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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.data.access;
import org.junit.Test;
import java.util.List;
import java.util.Map;
import java.util.HashMap;
import java.util.ArrayList;
import com.yahoo.data.access.Inspector;
import com.yahoo.data.access.ArrayTraverser;
import com.yahoo.data.access.ObjectTraverser;
import com.yahoo.data.access.Type;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
abstract public class InspectorConformanceTestBase {
public abstract static class Try {
abstract void f();
public Exception call() {
try {
f();
} catch (Exception e) {
return e;
}
return null;
}
}
public static class Entries implements ArrayTraverser {
List<Inspector> entries = new ArrayList<>();
public void entry(int idx, Inspector inspector) {
entries.add(inspector);
}
public Entries traverse(Inspector value) {
value.traverse(this);
return this;
}
public Entries iterate(Inspector value) {
for (Inspector itr: value.entries()) {
entries.add(itr);
}
return this;
}
public Entries add(Inspector value) {
entries.add(value);
return this;
}
}
public static class Fields implements ObjectTraverser {
Map<String,Inspector> fields = new HashMap<>();
public void field(String name, Inspector inspector) {
fields.put(name, inspector);
}
public Fields traverse(Inspector value) {
value.traverse(this);
return this;
}
public Fields iterate(Inspector value) {
for (Map.Entry<String,Inspector> itr: value.fields()) {
fields.put(itr.getKey(), itr.getValue());
}
return this;
}
public Fields add(String name, Inspector value) {
fields.put(name, value);
return this;
}
}
// This method must be implemented by all tests of concrete
// implementations to return an inspector to a structured object
// on the following form (for an example, take a look at
// com.yahoo.data.access.simple.InspectorConformanceTestCase):
//
// ARRAY {
// [0]: EMPTY
// [1]: BOOL: true
// [2]: LONG: 10
// [3]: DOUBLE: 5.75
// [4]: OBJECT {
// "foo": STRING: "foo_value"
// "bar": DATA: 0x04 0x02
// "nested": ARRAY {
// [0]: OBJECT {
// "hidden": STRING: "treasure"
// }
// }
// }
// }
public abstract Inspector getData();
@Test
public void testSelfInspectableInspector() throws Exception {
final Inspector value = getData();
final Inspector self = value.inspect();
assertThat(self, is(value));
}
@Test
public void testInvalidValue() throws Exception {
final Inspector value = getData().entry(10).field("bogus").entry(0);
assertThat(value.valid(), is(false));
assertThat(value.type(), is(Type.EMPTY));
assertThat(value.entryCount(), is(0));
assertThat(value.fieldCount(), is(0));
assertThat(new Try(){void f() { value.asBool(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asLong(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asDouble(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asString(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asUtf8(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asData(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asBool(true), is(true));
assertThat(value.asLong(50), is(50L));
assertThat(value.asDouble(20.25), is(20.25));
assertThat(value.asString("default"), is("default"));
assertThat(value.asUtf8("utf8".getBytes("UTF-8")), is("utf8".getBytes("UTF-8")));
assertThat(value.asData("data".getBytes("UTF-8")), is("data".getBytes("UTF-8")));
assertThat(new Entries().traverse(value).entries.size(), is(0));
assertThat(new Fields().traverse(value).fields.size(), is(0));
assertThat(value.entry(0).valid(), is(false));
assertThat(value.field("foo").valid(), is(false));
assertThat(new Entries().iterate(value).entries.size(), is(0));
assertThat(new Fields().iterate(value).fields.size(), is(0));
}
@Test
public void testEmptyValue() throws Exception {
final Inspector value = getData().entry(0);
assertThat(value.valid(), is(true));
assertThat(value.type(), is(Type.EMPTY));
assertThat(value.entryCount(), is(0));
assertThat(value.fieldCount(), is(0));
assertThat(value.asBool(), is(false));
assertThat(value.asLong(), is(0L));
assertThat(value.asDouble(), is(0.0));
assertThat(value.asString(), is(""));
assertThat(value.asUtf8(), is(new byte[0]));
assertThat(value.asData(), is(new byte[0]));
assertThat(value.asBool(true), is(true));
assertThat(value.asLong(50), is(50L));
assertThat(value.asDouble(20.25), is(20.25));
assertThat(value.asString("default"), is("default"));
assertThat(value.asUtf8("utf8".getBytes("UTF-8")), is("utf8".getBytes("UTF-8")));
assertThat(value.asData("data".getBytes("UTF-8")), is("data".getBytes("UTF-8")));
assertThat(new Entries().traverse(value).entries.size(), is(0));
assertThat(new Fields().traverse(value).fields.size(), is(0));
assertThat(value.entry(0).valid(), is(false));
assertThat(value.field("foo").valid(), is(false));
assertThat(new Entries().iterate(value).entries.size(), is(0));
assertThat(new Fields().iterate(value).fields.size(), is(0));
}
@Test
public void testBoolValue() throws Exception {
final Inspector value = getData().entry(1);
assertThat(value.valid(), is(true));
assertThat(value.type(), is(Type.BOOL));
assertThat(value.entryCount(), is(0));
assertThat(value.fieldCount(), is(0));
assertThat(value.asBool(), is(true));
assertThat(new Try(){void f() { value.asLong(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asDouble(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asString(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asUtf8(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asData(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asBool(false), is(true));
assertThat(value.asLong(50), is(50L));
assertThat(value.asDouble(20.25), is(20.25));
assertThat(value.asString("default"), is("default"));
assertThat(value.asUtf8("utf8".getBytes("UTF-8")), is("utf8".getBytes("UTF-8")));
assertThat(value.asData("data".getBytes("UTF-8")), is("data".getBytes("UTF-8")));
assertThat(new Entries().traverse(value).entries.size(), is(0));
assertThat(new Fields().traverse(value).fields.size(), is(0));
assertThat(value.entry(0).valid(), is(false));
assertThat(value.field("foo").valid(), is(false));
assertThat(new Entries().iterate(value).entries.size(), is(0));
assertThat(new Fields().iterate(value).fields.size(), is(0));
}
@Test
public void testLongValue() throws Exception {
final Inspector value = getData().entry(2);
assertThat(value.valid(), is(true));
assertThat(value.type(), is(Type.LONG));
assertThat(value.entryCount(), is(0));
assertThat(value.fieldCount(), is(0));
assertThat(new Try(){void f() { value.asBool(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asLong(), is(10L));
assertThat(value.asDouble(), is(10.0));
assertThat(new Try(){void f() { value.asString(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asUtf8(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asData(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asBool(true), is(true));
assertThat(value.asLong(50), is(10L));
assertThat(value.asDouble(20.25), is(10.0));
assertThat(value.asString("default"), is("default"));
assertThat(value.asUtf8("utf8".getBytes("UTF-8")), is("utf8".getBytes("UTF-8")));
assertThat(value.asData("data".getBytes("UTF-8")), is("data".getBytes("UTF-8")));
assertThat(new Entries().traverse(value).entries.size(), is(0));
assertThat(new Fields().traverse(value).fields.size(), is(0));
assertThat(value.entry(0).valid(), is(false));
assertThat(value.field("foo").valid(), is(false));
assertThat(new Entries().iterate(value).entries.size(), is(0));
assertThat(new Fields().iterate(value).fields.size(), is(0));
}
@Test
public void testDoubleValue() throws Exception {
final Inspector value = getData().entry(3);
assertThat(value.valid(), is(true));
assertThat(value.type(), is(Type.DOUBLE));
assertThat(value.entryCount(), is(0));
assertThat(value.fieldCount(), is(0));
assertThat(new Try(){void f() { value.asBool(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asLong(), is(5L));
assertThat(value.asDouble(), is(5.75));
assertThat(new Try(){void f() { value.asString(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asUtf8(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asData(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asBool(true), is(true));
assertThat(value.asLong(50), is(5L));
assertThat(value.asDouble(20.25), is(5.75));
assertThat(value.asString("default"), is("default"));
assertThat(value.asUtf8("utf8".getBytes("UTF-8")), is("utf8".getBytes("UTF-8")));
assertThat(value.asData("data".getBytes("UTF-8")), is("data".getBytes("UTF-8")));
assertThat(new Entries().traverse(value).entries.size(), is(0));
assertThat(new Fields().traverse(value).fields.size(), is(0));
assertThat(value.entry(0).valid(), is(false));
assertThat(value.field("foo").valid(), is(false));
assertThat(new Entries().iterate(value).entries.size(), is(0));
assertThat(new Fields().iterate(value).fields.size(), is(0));
}
@Test
public void testStringValue() throws Exception {
final Inspector value = getData().entry(4).field("foo");
assertThat(value.valid(), is(true));
assertThat(value.type(), is(Type.STRING));
assertThat(value.entryCount(), is(0));
assertThat(value.fieldCount(), is(0));
assertThat(new Try(){void f() { value.asBool(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asLong(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asDouble(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asString(), is("foo_value"));
assertThat(value.asUtf8(), is("foo_value".getBytes("UTF-8")));
assertThat(new Try(){void f() { value.asData(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asBool(true), is(true));
assertThat(value.asLong(50), is(50L));
assertThat(value.asDouble(20.25), is(20.25));
assertThat(value.asString("default"), is("foo_value"));
assertThat(value.asUtf8("utf8".getBytes("UTF-8")), is("foo_value".getBytes("UTF-8")));
assertThat(value.asData("data".getBytes("UTF-8")), is("data".getBytes("UTF-8")));
assertThat(new Entries().traverse(value).entries.size(), is(0));
assertThat(new Fields().traverse(value).fields.size(), is(0));
assertThat(value.entry(0).valid(), is(false));
assertThat(value.field("foo").valid(), is(false));
assertThat(new Entries().iterate(value).entries.size(), is(0));
assertThat(new Fields().iterate(value).fields.size(), is(0));
}
@Test
public void testDataValue() throws Exception {
final Inspector value = getData().entry(4).field("bar");
assertThat(value.valid(), is(true));
assertThat(value.type(), is(Type.DATA));
assertThat(value.entryCount(), is(0));
assertThat(value.fieldCount(), is(0));
assertThat(new Try(){void f() { value.asBool(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asLong(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asDouble(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asString(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asUtf8(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asData(), is(new byte[] { (byte)4, (byte)2 }));
assertThat(value.asBool(true), is(true));
assertThat(value.asLong(50), is(50L));
assertThat(value.asDouble(20.25), is(20.25));
assertThat(value.asString("default"), is("default"));
assertThat(value.asUtf8("utf8".getBytes("UTF-8")), is("utf8".getBytes("UTF-8")));
assertThat(value.asData("data".getBytes("UTF-8")), is(new byte[] { (byte)4, (byte)2 }));
assertThat(new Entries().traverse(value).entries.size(), is(0));
assertThat(new Fields().traverse(value).fields.size(), is(0));
assertThat(value.entry(0).valid(), is(false));
assertThat(value.field("foo").valid(), is(false));
assertThat(new Entries().iterate(value).entries.size(), is(0));
assertThat(new Fields().iterate(value).fields.size(), is(0));
}
@Test
public void testArrayValue() throws Exception {
final Inspector value = getData();
List<Inspector> expected_entries = new Entries()
.add(value.entry(0))
.add(value.entry(1))
.add(value.entry(2))
.add(value.entry(3))
.add(value.entry(4)).entries;
assertThat(value.valid(), is(true));
assertThat(value.type(), is(Type.ARRAY));
assertThat(value.entryCount(), is(expected_entries.size()));
assertThat(value.fieldCount(), is(0));
assertThat(new Try(){void f() { value.asBool(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asLong(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asDouble(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asString(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asUtf8(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asData(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asBool(true), is(true));
assertThat(value.asLong(50), is(50L));
assertThat(value.asDouble(20.25), is(20.25));
assertThat(value.asString("default"), is("default"));
assertThat(value.asUtf8("utf8".getBytes("UTF-8")), is("utf8".getBytes("UTF-8")));
assertThat(value.asData("data".getBytes("UTF-8")), is("data".getBytes("UTF-8")));
assertThat(new Entries().traverse(value).entries, is(expected_entries));
assertThat(new Fields().traverse(value).fields.size(), is(0));
assertThat(value.entry(10).valid(), is(false));
assertThat(value.field("foo").valid(), is(false));
assertThat(new Entries().iterate(value).entries, is(expected_entries));
assertThat(new Fields().iterate(value).fields.size(), is(0));
}
@Test
public void testObjectValue() throws Exception {
final Inspector value = getData().entry(4);
Map<String,Inspector> expected_fields = new Fields()
.add("foo", value.field("foo"))
.add("bar", value.field("bar"))
.add("nested", value.field("nested")).fields;
assertThat(value.valid(), is(true));
assertThat(value.type(), is(Type.OBJECT));
assertThat(value.entryCount(), is(0));
assertThat(value.fieldCount(), is(expected_fields.size()));
assertThat(new Try(){void f() { value.asBool(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asLong(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asDouble(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asString(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asUtf8(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(new Try(){void f() { value.asData(); }}.call(), instanceOf(IllegalStateException.class));
assertThat(value.asBool(true), is(true));
assertThat(value.asLong(50), is(50L));
assertThat(value.asDouble(20.25), is(20.25));
assertThat(value.asString("default"), is("default"));
assertThat(value.asUtf8("utf8".getBytes("UTF-8")), is("utf8".getBytes("UTF-8")));
assertThat(value.asData("data".getBytes("UTF-8")), is("data".getBytes("UTF-8")));
assertThat(new Entries().traverse(value).entries.size(), is(0));
assertThat(new Fields().traverse(value).fields, is(expected_fields));
assertThat(value.entry(0).valid(), is(false));
assertThat(value.field("bogus").valid(), is(false));
assertThat(new Entries().iterate(value).entries.size(), is(0));
assertThat(new Fields().iterate(value).fields, is(expected_fields));
}
@Test
public void testNesting() throws Exception {
Inspector value1 = getData().entry(4).field("nested");
assertThat(value1.type(), is(Type.ARRAY));
Inspector value2 = value1.entry(0);
assertThat(value2.type(), is(Type.OBJECT));
Inspector value3 = value2.field("hidden");
assertThat(value3.type(), is(Type.STRING));
assertThat(value3.asString(), is("treasure"));
}
}
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