featurebase/pql/ast_test.go
2022-09-06 09:39:22 -07:00

271 lines
9 KiB
Go

// Copyright 2022 Molecula Corp. (DBA FeatureBase).
// SPDX-License-Identifier: Apache-2.0
package pql_test
import (
"strings"
"testing"
"github.com/featurebasedb/featurebase/v3/pql"
)
// Ensure call can be converted into a string.
func TestCall_String(t *testing.T) {
t.Run("Empty", func(t *testing.T) {
c := &pql.Call{Name: "Bitmap"}
if s := c.String(); s != `Bitmap()` {
t.Fatalf("unexpected string: %s", s)
}
})
t.Run("With Args", func(t *testing.T) {
c := &pql.Call{
Name: "Range",
Args: map[string]interface{}{
"other": "f",
"field0": &pql.Condition{Op: pql.GTE, Value: 10},
},
}
if s := c.String(); s != `Range(field0>=10, other="f")` {
t.Fatalf("unexpected string: %s", s)
}
})
}
// Ensure condition string with subject is correct.
func TestCondition_StringWithSubj(t *testing.T) {
subj := "subj"
for _, tt := range []struct {
op pql.Token
val interface{}
exp string
}{
{pql.BETWEEN, []interface{}{int64(4), int64(8)}, "4<=subj<=8"},
{pql.BETWEEN, []interface{}{uint64(5), uint64(9)}, "5<=subj<=9"},
{pql.BETWEEN, []interface{}{pql.NewDecimal(-401, 2), pql.NewDecimal(802, 1)}, "-4.01<=subj<=80.2"},
{pql.EQ, nil, "subj==null"},
{pql.NEQ, nil, "subj!=null"},
} {
c := &pql.Condition{
Op: tt.op,
Value: tt.val,
}
if sws := c.StringWithSubj(subj); sws != tt.exp {
t.Fatalf("invalid between string. expected: %s, got %s", tt.exp, sws)
}
}
}
func TestQuery_ExpandVars(t *testing.T) {
tests := []struct {
name string
input string
output string
vars map[string]interface{}
wantErr bool
}{
{
name: "ExpandRowEQInterior",
input: `count(row(animal=$var1))`,
output: `Count(Union(Row(animal="cat"), Row(animal="dog"), Row(animal="pig")))`,
vars: map[string]interface{}{"var1": []interface{}{"cat", "dog", "pig"}},
},
{
name: "ExpandRowEQInterior-NoValues",
input: `count(row(animal=$var1))`,
output: `Count(All())`,
vars: map[string]interface{}{"var1": []interface{}{}},
},
{
name: "ExpandRowEQExterior",
input: `row(animal=$var1)`,
output: `Union(Row(animal="cat"))`,
vars: map[string]interface{}{"var1": []interface{}{"cat"}},
},
{
name: "ExpandRowEQExterior-NoValues",
input: `row(animal=$var1)`,
output: `All()`,
vars: map[string]interface{}{"var1": []interface{}{}},
},
{
name: "ExpandRowGT",
input: `count(row(num>$var1))`,
output: `Count(Union(Row(num>5), Row(num>10)))`,
vars: map[string]interface{}{"var1": []interface{}{5, 10}},
},
{
name: "ExpandRowGT-NoValues",
input: `count(row(num>$var1))`,
output: `Count(All())`,
vars: map[string]interface{}{"var1": []interface{}{}},
},
{
name: "ExpandRowNOT",
input: `count(row(num!=$var1))`,
output: `Count(Union(Row(num!=5), Row(num!=10)))`,
vars: map[string]interface{}{"var1": []interface{}{5, 10}},
},
{
name: "ExpandRowLTString",
input: `count(row(num<$var1))`,
output: `Count(Union(Row(num<"cat"), Row(num<"dog")))`,
vars: map[string]interface{}{"var1": []interface{}{"cat", "dog"}},
},
{
name: "ExpandRowsInterior",
input: `GroupBy(rows($var1), limit=5)`,
output: `GroupBy(Rows(_field="cat"), Rows(_field="dog"), limit=5)`,
vars: map[string]interface{}{"var1": []interface{}{"cat", "dog"}},
},
{
name: "ExpandRowsInterior-NoValues",
input: `GroupBy(rows($var1), limit=5)`,
output: `GroupBy(), limit=5)`,
vars: map[string]interface{}{"var1": []interface{}{}},
wantErr: true,
},
{
name: "ExpandRowsExterior",
input: `rows($var1)`,
output: `Rows(_field="cat")` + "\n" + `Rows(_field="dog")`,
vars: map[string]interface{}{"var1": []interface{}{"cat", "dog"}},
},
{
name: "ExpandRowsExterior-NoValues",
input: `rows($var1)`,
output: ``,
vars: map[string]interface{}{"var1": []interface{}{}},
wantErr: true,
},
{
name: "ExpandRowAndRows",
input: `GroupBy(Rows($animal), limit=7, filter=Row(size=$size))`,
output: `GroupBy(Rows(_field="cat"), Rows(_field="dog"), filter=Union(Row(size="lg"), Row(size="md")), limit=7)`,
vars: map[string]interface{}{"animal": []interface{}{"cat", "dog"}, "size": []interface{}{"lg", "md"}},
},
{
name: "ExpandRowAndRows-NoValues1",
input: `GroupBy(Rows($animal), limit=7, filter=Row(size=$size))`,
output: `GroupBy(filter=All(), limit=7)`,
vars: map[string]interface{}{"animal": []interface{}{}, "size": []interface{}{}},
wantErr: true,
},
{
name: "ExpandRowAndRows-NoValues2",
input: `GroupBy(Rows($animal), limit=7, filter=Row(size=$size))`,
output: `GroupBy(Rows(_field="cat"), Rows(_field="dog"), filter=All(), limit=7)`,
vars: map[string]interface{}{"animal": []interface{}{"cat", "dog"}, "size": []interface{}{}},
},
{
name: "ExpandRowAndRows-NoValues3",
input: `GroupBy(Rows($animal), limit=7, filter=Row(size=$size))`,
output: `GroupBy(filter=Union(Row(size="lg"), Row(size="md")), limit=7)`,
vars: map[string]interface{}{"animal": []interface{}{}, "size": []interface{}{"lg", "md"}},
wantErr: true,
},
{
name: "ExpandBad",
input: `$animal`,
vars: map[string]interface{}{"animal": []interface{}{"cat", "dog"}, "columns": []interface{}{5, 10}},
wantErr: true,
},
{
name: "ExpandBad2",
input: `GroupBy($animal)`,
output: `Intersect(ConstRow(columns=[5, 10]), Union(Row(animal="cat"), Row(animal="dog")))`,
wantErr: true,
},
{
name: "ExpandAsCSV",
input: `Intersect(ConstRow(columns=$var2), Row(animal=$var1))`,
output: `Intersect(ConstRow(columns=[5,10]), Union(Row(animal="cat"), Row(animal="dog")))`,
vars: map[string]interface{}{"var1": []interface{}{"cat", "dog"}, "var2": []interface{}{5, 10}},
},
{
name: "ExpandAsCSV-NoValues",
input: `Intersect(ConstRow(columns=$var2), Row(animal=$var1))`,
output: `Intersect(ConstRow(columns=[]), All())`,
vars: map[string]interface{}{"var1": []interface{}{}, "var2": []interface{}{}},
},
{
name: "ExpandPercentile",
input: `Percentile(field="bytes", nth=99.0, filter=Row(level=$animal))`,
output: `Percentile(field="bytes", filter=Union(Row(level="cat"), Row(level="dog")), nth=99)`,
vars: map[string]interface{}{"animal": []interface{}{"cat", "dog"}, "columns": []interface{}{5, 10}},
},
{
name: "ExpandPercentile-NoValues",
input: `Percentile(field="bytes", nth=99.0, filter=Row(level=$animal))`,
output: `Percentile(field="bytes", filter=All(), nth=99)`,
vars: map[string]interface{}{"animal": []interface{}{}, "columns": []interface{}{}},
},
{
name: "Union-NoValues-1",
input: `Count(Union(row(x=$var1), row(y=$var2)), limit=5)`,
output: `Count(Union(All(), Union(Row(y="cat"), Row(y="dog"))), limit=5)`,
vars: map[string]interface{}{"var1": []interface{}{}, "var2": []interface{}{"cat", "dog"}},
},
{
name: "Rows-NoValues-1",
input: `groupby(rows($var1))`,
output: `GroupBy()`,
vars: map[string]interface{}{"var1": []interface{}{}},
wantErr: true,
},
{
name: "Extract-NoValues-1",
input: `Extract(Limit(Row(animals=$var1), limit=1000), Rows($var2))`,
output: `Extract(Limit(All(), limit=1000))`,
vars: map[string]interface{}{"var1": []interface{}{}, "var2": []interface{}{}},
},
{
name: "Extract-NoValues-2",
input: `Extract(Limit(Row(animals=$var1), limit=1000), Rows($var2))`,
output: `Extract(Limit(Union(Row(animals="a"), Row(animals="b")), limit=1000))`,
vars: map[string]interface{}{"var1": []interface{}{"a", "b"}, "var2": []interface{}{}},
},
{
name: "Extract-NoValues-3",
input: `Extract(Limit(Row(animals=$var1), limit=1000), Rows($var2))`,
output: `Extract(Limit(All(), limit=1000), Rows(_field="a"), Rows(_field="b"))`,
vars: map[string]interface{}{"var1": []interface{}{}, "var2": []interface{}{"a", "b"}},
},
{
name: "Extract-SomeValues-1",
input: `Extract(Union(Row(x=$var1), Row(y=$var2)), Rows(a), Rows(b))`,
output: `Extract(Union(Union(Row(x="cat"), Row(x="dog")), All()), Rows(_field="a"), Rows(_field="b"))`,
vars: map[string]interface{}{"var1": []interface{}{"cat", "dog"}, "var2": []interface{}{}},
},
{
name: "GroupBy-SomeValues-1",
input: `GroupBy(Rows(a), Rows(b), filter=Union(Row(x=$var1), Row(y=$var2)), limit=10)`,
output: `GroupBy(Rows(_field="a"), Rows(_field="b"), filter=Union(All(), Union(Row(y="cat"), Row(y="dog"))), limit=10)`,
vars: map[string]interface{}{"var1": []interface{}{}, "var2": []interface{}{"cat", "dog"}},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
q, err := pql.NewParser(strings.NewReader(tt.input)).Parse()
if err != nil {
if !tt.wantErr {
t.Errorf("Parse error = %v", err)
}
return
}
got, err := q.ExpandVars(tt.vars)
if err != nil {
if !tt.wantErr {
t.Errorf("Query.ExpandVars() error = %v", err)
}
return
}
if tt.output != got.String() && !tt.wantErr {
t.Errorf("got %v, want %v", got, tt.output)
}
if tt.wantErr {
t.Error("test succeeded, but expected error")
}
})
}
}