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import XCTest
@testable import WIT
class ValidationTests: XCTestCase {
func assertDiagnostics(_ text: String, expected: [String], line: UInt = #line) throws {
let packageResolver = PackageResolver()
var lexer = Lexer(cursor: .init(input: text))
let sourceFile = try SourceFileSyntax.parse(lexer: &lexer, fileName: "test.wit")
let pkg = try packageResolver.register(packageSources: [sourceFile])
let context = SemanticsContext(rootPackage: pkg, packageResolver: packageResolver)
let diagnostics = try context.validate(package: pkg)
XCTAssertEqual(diagnostics.flatMap(\.value).map(\.message), expected, line: line)
}
func testInvalidTypeReferences() throws {
try assertDiagnostics(
"""
package foo:bar
interface x {
type x = invalid1
}
world y {
type y = invalid2
}
""",
expected: [
"Cannot find type 'invalid1' in scope",
"Cannot find type 'invalid2' in scope",
]
)
}
func testInvalidTypeReferencesInTypeDefinitions() throws {
try assertDiagnostics(
"""
package foo:bar
interface x {
record r1 {
f1: invalid1
}
variant v1 {
var-case1(invalid2),
var-case2,
}
union u1 {
invalid3,
}
type h1 = own<invalid4>
}
""",
expected: [
"Cannot find type 'invalid1' in scope",
"Cannot find type 'invalid2' in scope",
"Cannot find type 'invalid3' in scope",
"Cannot find type 'invalid4' in scope",
]
)
}
func testInvalidTypeReferencesInFunctions() throws {
try assertDiagnostics(
"""
package foo:bar
interface x {
f1: func() -> invalid1
f2: func(x: invalid2) -> invalid3
f3: func(a: invalid4, b: invalid5) -> (c: invalid6, d: invalid7)
}
""",
expected: [
"Cannot find type 'invalid1' in scope",
"Cannot find type 'invalid2' in scope",
"Cannot find type 'invalid3' in scope",
"Cannot find type 'invalid4' in scope",
"Cannot find type 'invalid5' in scope",
"Cannot find type 'invalid6' in scope",
"Cannot find type 'invalid7' in scope",
]
)
}
func testInvalidTypeReferencesInUse() throws {
try assertDiagnostics(
"""
package foo:bar
interface types {
type t1 = u8
}
interface x {
use types.{t1, invalid1}
use invalid2.{t2}
}
""",
expected: [
"Cannot find type 'invalid1' in scope",
"Cannot find interface 'invalid2' in scope",
]
)
}
func testValidateInlineInterface() throws {
try assertDiagnostics(
"""
package foo:bar
world x {
import y: interface {
type z = invalid1
type a = u8
type b = a
}
// a shoud not be visible here
type c = a
}
""",
expected: [
"Cannot find type 'invalid1' in scope",
"Cannot find type 'a' in scope",
]
)
try assertDiagnostics(
"""
package foo:bar
world x {
export y: interface {
type z = invalid1
type a = u8
type b = a
}
// a shoud not be visible here
type c = a
}
""",
expected: [
"Cannot find type 'invalid1' in scope",
"Cannot find type 'a' in scope",
]
)
}
func testValidateImportExport() throws {
try assertDiagnostics(
"""
package foo:bar
interface ok1 {}
interface ok2 {}
world x {
import ok1
import invalid1
export ok2
export invalid2
}
""",
expected: [
"Cannot find interface 'invalid1' in scope",
"Cannot find interface 'invalid2' in scope",
]
)
}
func testInvalidTopLevelUse() throws {
try assertDiagnostics(
"""
package foo:bar
use foo:my-pkg/my-iface
""",
expected: ["No such package 'foo:my-pkg'"]
)
try assertDiagnostics(
"""
package foo:bar
use foo
""",
expected: ["Cannot find interface 'foo' in scope"]
)
}
func testRecordRedeclaration() throws {
try assertDiagnostics(
"""
package foo:bar
interface x {
record r1 {
f1: u8,
f1: u8,
f2: u8,
f2: u32,
}
}
""",
expected: [
"Invalid redeclaration of 'f1'",
"Invalid redeclaration of 'f2'",
]
)
}
func testVariantRedeclaration() throws {
try assertDiagnostics(
"""
package foo:bar
interface x {
variant v1 {
var-case1,
var-case1,
var-case2(u8),
var-case2(u32),
}
}
""",
expected: [
"Invalid redeclaration of 'var-case1'",
"Invalid redeclaration of 'var-case2'",
]
)
}
}
|
