Skip to content

Allow specifying entires in TestTable by columns #6410

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
losipiuk merged 1 commit into from
Dec 21, 2020
Merged

Allow specifying entires in TestTable by columns #6410

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
55 changes: 55 additions & 0 deletions presto-testing/src/main/java/io/prestosql/testing/sql/TestTable.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -17,11 +17,15 @@

import java.security.SecureRandom;
import java.util.List;
import java.util.Map;
import java.util.function.Function;

import static com.google.common.collect.ImmutableMap.toImmutableMap;
import static java.lang.Character.MAX_RADIX;
import static java.lang.Math.abs;
import static java.lang.Math.min;
import static java.lang.String.format;
import static java.lang.String.join;

public class TestTable
implements AutoCloseable
Expand Down Expand Up @@ -60,6 +64,57 @@ public String getName()
return name;
}

public static TestTable fromColumns(SqlExecutor sqlExecutor, String namePrefix, Map<String, List<String>> columns)
{
return fromColumns(
sqlExecutor,
namePrefix,
columns,
column -> {
throw new IllegalArgumentException(String.format("Some values missing for column '%s'", column));
});
}

public static TestTable fromColumns(SqlExecutor sqlExecutor, String namePrefix, Map<String, List<String>> columns, String defaultValue)
{
return fromColumns(sqlExecutor, namePrefix, columns, column -> defaultValue);
}

private static TestTable fromColumns(SqlExecutor sqlExecutor, String namePrefix, Map<String, List<String>> columns, Function<String, String> defaultValueSupplier)
{
int rowsCount = columns.values().stream()
.mapToInt(List::size)
.max().orElseThrow(() -> new IllegalArgumentException("please, give me at least one column to work with"));
return fromColumnValueProviders(
sqlExecutor,
namePrefix,
rowsCount,
columns.entrySet().stream()
.collect(toImmutableMap(
Map.Entry::getKey,
entry -> index -> {
if (index < entry.getValue().size()) {
return entry.getValue().get(index);
}
return defaultValueSupplier.apply(entry.getKey());
})));
}

public static TestTable fromColumnValueProviders(SqlExecutor sqlExecutor, String namePrefix, int rowsCount, Map<String, Function<Integer, String>> columnsValueProviders)
{
String tableDefinition = "(" + join(",", columnsValueProviders.keySet()) + ")";

ImmutableList.Builder<String> rows = ImmutableList.builder();
for (int rowId = 0; rowId < rowsCount; rowId++) {
ImmutableList.Builder<String> rowValues = ImmutableList.builder();
for (Function<Integer, String> columnValues : columnsValueProviders.values()) {
rowValues.add(columnValues.apply(rowId));
}
rows.add(join(",", rowValues.build()));
}
return new TestTable(sqlExecutor, namePrefix, tableDefinition, rows.build());
}

@Override
public void close()
{
Expand Down