// Copyright (C) 2016 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package parser_test

import (
	"testing"

	"android.googlesource.com/platform/tools/gpu/api/parser"
	"android.googlesource.com/platform/tools/gpu/framework/assert"
	"android.googlesource.com/platform/tools/gpu/framework/parse"
	"android.googlesource.com/platform/tools/gpu/framework/parse/test"
)

var (
	B = test.Branch
	L = test.Leaf
	N = test.Node
)

func TestParsedCST(t *testing.T) {
	ctx := assert.Context(t)
	for _, test := range []struct {
		name     string
		expected parse.Node
		source   string
		errors   parse.ErrorList
	}{
		{
			name:   "const int*",
			source: `const int* a`,
			expected: B(B(
				N(nil, B(
					N(nil, "const", " "),
					B(B(L("int")), L("*")),
				), " ",
				),
				L("a"),
			)),
		},
		{
			name:   "const char* const *",
			source: `const char* const * a`,
			expected: B(B(
				B(
					N(nil, B(
						N(nil, "const", " "),
						B(
							B(L("char")),
							L("*"),
						),
					), " "),
					N(nil, L("const"), " "),
					N(nil, L("*"), " "),
				),
				L("a"),
			)),
		},
	} {
		ctx := ctx.S("Name", test.name)
		m := parser.NewParseMap()
		api, errs := parser.Parse("parser_test.api", test.source, m)
		assert.With(ctx).ThatSlice(errs).Equals(test.errors)
		assert.With(ctx).That(m.CST(api)).DeepEquals(test.expected)
	}
}