64 lines
1.6 KiB
Swift
64 lines
1.6 KiB
Swift
import PathKit
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import Spectre
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@testable import Stencil
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import XCTest
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extension Expectation {
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@discardableResult
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func toThrow<E: Error>() throws -> E {
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var thrownError: Error?
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do {
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_ = try expression()
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} catch {
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thrownError = error
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}
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if let thrownError = thrownError {
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if let thrownError = thrownError as? E {
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return thrownError
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} else {
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throw failure("\(thrownError) is not \(T.self)")
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}
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} else {
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throw failure("expression did not throw an error")
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}
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}
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}
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extension XCTestCase {
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func expectedSyntaxError(token: String, template: Template, description: String) -> TemplateSyntaxError {
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guard let range = template.templateString.range(of: token) else {
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fatalError("Can't find '\(token)' in '\(template)'")
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}
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let lexer = Lexer(templateString: template.templateString)
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let location = lexer.rangeLocation(range)
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let sourceMap = SourceMap(filename: template.name, location: location)
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let token = Token.block(value: token, at: sourceMap)
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return TemplateSyntaxError(reason: description, token: token, stackTrace: [])
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}
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}
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// MARK: - Test Types
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class ExampleLoader: Loader {
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func loadTemplate(name: String, environment: Environment) throws -> Template {
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if name == "example.html" {
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return Template(templateString: "Hello World!", environment: environment, name: name)
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}
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throw TemplateDoesNotExist(templateNames: [name], loader: self)
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}
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}
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class ErrorNode: NodeType {
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let token: Token?
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init(token: Token? = nil) {
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self.token = token
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}
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func render(_ context: Context) throws -> String {
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throw TemplateSyntaxError("Custom Error")
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}
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}
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