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expressions_test.go
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expressions_test.go
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// Copyright 2023 Google LLC
//
// 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 parser
import (
"context"
"errors"
"fmt"
"strings"
"testing"
"github.com/google/cql/internal/embeddata"
"github.com/google/cql/model"
"github.com/google/cql/types"
"github.com/google/go-cmp/cmp"
"github.com/lithammer/dedent"
)
func TestParserExpressions_Errors(t *testing.T) {
tests := []struct {
name string
cql string
errContains []string
errCount int
}{
{
name: "Invalid CQL",
cql: "abcdefg",
errContains: []string{"could not resolve", "abcdefg"},
errCount: 1,
},
{
name: "Interval Selector High And Low Type Mismatch",
cql: `Interval[3.0, @2015-01-01)`,
errContains: []string{"could not resolve Interval(System.Decimal, System.Date)"},
errCount: 1,
},
{
name: "List Selector With Type Specifier No Matching Types",
cql: `List<Long>{'Hello', 5}`,
errContains: []string{"unable to convert list element (System.String) to the declared List type specifier element type (System.Long)"},
errCount: 1,
},
{
name: "Instance Selector not implicitly convertible",
cql: "Quantity {value: 'wrong type', unit: 'mg'}",
errContains: []string{`element "value" in System.Quantity should be implicitly convertible to type System.Decimal, but instead received type System.String`},
errCount: 1,
},
{
name: "Invalid Date",
cql: "@2015-99",
errContains: []string{`want a layout like @YYYY-MM-DD`},
errCount: 1,
},
{
name: "Invalid DateTime",
cql: "@2015-21-13T99",
errContains: []string{`want a layout like @YYYY-MM-DDThh:mm:ss.fff(Z|(+/-hh:mm)`},
errCount: 1,
},
{
name: "Invalid Time",
cql: "@T99",
errContains: []string{`want a layout like @Thh:mm:ss.fff`},
errCount: 1,
},
{
name: "Instance Selector incorrect field",
cql: "Quantity {bogusfield: 'wrong type', unit: 'mg'}",
errContains: []string{`property "bogusfield" not found in Parent Type "System.Quantity" property not found in data model`},
errCount: 1,
},
{
name: "Resource not retrievable",
cql: `[ObservationStatus]`,
errContains: []string{"tried to retrieve type Named<FHIR.ObservationStatus>, but this type is not retrievable"},
errCount: 1,
},
{
name: "Retrieve unknown type",
cql: `[randomtype]`,
errContains: []string{"not found in data model", "retrieves cannot be"},
errCount: 2,
},
{
name: "Case No Comparand When Not Boolean",
cql: `
case
when 'Apple' then 4
else 5
end`,
errContains: []string{"could not implicitly convert System.String to a System.Boolean"},
errCount: 1,
},
{
name: "Case with Comparand not Convertible",
cql: `
case 5
when 'Apple' then 4
else 5
end`,
errContains: []string{"could not implicitly convert then comparand System.Integer and cases System.String to the same type"},
errCount: 1,
},
{
name: "If then statement with non boolean condition",
cql: `if 42 then 3 else 4`,
errContains: []string{"could not implicitly convert"},
errCount: 1,
},
{
name: "Where Clause Not Implicitly Convertible To Boolean",
cql: `({1, 2, 3}) P where P`,
errContains: []string{"result of a where clause"},
errCount: 1,
},
{
name: "maximum String",
cql: "maximum String",
errContains: []string{"unsupported type for maximumString"},
errCount: 1,
},
{
name: "Concept Instance codes not specified",
cql: "Concept{ }",
errContains: []string{"no viable alternative at input 'Concept{ }'"},
errCount: 1,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
_, err := newFHIRParser(t).Libraries(context.Background(), wrapInLib(t, test.cql), Config{})
if err == nil {
t.Fatal("Parse succeeded, wanted error")
}
var pe *LibraryErrors
if ok := errors.As(err, &pe); ok {
for _, ec := range test.errContains {
if !strings.Contains(pe.Error(), ec) {
t.Errorf("Returned error (%s) did not contain expected string (%s)",
pe.Error(), ec)
}
}
if len(pe.Errors) != test.errCount {
t.Errorf("Returned error (%s) had (%d) errors but expected (%d)",
err.Error(), len(pe.Errors), test.errCount)
}
} else {
t.Errorf("Unexpected test error (%s).", err.Error())
}
})
}
}
func TestParserExpressions(t *testing.T) {
tests := []struct {
name string
desc string
cql string
want model.IExpression
}{
{
name: "Case No Comparand",
cql: `
case
when true then 4
else 5
end`,
want: &model.Case{
Comparand: nil,
CaseItem: []*model.CaseItem{
&model.CaseItem{
When: model.NewLiteral("true", types.Boolean),
Then: model.NewLiteral("4", types.Integer),
},
},
Else: model.NewLiteral("5", types.Integer),
Expression: model.ResultType(types.Integer),
},
},
{
name: "Case With Comparand",
cql: `
case 4
when 5 then 6
else 7
end`,
want: &model.Case{
Comparand: model.NewLiteral("4", types.Integer),
CaseItem: []*model.CaseItem{
&model.CaseItem{
When: model.NewLiteral("5", types.Integer),
Then: model.NewLiteral("6", types.Integer),
},
},
Else: model.NewLiteral("7", types.Integer),
Expression: model.ResultType(types.Integer),
},
},
{
name: "Case With Comparand Implictly Converted",
cql: `
case 5.2
when 5 then 6
else 7
end`,
want: &model.Case{
Comparand: model.NewLiteral("5.2", types.Decimal),
CaseItem: []*model.CaseItem{
&model.CaseItem{
When: &model.ToDecimal{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("5", types.Integer),
Expression: model.ResultType(types.Decimal),
},
},
Then: model.NewLiteral("6", types.Integer),
},
},
Else: model.NewLiteral("7", types.Integer),
Expression: model.ResultType(types.Integer),
},
},
{
name: "Case Then Implicitly Converted",
cql: `
case 4
when 5 then 6.0
when 7 then 8
else 9L
end`,
want: &model.Case{
Comparand: model.NewLiteral("4", types.Integer),
CaseItem: []*model.CaseItem{
&model.CaseItem{
When: model.NewLiteral("5", types.Integer),
Then: model.NewLiteral("6.0", types.Decimal),
},
&model.CaseItem{
When: model.NewLiteral("7", types.Integer),
Then: &model.ToDecimal{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("8", types.Integer),
Expression: model.ResultType(types.Decimal),
},
},
},
},
Else: &model.ToDecimal{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("9L", types.Long),
Expression: model.ResultType(types.Decimal),
},
},
Expression: model.ResultType(types.Decimal),
},
},
{
name: "Case Then Implicitly Converted to Choice",
cql: `
case 4
when 5 then 6.0
when 7 then 'Apple'
else 9L
end`,
want: &model.Case{
Comparand: model.NewLiteral("4", types.Integer),
CaseItem: []*model.CaseItem{
&model.CaseItem{
When: model.NewLiteral("5", types.Integer),
Then: &model.As{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("6.0", types.Decimal),
Expression: model.ResultType(&types.Choice{ChoiceTypes: []types.IType{types.Decimal, types.String, types.Long}}),
},
AsTypeSpecifier: &types.Choice{ChoiceTypes: []types.IType{types.Decimal, types.String, types.Long}},
},
},
&model.CaseItem{
When: model.NewLiteral("7", types.Integer),
Then: &model.As{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("Apple", types.String),
Expression: model.ResultType(&types.Choice{ChoiceTypes: []types.IType{types.Decimal, types.String, types.Long}}),
},
AsTypeSpecifier: &types.Choice{ChoiceTypes: []types.IType{types.Decimal, types.String, types.Long}},
},
},
},
Else: &model.As{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("9L", types.Long),
Expression: model.ResultType(&types.Choice{ChoiceTypes: []types.IType{types.Decimal, types.String, types.Long}}),
},
AsTypeSpecifier: &types.Choice{ChoiceTypes: []types.IType{types.Decimal, types.String, types.Long}},
},
Expression: model.ResultType(&types.Choice{ChoiceTypes: []types.IType{types.Decimal, types.String, types.Long}}),
},
},
{
name: "As",
cql: "15 as String",
want: &model.As{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("15", types.Integer),
Expression: model.ResultType(types.String),
},
AsTypeSpecifier: types.String,
Strict: false,
},
},
{
name: "Cast As",
cql: "cast 15 as String",
want: &model.As{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("15", types.Integer),
Expression: model.ResultType(types.String),
},
AsTypeSpecifier: types.String,
Strict: true,
},
},
{
name: "Is",
cql: "15 is String",
want: &model.Is{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("15", types.Integer),
Expression: model.ResultType(types.Boolean),
},
IsTypeSpecifier: types.String,
},
},
{
name: "If Then Else",
cql: "if 1 = 2 then 3 else 4",
want: &model.IfThenElse{
Condition: &model.Equal{
BinaryExpression: &model.BinaryExpression{
Operands: []model.IExpression{
model.NewLiteral("1", types.Integer),
model.NewLiteral("2", types.Integer),
},
Expression: model.ResultType(types.Boolean),
},
},
Then: model.NewLiteral("3", types.Integer),
Else: model.NewLiteral("4", types.Integer),
Expression: model.ResultType(types.Integer),
},
},
{
name: "If Then Else with implicit result types",
cql: "if 1 = 2 then 3.0 else 4",
want: &model.IfThenElse{
Condition: &model.Equal{
BinaryExpression: &model.BinaryExpression{
Operands: []model.IExpression{
model.NewLiteral("1", types.Integer),
model.NewLiteral("2", types.Integer),
},
Expression: model.ResultType(types.Boolean),
},
},
Then: model.NewLiteral("3.0", types.Decimal),
Else: &model.ToDecimal{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("4", types.Integer),
Expression: model.ResultType(types.Decimal),
},
},
Expression: model.ResultType(types.Decimal),
},
},
{
name: "predecessor of 1",
cql: "predecessor of 1",
want: &model.Predecessor{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("1", types.Integer),
Expression: model.ResultType(types.Integer),
},
},
},
{
name: "successor of @2023",
cql: "successor of @2023",
want: &model.Successor{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("@2023", types.Date),
Expression: model.ResultType(types.Date),
},
},
},
{
name: "Interval Low Inclusive High Exlusive",
cql: "Interval[10, 20)",
want: &model.Interval{
Expression: &model.Expression{
Element: &model.Element{ResultType: &types.Interval{PointType: types.Integer}},
},
Low: model.NewLiteral("10", types.Integer),
High: model.NewLiteral("20", types.Integer),
LowInclusive: true,
HighInclusive: false,
},
},
{
name: "Interval Low Inclusive High Inclusive",
cql: "Interval[10, 20]",
want: &model.Interval{
Expression: model.ResultType(&types.Interval{PointType: types.Integer}),
Low: model.NewLiteral("10", types.Integer),
High: model.NewLiteral("20", types.Integer),
LowInclusive: true,
HighInclusive: true,
},
},
{
name: "Interval Low Exclusive High Exclusive",
cql: "Interval(10, 20)",
want: &model.Interval{
Expression: model.ResultType(&types.Interval{PointType: types.Integer}),
Low: model.NewLiteral("10", types.Integer),
High: model.NewLiteral("20", types.Integer),
LowInclusive: false,
HighInclusive: false,
},
},
{
name: "Interval Low Exclusive High Inclusive",
cql: "Interval(10, 20]",
want: &model.Interval{
Expression: model.ResultType(&types.Interval{PointType: types.Integer}),
Low: model.NewLiteral("10", types.Integer),
High: model.NewLiteral("20", types.Integer),
LowInclusive: false,
HighInclusive: true,
},
},
{
name: "Interval Type Implicitly Converted",
cql: "Interval(10, null]",
want: &model.Interval{
Expression: model.ResultType(&types.Interval{PointType: types.Integer}),
Low: model.NewLiteral("10", types.Integer),
High: &model.As{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("null", types.Any),
Expression: model.ResultType(types.Integer),
},
AsTypeSpecifier: types.Integer,
},
LowInclusive: false,
HighInclusive: true,
},
},
{
name: "Interval low property",
cql: "Interval(10, 20].low",
want: &model.Property{
Source: &model.Interval{
Expression: model.ResultType(&types.Interval{PointType: types.Integer}),
Low: model.NewLiteral("10", types.Integer),
High: model.NewLiteral("20", types.Integer),
LowInclusive: false,
HighInclusive: true,
},
Path: "low",
Expression: model.ResultType(types.Integer),
},
},
{
name: "Interval high property",
cql: "Interval(10, 20].high",
want: &model.Property{
Source: &model.Interval{
Expression: model.ResultType(&types.Interval{PointType: types.Integer}),
Low: model.NewLiteral("10", types.Integer),
High: model.NewLiteral("20", types.Integer),
LowInclusive: false,
HighInclusive: true,
},
Path: "high",
Expression: model.ResultType(types.Integer),
},
},
{
name: "Interval highClosed property",
cql: "Interval(10, 20].highClosed",
want: &model.Property{
Source: &model.Interval{
Expression: model.ResultType(&types.Interval{PointType: types.Integer}),
Low: model.NewLiteral("10", types.Integer),
High: model.NewLiteral("20", types.Integer),
LowInclusive: false,
HighInclusive: true,
},
Path: "highClosed",
Expression: model.ResultType(types.Boolean),
},
},
{
name: "Interval lowClosed property",
cql: "Interval(10, 20].lowClosed",
want: &model.Property{
Source: &model.Interval{
Expression: model.ResultType(&types.Interval{PointType: types.Integer}),
Low: model.NewLiteral("10", types.Integer),
High: model.NewLiteral("20", types.Integer),
LowInclusive: false,
HighInclusive: true,
},
Path: "lowClosed",
Expression: model.ResultType(types.Boolean),
},
},
{
name: "Quoted Property",
cql: `Interval(10, 20]."lowClosed"`,
want: &model.Property{
Source: &model.Interval{
Expression: model.ResultType(&types.Interval{PointType: types.Integer}),
Low: model.NewLiteral("10", types.Integer),
High: model.NewLiteral("20", types.Integer),
LowInclusive: false,
HighInclusive: true,
},
Path: "lowClosed",
Expression: model.ResultType(types.Boolean),
},
},
{
name: "Quantity value property",
cql: "6'gm/cm3'.value",
want: &model.Property{
Source: &model.Quantity{
Value: 6,
Unit: "gm/cm3",
Expression: model.ResultType(types.Quantity),
},
Path: "value",
Expression: model.ResultType(types.Decimal),
},
},
{
name: "Tuple property",
cql: "Tuple{foo: 4}.foo",
want: &model.Property{
Source: &model.Tuple{
Elements: []*model.TupleElement{&model.TupleElement{Name: "foo", Value: model.NewLiteral("4", types.Integer)}},
Expression: model.ResultType(&types.Tuple{ElementTypes: map[string]types.IType{"foo": types.Integer}}),
},
Path: "foo",
Expression: model.ResultType(types.Integer),
},
},
{
name: "ListSelector No Type Specifier",
cql: "{'final', 'amended', 'corrected'}",
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: types.String}),
List: []model.IExpression{
model.NewLiteral("final", types.String),
model.NewLiteral("amended", types.String),
model.NewLiteral("corrected", types.String),
},
},
},
{
name: "ListSelector No Type Specifier with implicit conversions",
cql: "{10L, 1L, 20, 30}",
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: types.Long}),
List: []model.IExpression{
model.NewLiteral("10L", types.Long),
model.NewLiteral("1L", types.Long),
&model.ToLong{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("20", types.Integer),
Expression: model.ResultType(types.Long),
},
},
&model.ToLong{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("30", types.Integer),
Expression: model.ResultType(types.Long),
},
},
},
},
},
{
name: "ListSelector with Type Specifier",
cql: "List<Integer>{1, 2, 3}",
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: types.Integer}),
List: []model.IExpression{
model.NewLiteral("1", types.Integer),
model.NewLiteral("2", types.Integer),
model.NewLiteral("3", types.Integer),
},
},
},
{
name: "ListSelector With Type Specifier requiring implicit conversions",
cql: "List<Long>{1, 2}",
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: types.Long}),
List: []model.IExpression{
&model.ToLong{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("1", types.Integer),
Expression: model.ResultType(types.Long),
},
},
&model.ToLong{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("2", types.Integer),
Expression: model.ResultType(types.Long),
},
},
},
},
},
{
name: "ListSelector Empty List No TypeSpecifier",
cql: "{}",
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: types.Any}),
List: []model.IExpression{},
},
},
{
name: "ListSelector Empty with TypeSpecifier",
cql: "List<Integer>{}",
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: types.Integer}),
List: []model.IExpression{},
},
},
{
name: "ListSelector mixed",
cql: "{1, 'hi'}",
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: &types.Choice{ChoiceTypes: []types.IType{types.Integer, types.String}}}),
List: []model.IExpression{
&model.As{
UnaryExpression: &model.UnaryExpression{
Expression: model.ResultType(&types.Choice{ChoiceTypes: []types.IType{types.Integer, types.String}}),
Operand: model.NewLiteral("1", types.Integer),
},
AsTypeSpecifier: &types.Choice{ChoiceTypes: []types.IType{types.Integer, types.String}},
},
&model.As{
UnaryExpression: &model.UnaryExpression{
Expression: model.ResultType(&types.Choice{ChoiceTypes: []types.IType{types.Integer, types.String}}),
Operand: model.NewLiteral("hi", types.String),
},
AsTypeSpecifier: &types.Choice{ChoiceTypes: []types.IType{types.Integer, types.String}},
},
},
},
},
{
name: "Literal Int",
cql: "10",
want: model.NewLiteral("10", types.Integer),
},
{
name: "Literal Decimal",
cql: "10.1",
want: model.NewLiteral("10.1", types.Decimal),
},
{
name: "Literal String",
cql: "'str'",
want: model.NewLiteral("str", types.String),
},
{
name: "Literal Bool",
cql: "false",
want: model.NewLiteral("false", types.Boolean),
},
{
name: "Literal Long",
cql: "1000000L",
want: model.NewLiteral("1000000L", types.Long),
},
{
name: "Literal DateTime",
cql: "@2023-01-25T14:30:14.559",
want: model.NewLiteral("@2023-01-25T14:30:14.559", types.DateTime),
},
{
name: "Literal Date",
cql: "@2023-01-25",
want: model.NewLiteral("@2023-01-25", types.Date),
},
{
name: "Literal Time",
cql: "@T10:00:00.0",
want: model.NewLiteral("@T10:00:00.0", types.Time),
},
{
name: "Literal Quantity",
cql: "6'gm/cm3'",
want: &model.Quantity{Value: 6, Unit: "gm/cm3", Expression: model.ResultType(types.Quantity)},
},
{
name: "Literal Quantity temporal",
cql: "1 year",
want: &model.Quantity{Value: 1, Unit: "year", Expression: model.ResultType(types.Quantity)},
},
{
name: "Literal Quantity temporal plural",
cql: "6 years",
want: &model.Quantity{Value: 6, Unit: "year", Expression: model.ResultType(types.Quantity)},
},
{
name: "Literal Ratio",
cql: "1 'cm':2 'cm'",
want: &model.Ratio{
Numerator: model.Quantity{Value: 1, Unit: "cm", Expression: model.ResultType(types.Quantity)},
Denominator: model.Quantity{Value: 2, Unit: "cm", Expression: model.ResultType(types.Quantity)},
Expression: model.ResultType(types.Ratio),
},
},
{
name: "Time Unit Expression, 'date from'",
cql: dedent.Dedent(`date from @2013-01-01T00:00:00.0`),
want: &model.ToDate{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("@2013-01-01T00:00:00.0", types.DateTime),
Expression: model.ResultType(types.Date),
},
},
},
{
name: "Tuple Selector",
cql: "Tuple{code: 'foo', id: 4}",
want: &model.Tuple{
Expression: model.ResultType(&types.Tuple{ElementTypes: map[string]types.IType{"code": types.String, "id": types.Integer}}),
Elements: []*model.TupleElement{
&model.TupleElement{Name: "code", Value: model.NewLiteral("foo", types.String)},
&model.TupleElement{Name: "id", Value: model.NewLiteral("4", types.Integer)},
},
},
},
{
name: "Instance Selector",
cql: "Code{code: 'foo', system: 'bar', display: 'the foo', version: '1.0'}",
want: &model.Instance{
Expression: model.ResultType(types.Code),
ClassType: types.Code,
Elements: []*model.InstanceElement{
&model.InstanceElement{Name: "code", Value: model.NewLiteral("foo", types.String)},
&model.InstanceElement{Name: "system", Value: model.NewLiteral("bar", types.String)},
&model.InstanceElement{Name: "display", Value: model.NewLiteral("the foo", types.String)},
&model.InstanceElement{Name: "version", Value: model.NewLiteral("1.0", types.String)},
},
},
},
{
name: "Instance Selector with implicit conversion",
cql: "Quantity {value: 4, unit: 'mg'}",
want: &model.Instance{
Expression: model.ResultType(types.Quantity),
ClassType: types.Quantity,
Elements: []*model.InstanceElement{
&model.InstanceElement{
Name: "value",
Value: &model.ToDecimal{
UnaryExpression: &model.UnaryExpression{
Operand: model.NewLiteral("4", types.Integer),
Expression: model.ResultType(types.Decimal),
},
},
},
&model.InstanceElement{Name: "unit", Value: model.NewLiteral("mg", types.String)},
},
},
},
{
name: "NamedTypeSpecifier Quoted",
cql: `List<"System.String">{}`,
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: types.String}),
List: []model.IExpression{},
},
},
{
name: "NamedTypeSpecifier Qualfied and Quoted",
cql: `List<"System".String>{}`,
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: types.String}),
List: []model.IExpression{},
},
},
{
name: "NamedTypeSpecifier Qualfied and Unquoted",
cql: `List<System.String>{}`,
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: types.String}),
List: []model.IExpression{},
},
},
{
name: "NamedTypeSpecifier FHIR",
cql: `List<Patient>{}`,
want: &model.List{
Expression: model.ResultType(&types.List{ElementType: &types.Named{TypeName: "FHIR.Patient"}}),
List: []model.IExpression{},
},
},
{
name: "maximum Integer",
cql: "maximum Integer",
want: &model.MaxValue{ValueType: types.Integer, Expression: model.ResultType(types.Integer)},
},
{
name: "minimum Decimal",
cql: "minimum Decimal",
want: &model.MinValue{ValueType: types.Decimal, Expression: model.ResultType(types.Decimal)},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
parsedLibs, err := newFHIRParser(t).Libraries(context.Background(), wrapInLib(t, test.cql), Config{})
if err != nil {
t.Fatalf("Parse returned unexpected error: %v", err)
}
if diff := cmp.Diff(test.want, getTESTRESULTModel(t, parsedLibs)); diff != "" {
t.Errorf("Parse diff (-want +got):\n%s", diff)
}
})
}
}
func TestParserExpressions_SingleLibrary(t *testing.T) {
tests := []struct {
name string
desc string
cql string
want *model.Library
}{
{
name: "Choice Type Specifier",
cql: `define function "Population"(P Choice<Integer, String>): 4`,
want: &model.Library{
Statements: &model.Statements{
Defs: []model.IExpressionDef{
&model.FunctionDef{
ExpressionDef: &model.ExpressionDef{
Name: "Population",
AccessLevel: "PUBLIC",
Expression: model.NewLiteral("4", types.Integer),
Element: &model.Element{ResultType: types.Integer},
},
Operands: []model.OperandDef{{Name: "P", Expression: model.ResultType(&types.Choice{ChoiceTypes: []types.IType{types.Integer, types.String}})}},
},
},
},
},
},
{
name: "Tuple Type Specifier",
cql: `define function "Population"(P Tuple{apple Integer, banana String}): 4`,
want: &model.Library{
Statements: &model.Statements{
Defs: []model.IExpressionDef{
&model.FunctionDef{
ExpressionDef: &model.ExpressionDef{
Name: "Population",
AccessLevel: "PUBLIC",
Expression: model.NewLiteral("4", types.Integer),
Element: &model.Element{ResultType: types.Integer},
},
Operands: []model.OperandDef{{Name: "P", Expression: model.ResultType(&types.Tuple{ElementTypes: map[string]types.IType{"apple": types.Integer, "banana": types.String}})}},
},
},
},
},
},
{
name: "List Type Specifier",
cql: `define function "Population"(P List<Integer>): 4`,
want: &model.Library{
Statements: &model.Statements{
Defs: []model.IExpressionDef{
&model.FunctionDef{
ExpressionDef: &model.ExpressionDef{
Name: "Population",
AccessLevel: "PUBLIC",
Expression: model.NewLiteral("4", types.Integer),
Element: &model.Element{ResultType: types.Integer},
},
Operands: []model.OperandDef{{Name: "P", Expression: model.ResultType(&types.List{ElementType: types.Integer})}},
},
},
},
},
},
{
name: "Interval Type Specifier",
cql: `define function "Population"(P Interval<Integer>): 4`,
want: &model.Library{
Statements: &model.Statements{
Defs: []model.IExpressionDef{
&model.FunctionDef{
ExpressionDef: &model.ExpressionDef{
Name: "Population",
AccessLevel: "PUBLIC",
Expression: model.NewLiteral("4", types.Integer),
Element: &model.Element{ResultType: types.Integer},
},
Operands: []model.OperandDef{{Name: "P", Expression: model.ResultType(&types.Interval{PointType: types.Integer})}},
},
},
},
},
},
{
name: "Nested Alias Scopes",
cql: dedent.Dedent(`
using FHIR version '4.0.1'
define function ToConcept(concept FHIR.CodeableConcept):
System.Concept {
codes: concept.coding C return C,
display: concept.text.value
}`),
want: &model.Library{
Usings: []*model.Using{
&model.Using{
LocalIdentifier: "FHIR",
Version: "4.0.1",
URI: "http://hl7.org/fhir",
},
},
Statements: &model.Statements{
Defs: []model.IExpressionDef{
&model.FunctionDef{
ExpressionDef: &model.ExpressionDef{
Name: "ToConcept",
AccessLevel: "PUBLIC",
Context: "Patient",
Element: &model.Element{ResultType: types.Concept},
Expression: &model.Instance{
Expression: &model.Expression{Element: &model.Element{ResultType: types.Concept}},
ClassType: types.Concept,
Elements: []*model.InstanceElement{
&model.InstanceElement{
Name: "codes",
// We need to convert "concept.coding C return C" which returns a
// List<FHIR.Coding> to List<Coding> to match the codes element in the Concept
// structured type. To do that the parser inserts "(concept.coding C return C)
// X return all FHIRHelper.ToCode(X)"
Value: &model.Query{
Expression: model.ResultType(&types.List{ElementType: types.Code}),
Source: []*model.AliasedSource{
&model.AliasedSource{
Alias: "X",
Expression: model.ResultType(&types.List{ElementType: &types.Named{TypeName: "FHIR.Coding"}}),
// This is the "concept.coding C return C" query you see in the CQL which returns List<FHIR.Coding>
Source: &model.Query{
Expression: model.ResultType(&types.List{ElementType: &types.Named{TypeName: "FHIR.Coding"}}),
Source: []*model.AliasedSource{
&model.AliasedSource{
Alias: "C",
Expression: model.ResultType(&types.List{ElementType: &types.Named{TypeName: "FHIR.Coding"}}),
Source: &model.Property{
Source: &model.OperandRef{
Name: "concept",
Expression: model.ResultType(&types.Named{TypeName: "FHIR.CodeableConcept"}),
},
Path: "coding",
Expression: model.ResultType(&types.List{ElementType: &types.Named{TypeName: "FHIR.Coding"}}),
},
},
},
Return: &model.ReturnClause{
Element: &model.Element{ResultType: &types.Named{TypeName: "FHIR.Coding"}},