wehub-resource-sync
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88 lines
2.9 KiB
Go
88 lines
2.9 KiB
Go
package indexer
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestNewCppIncludeDirCache_EnvBudget(t *testing.T) {
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t.Setenv("GORTEX_RESOLVER_CACHE_MAX_MB", "7")
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assert.Equal(t, int64(7)<<20, newCppIncludeDirCache().maxBytes)
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t.Setenv("GORTEX_RESOLVER_CACHE_MAX_MB", "")
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assert.Equal(t, int64(0), newCppIncludeDirCache().maxBytes, "unset = unbounded")
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t.Setenv("GORTEX_RESOLVER_CACHE_MAX_MB", "0")
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assert.Equal(t, int64(0), newCppIncludeDirCache().maxBytes, "0 = unbounded")
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}
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// TestCppIncludeDirCache_Eviction pins that a tiny memory budget evicts the
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// least-recently-used per-repo include-dir set.
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func TestCppIncludeDirCache_Eviction(t *testing.T) {
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c := newCppIncludeDirCache()
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c.maxBytes = 200 // tiny budget; each entry below is ~89 bytes
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mk := func(f string) map[string]cppTU {
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return map[string]cppTU{f: {file: f, includeDirs: []string{"inc"}}}
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}
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c.put("repoA", mk("a.c"), 0)
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c.put("repoB", mk("b.c"), 0)
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c.put("repoC", mk("c.c"), 0)
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_, okA := c.get("repoA", 0)
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assert.False(t, okA, "least-recently-used repoA evicted under the budget")
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_, okB := c.get("repoB", 0)
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assert.True(t, okB, "repoB retained")
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_, okC := c.get("repoC", 0)
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assert.True(t, okC, "most-recently-used repoC retained")
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}
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// TestCppIncludeDirCache_GetPromotes pins that a get refreshes recency so the
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// promoted entry survives a later eviction.
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func TestCppIncludeDirCache_GetPromotes(t *testing.T) {
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c := newCppIncludeDirCache()
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c.maxBytes = 200
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mk := func(f string) map[string]cppTU {
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return map[string]cppTU{f: {file: f, includeDirs: []string{"inc"}}}
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}
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c.put("repoA", mk("a.c"), 0)
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c.put("repoB", mk("b.c"), 0)
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c.get("repoA", 0) // promote A ahead of B
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c.put("repoC", mk("c.c"), 0) // evicts the now-LRU repoB
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_, okA := c.get("repoA", 0)
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assert.True(t, okA, "promoted repoA survives")
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_, okB := c.get("repoB", 0)
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assert.False(t, okB, "repoB evicted as least-recently-used")
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}
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// TestCppIncludeDirCache_UnboundedKeepsAll pins that the default (no budget)
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// retains every entry.
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func TestCppIncludeDirCache_UnboundedKeepsAll(t *testing.T) {
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c := newCppIncludeDirCache() // maxBytes 0
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for _, r := range []string{"r1", "r2", "r3"} {
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c.put(r, map[string]cppTU{r: {file: r}}, 0)
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}
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for _, r := range []string{"r1", "r2", "r3"} {
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_, ok := c.get(r, 0)
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assert.True(t, ok, "unbounded cache retains %s", r)
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}
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}
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// TestCppIncludeDirCache_MtimeStaleMiss pins the freshness check: a get whose
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// disk modtime exceeds the entry's recorded mtime is a miss, while an equal or
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// older modtime is a hit.
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func TestCppIncludeDirCache_MtimeStaleMiss(t *testing.T) {
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c := newCppIncludeDirCache()
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c.put("repo", map[string]cppTU{"a.c": {file: "a.c"}}, 100)
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_, ok := c.get("repo", 100)
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assert.True(t, ok, "equal modtime is a hit")
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_, ok = c.get("repo", 50)
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assert.True(t, ok, "older modtime is a hit")
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_, ok = c.get("repo", 200)
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assert.False(t, ok, "newer modtime is a stale miss")
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}
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