public void Left_join_empty_tables()
{
var table1 = new HashTable <string>(10);
var table2 = new HashTable <string>(10);
var join = new LeftJoin(table1, table2);
var result = join.LeftJoinTables();
Assert.Empty(result);
Assert.False(result.Contains(""));
}
public void Left_join_tables_left_joins_tables(string x)
{
var table1 = new HashTable <string>(10);
table1.Add("fond", "enamored");
table1.Add("wrath", "anger");
table1.Add("diligent", "employed");
table1.Add("outfit", "garb");
table1.Add("guide", "usher");
var table2 = new HashTable <string>(10);
table2.Add("fond", "averse");
table2.Add("wrath", "delight");
table2.Add("diligent", "idle");
table2.Add("guide", "follow");
table2.Add("flow", "jam");
var join = new LeftJoin(table1, table2);
var expect = new HashTable <List <string> >(10);
expect.Add("fond", new List <string>()
{
"enamored", "averse"
});;
expect.Add("wrath", new List <string>()
{
"anger", "delight"
});
expect.Add("diligent", new List <string>()
{
"employed", "idle"
});
expect.Add("outfit", new List <string>()
{
"garb"
});
expect.Add("guide", new List <string>()
{
"usher", "follow"
});
var result = join.LeftJoinTables();
Assert.True(expect.TryFind(x, out var y));
Assert.True(result.TryFind(x, out var z));
//Assert.Equal(expect, result);
Assert.Equal(y, z);
Assert.Equal(expect[x], result[x]);
}