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Test directory creation behavior in InitCache #382

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merged 1 commit into from
Jan 16, 2023
Merged

Test directory creation behavior in InitCache #382

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23 changes: 23 additions & 0 deletions internal/api/lib_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"testing"
"time"

Expand Down Expand Up @@ -36,6 +37,28 @@ func TestInitAndReleaseCache(t *testing.T) {
ReleaseCache(cache)
}

// wasmd expectes us to create the base directory
// https://github.com/CosmWasm/wasmd/blob/v0.30.0/x/wasm/keeper/keeper.go#L128
func TestInitCacheWorksForNonExistentDir(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "wasmvm-testing")
require.NoError(t, err)
defer os.RemoveAll(tmpdir)

createMe := filepath.Join(tmpdir, "does-not-yet-exist")
cache, err := InitCache(createMe, TESTING_FEATURES, TESTING_CACHE_SIZE, TESTING_MEMORY_LIMIT)
require.NoError(t, err)
ReleaseCache(cache)
}

func TestInitCacheErrorsForBrokenDir(t *testing.T) {
// Use colon to make this fail on Windows
// https://gist.github.com/doctaphred/d01d05291546186941e1b7ddc02034d3
// On Unix we should not have permission to create this.
cannotBeCreated := "/foo:bar"
_, err := InitCache(cannotBeCreated, TESTING_FEATURES, TESTING_CACHE_SIZE, TESTING_MEMORY_LIMIT)
require.ErrorContains(t, err, "Error creating state directory")
}

func TestInitCacheEmptyFeatures(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "wasmvm-testing")
require.NoError(t, err)
Expand Down