50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
package allocator_test
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import (
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. "github.com/onsi/ginkgo/v2"
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. "github.com/onsi/gomega"
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"zworld/engine/renderapi/cache/allocator"
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)
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var _ = Describe("", func() {
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It("allocates!", func() {
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fl := allocator.New(1024)
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block, err := fl.Alloc(16)
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Expect(err).ToNot(HaveOccurred())
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Expect(block.Size).To(Equal(256))
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err = fl.Free(block.Offset)
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Expect(err).ToNot(HaveOccurred())
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block2, err := fl.Alloc(257)
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Expect(err).ToNot(HaveOccurred())
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Expect(block2.Size).To(Equal(512))
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})
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It("allocates correct sizes", func() {
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fl := allocator.New(1024)
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block, err := fl.Alloc(257)
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Expect(err).ToNot(HaveOccurred())
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Expect(block.Size).To(Equal(512))
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})
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It("assigns tiers correctly", func() {
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Expect(allocator.GetBucketTier(allocator.MinAlloc)).To(Equal(0))
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Expect(allocator.GetBucketTier(allocator.MinAlloc + 1)).To(Equal(1))
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Expect(allocator.GetBucketTier(2 * allocator.MinAlloc)).To(Equal(1))
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Expect(allocator.GetBucketTier(2*allocator.MinAlloc + 1)).To(Equal(2))
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})
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It("checks powers of two", func() {
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Expect(allocator.IsPowerOfTwo(2)).To(BeTrue())
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Expect(allocator.IsPowerOfTwo(4)).To(BeTrue())
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Expect(allocator.IsPowerOfTwo(8)).To(BeTrue())
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Expect(allocator.IsPowerOfTwo(16)).To(BeTrue())
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Expect(allocator.IsPowerOfTwo(0)).To(BeFalse())
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Expect(allocator.IsPowerOfTwo(3)).To(BeFalse())
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Expect(allocator.IsPowerOfTwo(121)).To(BeFalse())
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})
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})
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