Handle libraries.Load() failure

The issue that caused the failure will be caught by a specific check, so the other checks that use the data returned by
this function should simply not run.

Author: per1234

Diff for: check/checkfunctions/library.go

@@ -38,14 +38,23 @@ import (
 
 // LibraryPropertiesFormat checks for invalid library.properties format.
 func LibraryPropertiesFormat() (result checkresult.Type, output string) {
+	if checkdata.LoadedLibrary() != nil && checkdata.LoadedLibrary().IsLegacy {
+		return checkresult.NotRun, ""
+	}
+
 	if checkdata.LibraryPropertiesLoadError() != nil {
 		return checkresult.Fail, checkdata.LibraryPropertiesLoadError().Error()
 	}
+
 	return checkresult.Pass, ""
 }
 
 // LibraryPropertiesMissing checks for presence of library.properties.
 func LibraryPropertiesMissing() (result checkresult.Type, output string) {
+	if checkdata.LoadedLibrary() == nil {
+		return checkresult.NotRun, ""
+	}
+
 	if checkdata.LoadedLibrary().IsLegacy {
 		return checkresult.Fail, ""
 	}
@@ -768,11 +777,7 @@ func LibraryPropertiesDotALinkageFieldInvalid() (result checkresult.Type, output
 
 // LibraryPropertiesDotALinkageFieldTrueWithFlatLayout checks whether a library using the "dot_a_linkage" feature has the required recursive layout type.
 func LibraryPropertiesDotALinkageFieldTrueWithFlatLayout() (result checkresult.Type, output string) {
-	if checkdata.LoadedLibrary() == nil {
-		return checkresult.NotRun, ""
-	}
-
-	if !checkdata.LibraryProperties().ContainsKey("dot_a_linkage") {
+	if checkdata.LoadedLibrary() == nil || !checkdata.LibraryProperties().ContainsKey("dot_a_linkage") {
 		return checkresult.NotRun, ""
 	}
 
@@ -905,7 +910,7 @@ func LibraryPropertiesMisspelledOptionalField() (result checkresult.Type, output
 
 // LibraryInvalid checks whether the provided path is a valid library.
 func LibraryInvalid() (result checkresult.Type, output string) {
-	if library.ContainsHeaderFile(checkdata.LoadedLibrary().SourceDir) {
+	if checkdata.LoadedLibrary() != nil && library.ContainsHeaderFile(checkdata.LoadedLibrary().SourceDir) {
 		return checkresult.Pass, ""
 	}
 
@@ -1120,7 +1125,7 @@ func MisspelledExtrasFolderName() (result checkresult.Type, output string) {
 
 // RecursiveLibraryWithUtilityFolder checks for presence of a `utility` subfolder in a recursive layout library.
 func RecursiveLibraryWithUtilityFolder() (result checkresult.Type, output string) {
-	if checkdata.LoadedLibrary().Layout == libraries.FlatLayout {
+	if checkdata.LoadedLibrary() == nil || checkdata.LoadedLibrary().Layout == libraries.FlatLayout {
 		return checkresult.NotRun, ""
 	}
 

Diff for: check/checkfunctions/library_test.go

@@ -84,6 +84,7 @@ func TestIncorrectLibraryPropertiesFileNameCase(t *testing.T) {
 
 func TestLibraryPropertiesMissing(t *testing.T) {
 	testTables := []libraryCheckFunctionTestTable{
+		{"Invalid non-legacy", "InvalidLibraryProperties", checkresult.NotRun, ""},
 		{"Legacy", "Legacy", checkresult.Fail, ""},
 		{"Flat non-legacy", "Flat", checkresult.Pass, ""},
 		{"Recursive", "Recursive", checkresult.Pass, ""},
@@ -104,6 +105,7 @@ func TestRedundantLibraryProperties(t *testing.T) {
 func TestLibraryPropertiesFormat(t *testing.T) {
 	testTables := []libraryCheckFunctionTestTable{
 		{"Invalid", "InvalidLibraryProperties", checkresult.Fail, ""},
+		{"Legacy", "Legacy", checkresult.NotRun, ""},
 		{"Valid", "Recursive", checkresult.Pass, ""},
 	}
 
@@ -242,6 +244,7 @@ func TestLibraryPropertiesPrecompiledFieldEnabledWithFlatLayout(t *testing.T) {
 
 func TestLibraryInvalid(t *testing.T) {
 	testTables := []libraryCheckFunctionTestTable{
+		{"Invalid library.properties", "InvalidLibraryProperties", checkresult.Fail, ""},
 		{"Invalid flat layout", "FlatWithoutHeader", checkresult.Fail, ""},
 		{"Invalid recursive layout", "RecursiveWithoutLibraryProperties", checkresult.Fail, ""},
 		{"Valid library", "Recursive", checkresult.Pass, ""},
@@ -383,6 +386,7 @@ func TestIncorrectExtrasFolderNameCase(t *testing.T) {
 
 func TestRecursiveLibraryWithUtilityFolder(t *testing.T) {
 	testTables := []libraryCheckFunctionTestTable{
+		{"Unable to load", "InvalidLibraryProperties", checkresult.NotRun, ""},
 		{"Flat", "Flat", checkresult.NotRun, ""},
 		{"Recursive with utility", "RecursiveWithUtilityFolder", checkresult.Fail, ""},
 		{"Recursive without utility", "Recursive", checkresult.Pass, ""},