pkg/compiler: more static error checking

Update #217

1 files changed, 61 insertions, 0 deletions

diff --git a/pkg/compiler/consts_test.go b/pkg/compiler/consts_test.go
new file mode 100644
index 000000000..647b2f1f4
--- /dev/null
+++ b/pkg/compiler/consts_test.go
@@ -0,0 +1,61 @@
+// Copyright 2017 syzkaller project authors. All rights reserved.
+// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
+
+package compiler
+
+import (
+	"io/ioutil"
+	"path/filepath"
+	"reflect"
+	"testing"
+
+	"github.com/google/syzkaller/pkg/ast"
+)
+
+func TestExtractConsts(t *testing.T) {
+	data, err := ioutil.ReadFile(filepath.Join("testdata", "consts.txt"))
+	if err != nil {
+		t.Fatalf("failed to read input file: %v", err)
+	}
+	desc := ast.Parse(data, "test", nil)
+	if desc == nil {
+		t.Fatalf("failed to parse input")
+	}
+	info := ExtractConsts(desc, func(pos ast.Pos, msg string) {
+		t.Fatalf("%v: %v", pos, msg)
+	})
+	wantConsts := []string{"CONST1", "CONST10", "CONST11", "CONST12", "CONST13",
+		"CONST14", "CONST15", "CONST16",
+		"CONST2", "CONST3", "CONST4", "CONST5",
+		"CONST6", "CONST7", "CONST8", "CONST9", "__NR_bar", "__NR_foo"}
+	if !reflect.DeepEqual(info.Consts, wantConsts) {
+		t.Fatalf("got consts:\n%q\nwant:\n%q", info.Consts, wantConsts)
+	}
+	wantIncludes := []string{"foo/bar.h", "bar/foo.h"}
+	if !reflect.DeepEqual(info.Includes, wantIncludes) {
+		t.Fatalf("got includes:\n%q\nwant:\n%q", info.Includes, wantIncludes)
+	}
+	wantIncdirs := []string{"/foo", "/bar"}
+	if !reflect.DeepEqual(info.Incdirs, wantIncdirs) {
+		t.Fatalf("got incdirs:\n%q\nwant:\n%q", info.Incdirs, wantIncdirs)
+	}
+	wantDefines := map[string]string{
+		"CONST1": "1",
+		"CONST2": "FOOBAR + 1",
+	}
+	if !reflect.DeepEqual(info.Defines, wantDefines) {
+		t.Fatalf("got defines:\n%q\nwant:\n%q", info.Defines, wantDefines)
+	}
+}
+
+func TestConstErrors(t *testing.T) {
+	name := "consts_errors.txt"
+	em := ast.NewErrorMatcher(t, filepath.Join("testdata", name))
+	desc := ast.Parse(em.Data, name, em.ErrorHandler)
+	if desc == nil {
+		em.DumpErrors(t)
+		t.Fatalf("parsing failed")
+	}
+	ExtractConsts(desc, em.ErrorHandler)
+	em.Check(t)
+}