vain/db_test.go

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package vain
import (
"errors"
"testing"
)
func TestPartialPackage(t *testing.T) {
db, done := TestDB(t)
if db == nil {
t.Fatalf("could not create temp db")
}
defer done()
paths := []path{
"a/b",
"a/c",
"a/d/c",
"a/d/e",
"f/b/c/d",
"f/b/c/e",
}
for _, p := range paths {
db.Packages[p] = Package{Path: string(p)}
}
tests := []struct {
pth string
pkg Package
err error
}{
// obvious
{
pth: "a/b",
pkg: db.Packages["a/b"],
},
{
pth: "a/d/c",
pkg: db.Packages["a/d/c"],
},
// here we exercise the code that matches closest submatch
{
pth: "a/b/c",
pkg: db.Packages["a/b"],
},
{
pth: "f/b/c/d/e/f/g",
pkg: db.Packages["f/b/c/d"],
},
// some errors
{
pth: "foo",
err: errors.New("shouldn't find"),
},
{
pth: "a/d/f",
err: errors.New("shouldn't find"),
},
}
for _, test := range tests {
p, err := db.Package(test.pth)
if got, want := p, test.pkg; got != want {
t.Errorf("bad package fetched: got %+v, want %+v", got, want)
}
got := err
want := test.err
if (got == nil) != (want == nil) {
t.Errorf("unexpected error; got %v, want %v", got, want)
}
}
}