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// Copyright 2006 The Bazel Authors. All Rights Reserved.
//
// 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 com.google.devtools.build.lib.syntax;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.syntax.SkylarkList.MutableList;
import com.google.devtools.build.lib.syntax.SkylarkList.Tuple;
import com.google.devtools.build.lib.syntax.util.EvaluationTestCase;
import java.util.TreeMap;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Test properties of the evaluator's datatypes and utility functions
* without actually creating any parse trees.
*/
@RunWith(JUnit4.class)
public class EvalUtilsTest extends EvaluationTestCase {
private static MutableList<Object> makeList(Environment env) {
return MutableList.<Object>of(env, 1, 2, 3);
}
private static SkylarkDict<Object, Object> makeDict(Environment env) {
return SkylarkDict.<Object, Object>of(env, 1, 1, 2, 2);
}
@Test
public void testEmptyStringToIterable() throws Exception {
assertThat(EvalUtils.toIterable("", null)).isEmpty();
}
@Test
public void testStringToIterable() throws Exception {
assertThat(EvalUtils.toIterable("abc", null)).hasSize(3);
}
/** MockClassA */
@SkylarkModule(name = "MockClassA", doc = "MockClassA")
public static class MockClassA {
}
/** MockClassB */
public static class MockClassB extends MockClassA {
}
@Test
public void testDataTypeNames() throws Exception {
assertEquals("string", EvalUtils.getDataTypeName("foo"));
assertEquals("int", EvalUtils.getDataTypeName(3));
assertEquals("tuple", EvalUtils.getDataTypeName(Tuple.of(1, 2, 3)));
assertEquals("list", EvalUtils.getDataTypeName(makeList(null)));
assertEquals("dict", EvalUtils.getDataTypeName(makeDict(null)));
assertEquals("NoneType", EvalUtils.getDataTypeName(Runtime.NONE));
assertEquals("MockClassA", EvalUtils.getDataTypeName(new MockClassA()));
assertEquals("MockClassA", EvalUtils.getDataTypeName(new MockClassB()));
}
@Test
public void testDatatypeMutabilityPrimitive() throws Exception {
assertTrue(EvalUtils.isImmutable("foo"));
assertTrue(EvalUtils.isImmutable(3));
}
@Test
public void testDatatypeMutabilityShallow() throws Exception {
assertTrue(EvalUtils.isImmutable(Tuple.of(1, 2, 3)));
// Mutability depends on the environment.
assertTrue(EvalUtils.isImmutable(makeList(null)));
assertTrue(EvalUtils.isImmutable(makeDict(null)));
assertFalse(EvalUtils.isImmutable(makeList(env)));
assertFalse(EvalUtils.isImmutable(makeDict(env)));
}
@Test
public void testDatatypeMutabilityDeep() throws Exception {
assertTrue(EvalUtils.isImmutable(Tuple.<Object>of(makeList(null))));
assertFalse(EvalUtils.isImmutable(Tuple.<Object>of(makeList(env))));
}
@Test
public void testComparatorWithDifferentTypes() throws Exception {
TreeMap<Object, Object> map = new TreeMap<>(EvalUtils.SKYLARK_COMPARATOR);
map.put(2, 3);
map.put("1", 5);
map.put(42, 4);
map.put("test", 7);
map.put(-1, 2);
map.put("4", 6);
map.put(true, 1);
map.put(Runtime.NONE, 0);
int expected = 0;
// Expected order of keys is NoneType -> Double -> Integers -> Strings
for (Object obj : map.values()) {
assertThat(obj).isEqualTo(expected);
++expected;
}
}
}
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