ginger/seq/util.go

114 lines
2.6 KiB
Go

package seq
import (
"testing"
"github.com/mediocregopher/ginger/types"
)
// Returns whether or not two types.Elem slices contain the same elements
func intSlicesEq(a, b []types.Elem) bool {
if len(a) != len(b) {
return false
}
for i := range a {
if a[i] != b[i] {
return false
}
}
return true
}
func elemSliceV(a ...interface{}) []types.Elem {
ret := make([]types.Elem, 0, len(a))
for i := range a {
if e, ok := a[i].(types.Elem); ok {
ret = append(ret, e)
} else {
ret = append(ret, types.GoType{a[i]})
}
}
return ret
}
// Asserts that the given Seq is empty (contains no elements)
func assertEmpty(s Seq, t *testing.T) {
if Size(s) != 0 {
t.Fatalf("Seq isn't empty: %v", ToSlice(s))
}
}
// Asserts that the given Seq has the given elements
func assertSeqContents(s Seq, intl []types.Elem, t *testing.T) {
if ls := ToSlice(s); !intSlicesEq(ls, intl) {
t.Fatalf("Slice contents wrong: %v not %v", ls, intl)
}
}
// Asserts that the given Seq has all elements, and only the elements, in the
// given map
func assertSeqContentsNoOrderMap(s Seq, m map[types.Elem]bool, t *testing.T) {
ls := ToSlice(s)
if len(ls) != len(m) {
t.Fatalf("Slice contents wrong: %v not %v", ls, m)
}
for i := range ls {
if _, ok := m[ls[i]]; !ok {
t.Fatalf("Slice contents wrong: %v not %v", ls, m)
}
}
}
// Asserts that the given Seq has all the elements, and only the elements
// (duplicates removed), in the given slice, although no necessarily in the
// order given in the slice
func assertSeqContentsSet(s Seq, ints []types.Elem, t *testing.T) {
m := map[types.Elem]bool{}
for i := range ints {
m[ints[i]] = true
}
assertSeqContentsNoOrderMap(s, m, t)
}
func assertSeqContentsHashMap(s Seq, kvs []*KV, t *testing.T) {
m := map[KV]bool{}
for i := range kvs {
m[*kvs[i]] = true
}
ls := ToSlice(s)
if len(ls) != len(m) {
t.Fatalf("Slice contents wrong: %v not %v", ls, m)
}
for i := range ls {
kv := ls[i].(*KV)
if _, ok := m[*kv]; !ok {
t.Fatalf("Slice contents wrong: %v not %v", ls, m)
}
}
}
// Asserts that v1 is the same as v2
func assertValue(v1, v2 interface{}, t *testing.T) {
if gv1, ok := v1.(types.GoType); ok {
v1 = gv1.V
}
if gv2, ok := v2.(types.GoType); ok {
v2 = gv2.V
}
if v1 != v2 {
t.Logf("Value wrong: %v not %v", v1, v2)
panic("bail")
}
}
// Asserts that v1 is a key in the given map
func assertInMap(v1 types.Elem, m map[types.Elem]bool, t *testing.T) {
if _, ok := m[v1]; !ok {
t.Fatalf("Value not in set: %v not in %v", v1, m)
}
}
func keyValV(k, v interface{}) *KV {
return KeyVal(types.GoType{k}, types.GoType{v})
}