Merge pull request github#12263 from geoffw0/flowsourceinline

Swift: Convert the flow sources test to inline expectations.

Author: geoffw0

swift/ql/lib/codeql/swift/dataflow/FlowSources.qll

@@ -28,7 +28,7 @@ abstract class RemoteFlowSource extends FlowSource { }
 /**
  * A data flow source of local user input that is defined through 'models as data'.
  */
-private class ExternalLocalFlowSource extends RemoteFlowSource {
+private class ExternalLocalFlowSource extends LocalFlowSource {
   ExternalLocalFlowSource() { sourceNode(this, "local") }
 
   override string getSourceType() { result = "external" }

swift/ql/test/library-tests/dataflow/flowsources/FlowSources.ql renamed to swift/ql/test/library-tests/dataflow/flowsources/FlowConfig.qll

@@ -34,6 +34,3 @@ class CustomTestSourcesCsv extends SourceModelCsv {
       ]
   }
 }
-
-from RemoteFlowSource source
-select source, concat(source.getSourceType(), ", ")

swift/ql/test/library-tests/dataflow/flowsources/FlowSources.expected

@@ -0,0 +1,25 @@
+import swift
+import TestUtilities.InlineExpectationsTest
+import FlowConfig
+
+string describe(FlowSource source) {
+  source instanceof RemoteFlowSource and result = "remote"
+  or
+  source instanceof LocalFlowSource and result = "local"
+}
+
+class FlowSourcesTest extends InlineExpectationsTest {
+  FlowSourcesTest() { this = "FlowSourcesTest" }
+
+  override string getARelevantTag() { result = "source" }
+
+  override predicate hasActualResult(Location location, string element, string tag, string value) {
+    exists(FlowSource source |
+      location = source.getLocation() and
+      location.getFile().getBaseName() != "" and
+      element = source.toString() and
+      tag = "source" and
+      value = describe(source)
+    )
+  }
+}

swift/ql/test/library-tests/dataflow/flowsources/FlowSourcesInline.expected

@@ -88,15 +88,15 @@ struct DataResponse<Success, Failure: Error> {
 
     let result: Result<Success, Failure>
 
-    var value: Success? { result.success } // SOURCE
+    var value: Success? { result.success } // $ source=remote
 }
 
 struct DownloadResponse<Success, Failure: Error> {
     let fileURL: URL?
 
     let result: Result<Success, Failure>
 
-    var value: Success? { result.success } // SOURCE
+    var value: Success? { result.success } // $ source=remote
 }
 
 typealias AFDataResponse<Success> = DataResponse<Success, AFError>
@@ -341,42 +341,42 @@ func testAlamofire() {
 
     AF.request("http://example.com/").response {
         response in
-        if let data = response.data { // SOURCE
+        if let data = response.data { // $ source=remote
             // ...
         }
     }
 
     AF.request("http://example.com/").response(responseSerializer: MySerializer()) {
         response in
-        if let obj = response.value { // SOURCE
+        if let obj = response.value { // $ source=remote
             // ...
         }
     }
 
     AF.request("http://example.com/").responseData {
         response in
-        if let data = response.value { // SOURCE
+        if let data = response.value { // $ source=remote
             // ...
         }
     }
 
     AF.request("http://example.com/").responseString {
         response in
-        if let str = response.value { // SOURCE
+        if let str = response.value { // $ source=remote
             // ...
         }
     }
 
     AF.request("http://example.com/").responseJSON {
         response in
-        if let json = response.value { // SOURCE
+        if let json = response.value { // $ source=remote
             // ...
         }
     }
 
     AF.request("http://example.com/").responseDecodable(of: MyDecodable.self) {
         response in
-        if let decodable = response.value { // SOURCE
+        if let decodable = response.value { // $ source=remote
             // ...
         }
     }
@@ -386,49 +386,49 @@ func testAlamofire() {
     AF.download("http://example.com/").response {
         response in
         if let path = response.fileURL?.path {
-            let str = try? String(contentsOfFile: path) // SOURCE
+            let str = try? String(contentsOfFile: path) // $ MISSING: source=remote $ SPURIOUS: source=local
             // ...
         }
     }
 
     AF.download("http://example.com/").response(responseSerializer: MySerializer()) {
         response in
-        if let obj = response.value { // SOURCE
+        if let obj = response.value { // $ source=remote
             // ...
         }
     }
 
     AF.download("http://example.com/").responseURL {
         response in
-        if let url = response.value { // just the URL [FALSE POSITIVE]
-            let str = try? String(contentsOf: url) // SOURCE
+        if let url = response.value { // $ SPURIOUS: source=remote (this is just the URL)
+            let str = try? String(contentsOf: url) // $ source=remote
             // ...
         }
     }
 
     AF.download("http://example.com/").responseData {
         response in
-        if let data = response.value { // SOURCE
+        if let data = response.value { // $ source=remote
             // ...
         }
     }
 
     AF.download("http://example.com/").responseString {
         response in
-        if let str = response.value { // SOURCE
+        if let str = response.value { // $ source=remote
             // ...
         }
     }
 
     AF.download("http://example.com/").responseJSON {
         response in
-        if let json = response.value { // SOURCE
+        if let json = response.value { // $ source=remote
         }
     }
 
     AF.download("http://example.com/").responseDecodable(of: MyDecodable.self) {
         response in
-        if let decodable = response.value { // SOURCE
+        if let decodable = response.value { // $ source=remote
             // ...
         }
     }
@@ -445,20 +445,20 @@ func testAlamofire() {
         // ...
     }
     // ...
-    let str = try? String(contentsOfFile: myPath) // SOURCE
+    let str = try? String(contentsOfFile: myPath) // $ MISSING: source=remote SPURIOUS: source=local
 
     // chaining
     //  - in practice there are a wide range of calls that can be chained through.
 
     AF.request("http://example.com/").response {
         response in
-        if let data = response.data { // SOURCE
+        if let data = response.data { // $ source=remote
             // ...
         }
     }
     .response {
         response in
-        if let data = response.data { // SOURCE
+        if let data = response.data { // $ source=remote
             // ...
         }
     }
@@ -470,7 +470,7 @@ func testAlamofire() {
         switch stream.event {
         case let .stream(result):
             switch result {
-            case let .success(data): // SOURCE [NOT DETECTED]
+            case let .success(data): // $ MISSING: source=remote
                 doSomethingWith(data)
                 // ...
             }
@@ -485,7 +485,7 @@ func testAlamofire() {
         switch stream.event {
         case let .stream(result):
             switch result {
-            case let .success(value): // SOURCE [NOT DETECTED]
+            case let .success(value): // $ MISSING: source=remote
                 doSomethingWith(value)
                 // ...
             }
@@ -500,7 +500,7 @@ func testAlamofire() {
         switch stream.event {
         case let .stream(result):
             switch result {
-            case let .success(value): // SOURCE [NOT DETECTED]
+            case let .success(value): // MISSING: source=remote
                 doSomethingWith(value)
                 // ...
             }
@@ -515,7 +515,7 @@ func testAlamofire() {
         switch stream.event {
         case let .stream(result):
             switch result {
-            case let .success(value): // SOURCE [NOT DETECTED]
+            case let .success(value): // MISSING: source=remote
                 doSomethingWith(value)
                 // ...
             }
@@ -530,7 +530,7 @@ func testAlamofire() {
     AF.streamRequest("http://example.com/").responseStream {
         stream in
         if case let .stream(myResult) = stream.event {
-            if case let .success(myData) = myResult { // SOURCE [NOT DETECTED]
+            if case let .success(myData) = myResult { // MISSING: source=remote
                 doSomethingWith(myData)
             }
         }
@@ -539,7 +539,7 @@ func testAlamofire() {
     AF.streamRequest("http://example.com/").responseStream {
         stream in
         if case let .stream(myResult) = stream.event {
-           doSomethingWith(myResult.success!) // SOURCE [NOT DETECTED]
+           doSomethingWith(myResult.success!) // MISSING: source=remote
         }
     }