// Copyright 2022 Google LLC

//

// 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

//

// https://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 codelab.solutions;

import static com.google.common.truth.Truth.assertThat;

import com.google.common.collect.ImmutableMap;

import com.google.protobuf.Struct;

import com.google.protobuf.Value;

import com.google.rpc.context.AttributeContext;

import com.google.testing.junit.testparameterinjector.TestParameterInjector;

import com.google.testing.junit.testparameterinjector.TestParameters;

import dev.cel.common.CelAbstractSyntaxTree;

import dev.cel.common.types.SimpleType;

import dev.cel.common.types.StructTypeReference;

import org.junit.Test;

import org.junit.runner.RunWith;

@RunWith(TestParameterInjector.class)

public final class Exercise2Test {

private final Exercise2 exercise2 = new Exercise2();

@Test

@TestParameters("{value: 5, expectedResult: false}")

@TestParameters("{value: -5, expectedResult: true}")

public void evaluate_negativeExpression(long value, boolean expectedResult) {

CelAbstractSyntaxTree ast = exercise2.compile("value < 0", "value", SimpleType.INT);

Object evaluatedResult = exercise2.eval(ast, ImmutableMap.of("value", value));

assertThat(evaluatedResult).isEqualTo(expectedResult);

}

@Test

@TestParameters("{group: 'admin', expectedResult: true}")

@TestParameters("{group: 'users', expectedResult: false}")

public void evaluate_requestAuthorization(String group, boolean expectedResult) {

CelAbstractSyntaxTree ast =

exercise2.compile(

"request.auth.claims.group == 'admin'",

"request",

StructTypeReference.create("google.rpc.context.AttributeContext.Request"));

AttributeContext.Auth auth =

AttributeContext.Auth.newBuilder()

.setPrincipal("user:me@acme.co")

.setClaims(

Struct.newBuilder()

.putFields("group", Value.newBuilder().setStringValue(group).build()))

.build();

AttributeContext.Request request = AttributeContext.Request.newBuilder().setAuth(auth).build();

Object evaluatedResult = exercise2.eval(ast, ImmutableMap.of("request", request));

assertThat(evaluatedResult).isEqualTo(expectedResult);

}

}