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package solver
import (
"testing"
"github.com/stretchr/testify/require"
)
func checkEmpty(t *testing.T, ei *edgeIndex) {
require.Equal(t, 0, len(ei.items))
require.Equal(t, 0, len(ei.backRefs))
}
func TestIndexSimple(t *testing.T) {
idx := newEdgeIndex()
e1 := &edge{}
e2 := &edge{}
e3 := &edge{}
k1 := NewCacheKey(dgst("foo"), "", 0)
v := idx.LoadOrStore(k1, e1)
require.Nil(t, v)
k2 := NewCacheKey(dgst("bar"), "", 0)
v = idx.LoadOrStore(k2, e2)
require.Nil(t, v)
v = idx.LoadOrStore(NewCacheKey(dgst("bar"), "", 0), e3)
require.Equal(t, v, e2)
v = idx.LoadOrStore(NewCacheKey(dgst("bar"), "", 0), e3)
require.Equal(t, v, e2)
v = idx.LoadOrStore(NewCacheKey(dgst("foo"), "", 0), e3)
require.Equal(t, v, e1)
idx.Release(e1)
idx.Release(e2)
checkEmpty(t, idx)
}
func TestIndexMultiLevelSimple(t *testing.T) {
idx := newEdgeIndex()
e1 := &edge{}
e2 := &edge{}
e3 := &edge{}
k1 := testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{{CacheKey: expKey(NewCacheKey("s0", "", 0)), Selector: dgst("s0")}},
})
v := idx.LoadOrStore(k1, e1)
require.Nil(t, v)
k2 := testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{{CacheKey: expKey(NewCacheKey("s0", "", 0)), Selector: dgst("s0")}},
})
v = idx.LoadOrStore(k2, e2)
require.Equal(t, v, e1)
k2 = testCacheKeyWithDeps(dgst("foo"), 1, k1.Deps())
v = idx.LoadOrStore(k2, e2)
require.Equal(t, v, e1)
v = idx.LoadOrStore(k1, e2)
require.Equal(t, v, e1)
// update selector
k2 = testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{{CacheKey: expKey(NewCacheKey("s0", "", 0))}},
})
v = idx.LoadOrStore(k2, e2)
require.Nil(t, v)
// add one dep to e1
k2 = testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{
{CacheKey: expKey(NewCacheKey("s0", "", 0)), Selector: dgst("s0")},
{CacheKey: expKey(NewCacheKey("s1", "", 1))},
},
})
v = idx.LoadOrStore(k2, e2)
require.Equal(t, v, e1)
// recheck with only the new dep key
k2 = testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{
{CacheKey: expKey(NewCacheKey("s1", "", 1))},
},
})
v = idx.LoadOrStore(k2, e2)
require.Equal(t, v, e1)
// combine e1 and e2
k2 = testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{
{CacheKey: expKey(NewCacheKey("s0", "", 0))},
{CacheKey: expKey(NewCacheKey("s1", "", 1))},
},
})
v = idx.LoadOrStore(k2, e2)
require.Equal(t, v, e1)
// initial e2 now points to e1
k2 = testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{{CacheKey: expKey(NewCacheKey("s0", "", 0))}},
})
v = idx.LoadOrStore(k2, e2)
require.Equal(t, v, e1)
idx.Release(e1)
// e2 still remains after e1 is gone
k2 = testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{{CacheKey: expKey(NewCacheKey("s0", "", 0))}},
})
v = idx.LoadOrStore(k2, e3)
require.Equal(t, v, e2)
idx.Release(e2)
checkEmpty(t, idx)
}
func TestIndexThreeLevels(t *testing.T) {
idx := newEdgeIndex()
e1 := &edge{}
e2 := &edge{}
e3 := &edge{}
k1 := testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{{CacheKey: expKey(NewCacheKey("s0", "", 0)), Selector: dgst("s0")}},
})
v := idx.LoadOrStore(k1, e1)
require.Nil(t, v)
v = idx.LoadOrStore(k1, e2)
require.Equal(t, v, e1)
k2 := testCacheKeyWithDeps(dgst("bar"), 0, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{{CacheKey: expKey(k1)}},
})
v = idx.LoadOrStore(k2, e2)
require.Nil(t, v)
k2 = testCacheKeyWithDeps(dgst("bar"), 0, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{
{CacheKey: expKey(k1)},
{CacheKey: expKey(NewCacheKey("alt", "", 0))},
},
})
v = idx.LoadOrStore(k2, e2)
require.Nil(t, v)
k2 = testCacheKeyWithDeps(dgst("bar"), 0, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{
{CacheKey: expKey(NewCacheKey("alt", "", 0))},
},
})
v = idx.LoadOrStore(k2, e3)
require.Equal(t, v, e2)
// change dep in a low key
k1 = testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{
{CacheKey: expKey(NewCacheKey("f0", "", 0))},
{CacheKey: expKey(NewCacheKey("f0_", "", 0))},
},
{{CacheKey: expKey(NewCacheKey("s0", "", 0)), Selector: dgst("s0")}},
})
k2 = testCacheKeyWithDeps(dgst("bar"), 0, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{{CacheKey: expKey(k1)}},
})
v = idx.LoadOrStore(k2, e3)
require.Equal(t, v, e2)
// reload with only f0_ still matches
k1 = testCacheKeyWithDeps(dgst("foo"), 1, [][]CacheKeyWithSelector{
{
{CacheKey: expKey(NewCacheKey("f0_", "", 0))},
},
{{CacheKey: expKey(NewCacheKey("s0", "", 0)), Selector: dgst("s0")}},
})
k2 = testCacheKeyWithDeps(dgst("bar"), 0, [][]CacheKeyWithSelector{
{{CacheKey: expKey(NewCacheKey("f0", "", 0))}},
{{CacheKey: expKey(k1)}},
})
v = idx.LoadOrStore(k2, e3)
require.Equal(t, v, e2)
idx.Release(e1)
idx.Release(e2)
checkEmpty(t, idx)
}
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