if v["bayan"] != "[:|||:]" {
                t.Error()
        }
        if body != "this: is a content" {
                t.Error(body)
        }

        // Test empty md
        v, body, _ = md(tmpfile("foo.md", ""))
        if len(v) != 0 || len(body) != 0 {
                t.Error(v, body)
        }

        // Test empty header
        v, body, _ = md(tmpfile("foo.md", "Hello"))
        if len(v) != 0 || body != "Hello" {
                t.Error(v, body)
        }
}

func TestRender(t *testing.T) {
        eval := func(a []string, vars Vars) (string, error) {
                return "hello", nil
        }
        vars := map[string]string{"foo": "bar"}

        if s, err := render("plain text", vars, eval); err != nil || s != "plain text" {
                t.Error()
        }
        if s, err := render("a {{greet}} text", vars, eval); err != nil || s != "a hello text" {
                t.Error()
        }
        if s, err := render("{{greet}} x{{foo}}z", vars, eval); err != nil || s != "hello xbarz" {
                t.Error()
        }
        // Test error case
        if s, err := render("a {{greet text ", vars, eval); err == nil || len(s) != 0 {
                t.Error()
        }
}

func TestEnv(t *testing.T) {
        e := env(map[string]string{"foo": "bar", "baz": "hello world"})
        mustHave := []string{"ZS=" + os.Args[0], "ZS_FOO=bar", "ZS_BAZ=hello world", "PATH="}
        for _, s := range mustHave {
                found := false
                for _, v := range e {
                        if strings.HasPrefix(v, s) {
                                found = true
                                break
                        }
                }
                if !found {
                        t.Error("Missing", s)
                }
        }
}

func TestRun(t *testing.T) {
        out := bytes.NewBuffer(nil)
        err := run("some_unbelievable_command_name", []string{}, map[string]string{}, out)
        if err == nil {
                t.Error()
        }

        out = bytes.NewBuffer(nil)
        err = run(os.Args[0], []string{"-test.run=TestHelperProcess"},
                map[string]string{"helper": "1", "out": "foo", "err": "bar"}, out)
        if err != nil {
                t.Error(err)
        }
        if out.String() != "foo\n" {
                t.Error(out.String())
        }
}

func TestEvalCommand(t *testing.T) {
        s, err := eval([]string{"echo", "hello"}, map[string]string{})
        if err != nil {
                t.Error(err)
        }
        if s != "hello\n" {
                t.Error(s)
        }
        _, err = eval([]string{"cat", "bogus/file"}, map[string]string{})
        if _, ok := err.(*exec.ExitError); !ok {
                t.Error("expected ExitError")
        }
        _, err = eval([]string{"missing command"}, map[string]string{})
        if err != nil {
                t.Error("missing command should be ignored")
        }
}

func TestHelperProcess(*testing.T) {
        if os.Getenv("ZS_HELPER") != "1" {
                return
        }
        defer os.Exit(0)                 // TODO check exit code
        log.Println(os.Getenv("ZS_ERR")) // stderr
        fmt.Println(os.Getenv("ZS_OUT")) // stdout
}