Add test for go files outside of go modules

Author: owen-mc

go/ql/integration-tests/all-platforms/go/single-go-mod-and-go-files-not-under-it/diagnostics.expected

@@ -0,0 +1,28 @@
+{
+  "markdownMessage": "1 package could not be found:\n\n`subdir/subsubdir`.\n\nDefinitions in those packages may not be recognized by CodeQL, and files that use them may only be partially analyzed.\n\nCheck that the paths are correct and make sure any private packages can be accessed. If any of the packages are present in the repository then you may need a [custom build command](https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-the-codeql-workflow-for-compiled-languages).",
+  "severity": "warning",
+  "source": {
+    "extractorName": "go",
+    "id": "go/autobuilder/package-not-found",
+    "name": "Some packages could not be found"
+  },
+  "visibility": {
+    "cliSummaryTable": true,
+    "statusPage": true,
+    "telemetry": true
+  }
+}
+{
+  "markdownMessage": "Go files were found outside of the Go modules corresponding to these `go.mod` files.\n\n`subdir/go.mod`",
+  "severity": "note",
+  "source": {
+    "extractorName": "go",
+    "id": "go/autobuilder/go-files-outside-go-modules",
+    "name": "Go files were found outside Go modules"
+  },
+  "visibility": {
+    "cliSummaryTable": false,
+    "statusPage": false,
+    "telemetry": true
+  }
+}

go/ql/integration-tests/all-platforms/go/single-go-mod-and-go-files-not-under-it/main.go

@@ -0,0 +1,9 @@
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	fmt.Println("Hello, world!")
+}

go/ql/integration-tests/all-platforms/go/single-go-mod-and-go-files-not-under-it/subdir/go.mod

@@ -0,0 +1,5 @@
+go 1.14
+
+require golang.org/x/net v0.0.0-20200505041828-1ed23360d12c
+
+module subdir

go/ql/integration-tests/all-platforms/go/single-go-mod-and-go-files-not-under-it/subdir/go.sum

@@ -0,0 +1,7 @@
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/net v0.0.0-20200505041828-1ed23360d12c h1:zJ0mtu4jCalhKg6Oaukv6iIkb+cOvDrajDH9DH46Q4M=
+golang.org/x/net v0.0.0-20200505041828-1ed23360d12c/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd h1:xhmwyvizuTgC2qz7ZlMluP20uW+C3Rm0FD/WLDX8884=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

go/ql/integration-tests/all-platforms/go/single-go-mod-and-go-files-not-under-it/subdir/subsubdir/add.go

@@ -0,0 +1,5 @@
+package subsubdir
+
+func Add(a, b int) int {
+	return a + b
+}

go/ql/integration-tests/all-platforms/go/single-go-mod-and-go-files-not-under-it/subdir/test.go

@@ -0,0 +1,14 @@
+package subdir
+
+import (
+	"subdir/subsubdir"
+
+	"golang.org/x/net/ipv4"
+)
+
+func test() {
+
+	header := ipv4.Header{}
+	header.Version = subsubdir.Add(2, 2)
+
+}

go/ql/integration-tests/all-platforms/go/single-go-mod-and-go-files-not-under-it/test.expected

@@ -0,0 +1,2 @@
+| Extraction failed in subdir/test.go with error cannot find package "subdir/subsubdir" in any of:\n\t(absolute path)/src/subdir/subsubdir (from $GOROOT)\n\t(absolute path)/src/subdir/subsubdir (from $GOPATH) | 2 |
+| Extraction failed in subdir/test.go with error could not import subdir/subsubdir (invalid package name: "") | 2 |

go/ql/integration-tests/all-platforms/go/single-go-mod-and-go-files-not-under-it/test.py

@@ -0,0 +1,8 @@
+import sys
+
+from create_database_utils import *
+from diagnostics_test_utils import *
+
+run_codeql_database_create([], lang="go")
+
+check_diagnostics()

go/ql/integration-tests/all-platforms/go/single-go-mod-and-go-files-not-under-it/test.ql

@@ -0,0 +1,6 @@
+import go
+import semmle.go.DiagnosticsReporting
+
+from string msg, int sev
+where reportableDiagnostics(_, msg, sev)
+select msg, sev