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package fzf
import (
"io/ioutil"
"os"
"runtime"
"testing"
)
func TestHistory(t *testing.T) {
maxHistory := 50
// Invalid arguments
var paths []string
if runtime.GOOS == "windows" {
// GOPATH should exist, so we shouldn't be able to override it
paths = []string{os.Getenv("GOPATH")}
} else {
paths = []string{"/etc", "/proc"}
}
for _, path := range paths {
if _, e := NewHistory(path, maxHistory); e == nil {
t.Error("Error expected for: " + path)
}
}
f, _ := ioutil.TempFile("", "fzf-history")
f.Close()
{ // Append lines
h, _ := NewHistory(f.Name(), maxHistory)
for i := 0; i < maxHistory+10; i++ {
h.append("foobar")
}
}
{ // Read lines
h, _ := NewHistory(f.Name(), maxHistory)
if len(h.lines) != maxHistory+1 {
t.Errorf("Expected: %d, actual: %d\n", maxHistory+1, len(h.lines))
}
for i := 0; i < maxHistory; i++ {
if h.lines[i] != "foobar" {
t.Error("Expected: foobar, actual: " + h.lines[i])
}
}
}
{ // Append lines
h, _ := NewHistory(f.Name(), maxHistory)
h.append("barfoo")
h.append("")
h.append("foobarbaz")
}
{ // Read lines again
h, _ := NewHistory(f.Name(), maxHistory)
if len(h.lines) != maxHistory+1 {
t.Errorf("Expected: %d, actual: %d\n", maxHistory+1, len(h.lines))
}
compare := func(idx int, exp string) {
if h.lines[idx] != exp {
t.Errorf("Expected: %s, actual: %s\n", exp, h.lines[idx])
}
}
compare(maxHistory-3, "foobar")
compare(maxHistory-2, "barfoo")
compare(maxHistory-1, "foobarbaz")
}
}
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