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@@ -0,0 +1,60 @@
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+// Copyright 2021 Google LLC
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+//
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+// Licensed under the Apache License, Version 2.0 (the "License");
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+// you may not use this file except in compliance with the License.
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+// You may obtain a copy of the License at
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+//
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+// http://www.apache.org/licenses/LICENSE-2.0
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+//
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+// Unless required by applicable law or agreed to in writing, software
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+// distributed under the License is distributed on an "AS IS" BASIS,
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+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+// See the License for the specific language governing permissions and
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+// limitations under the License.
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+
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+package mk2rbc
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+
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+import (
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+ "path/filepath"
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+ "reflect"
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+ "runtime"
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+ "testing"
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+)
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+
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+type testVar struct {
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+ name string
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+ cl varClass
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+ ty starlarkType
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+}
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+
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+type testVariables struct {
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+ v []testVar
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+}
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+
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+func (v *testVariables) NewVariable(name string, varClass varClass, valueType starlarkType) {
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+ v.v = append(v.v, testVar{name, varClass, valueType})
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+}
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+
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+// getTestDirectory returns the test directory, which should be the test/ subdirectory
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+func getTestDirectory() string {
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+ _, myFile, _, _ := runtime.Caller(1)
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+ return filepath.Join(filepath.Dir(myFile), "test")
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+}
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+
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+func TestConfigVariables(t *testing.T) {
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+ testFile := filepath.Join(getTestDirectory(), "config_variables.mk.test")
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+ var actual testVariables
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+ if err := FindConfigVariables(testFile, &actual); err != nil {
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+ t.Fatal(err)
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+ }
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+ expected := testVariables{[]testVar{
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+ {"PRODUCT_NAME", VarClassConfig, starlarkTypeUnknown},
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+ {"PRODUCT_MODEL", VarClassConfig, starlarkTypeUnknown},
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+ {"PRODUCT_LOCALES", VarClassConfig, starlarkTypeList},
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+ {"PRODUCT_AAPT_CONFIG", VarClassConfig, starlarkTypeList},
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+ {"PRODUCT_AAPT_PREF_CONFIG", VarClassConfig, starlarkTypeUnknown},
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+ }}
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+ if !reflect.DeepEqual(expected, actual) {
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+ t.Errorf("\nExpected: %v\n Actual: %v", expected, actual)
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+ }
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+}
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