tests: matrix: factor out MainTest

1 files changed, 114 insertions, 0 deletions

diff --git a/tests/matrix/main_test.go b/tests/matrix/main_test.go
new file mode 100644
index 0000000..fb2b273
--- /dev/null
+++ b/tests/matrix/main_test.go
@@ -0,0 +1,114 @@
+// Tests run for (almost all) combinations of openssl, aessiv, plaintextnames.
+//
+// File reading, writing, modification, truncate, ...
+//
+// Runs all tests N times, for the combinations of different flags specified
+// in the `matrix` variable.
+
+package matrix
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/rfjakob/gocryptfs/v2/internal/stupidgcm"
+	"github.com/rfjakob/gocryptfs/v2/tests/test_helpers"
+)
+
+// Several tests need to be aware if plaintextnames is active or not, so make this
+// a global variable
+var testcase testcaseMatrix
+
+type testcaseMatrix struct {
+	plaintextnames bool
+	openssl        string
+	aessiv         bool
+	raw64          bool
+	extraArgs      []string
+}
+
+// isSet finds out if `extraArg` is set in `tc.extraArgs`
+func (tc *testcaseMatrix) isSet(extraArg string) bool {
+	for _, v := range tc.extraArgs {
+		if v == extraArg {
+			return true
+		}
+	}
+	return false
+}
+
+var matrix = []testcaseMatrix{
+	// Normal
+	{false, "auto", false, false, nil},
+	{false, "true", false, false, nil},
+	{false, "false", false, false, nil},
+	// Plaintextnames
+	{true, "true", false, false, nil},
+	{true, "false", false, false, nil},
+	// AES-SIV (does not use openssl, no need to test permutations)
+	{false, "auto", true, false, nil},
+	{true, "auto", true, false, nil},
+	// Raw64
+	{false, "auto", false, true, nil},
+	// -serialize_reads
+	{false, "auto", false, false, []string{"-serialize_reads"}},
+	{false, "auto", false, false, []string{"-sharedstorage"}},
+	{false, "auto", false, false, []string{"-deterministic-names"}},
+	// Test xchacha with and without openssl
+	{false, "true", false, true, []string{"-xchacha"}},
+	{false, "false", false, true, []string{"-xchacha"}},
+}
+
+// This is the entry point for the tests
+func TestMain(m *testing.M) {
+	// Make "testing.Verbose()" return the correct value
+	flag.Parse()
+	var i int
+	for i, testcase = range matrix {
+		if testcase.openssl == "true" && stupidgcm.BuiltWithoutOpenssl {
+			continue
+		}
+		if testing.Verbose() {
+			fmt.Printf("matrix: testcase = %#v\n", testcase)
+		}
+		createDirIV := true
+		if testcase.plaintextnames {
+			createDirIV = false
+		} else if testcase.isSet("-deterministic-names") {
+			createDirIV = false
+		}
+		test_helpers.ResetTmpDir(createDirIV)
+		opts := []string{"-zerokey"}
+		//opts = append(opts, "-fusedebug")
+		opts = append(opts, fmt.Sprintf("-openssl=%v", testcase.openssl))
+		opts = append(opts, fmt.Sprintf("-plaintextnames=%v", testcase.plaintextnames))
+		opts = append(opts, fmt.Sprintf("-aessiv=%v", testcase.aessiv))
+		opts = append(opts, fmt.Sprintf("-raw64=%v", testcase.raw64))
+		opts = append(opts, testcase.extraArgs...)
+		test_helpers.MountOrExit(test_helpers.DefaultCipherDir, test_helpers.DefaultPlainDir, opts...)
+		before := test_helpers.ListFds(0, test_helpers.TmpDir)
+		t0 := time.Now()
+		r := m.Run()
+		if testing.Verbose() {
+			fmt.Printf("matrix: run took %v\n", time.Since(t0))
+		}
+		// Catch fd leaks in the tests. NOTE: this does NOT catch leaks in
+		// the gocryptfs FUSE process, but only in the tests that access it!
+		// All fds that point outside TmpDir are not interesting (the Go test
+		// infrastucture creates temporary log files we don't care about).
+		after := test_helpers.ListFds(0, test_helpers.TmpDir)
+		if len(before) != len(after) {
+			fmt.Printf("fd leak in test process? before, after:\n%v\n%v\n", before, after)
+			os.Exit(1)
+		}
+		test_helpers.UnmountPanic(test_helpers.DefaultPlainDir)
+		if r != 0 {
+			fmt.Printf("TestMain: matrix[%d] = %#v failed\n", i, testcase)
+			os.Exit(r)
+		}
+	}
+	os.Exit(0)
+}