Add tests of tryGetFilePath

extensions/ql-vscode/src/variant-analysis/sarif-processing.ts

@@ -168,7 +168,7 @@ export function tryGetRule(
   return undefined;
 }
 
-function tryGetFilePath(
+export function tryGetFilePath(
   physicalLocation: sarif.PhysicalLocation,
 ): string | undefined {
   const filePath = physicalLocation.artifactLocation?.uri;

extensions/ql-vscode/test/unit-tests/sarif-processing.test.ts

@@ -1,6 +1,7 @@
 import * as sarif from "sarif";
 import {
   extractAnalysisAlerts,
+  tryGetFilePath,
   tryGetRule,
   tryGetSeverity,
 } from "../../src/variant-analysis/sarif-processing";
@@ -288,6 +289,51 @@ describe("SARIF processing", () => {
     });
   });
 
+  describe("tryGetFilePath", () => {
+    it("should return value when uri is a file path", () => {
+      const physicalLocation: sarif.PhysicalLocation = {
+        artifactLocation: {
+          uri: "foo/bar",
+        },
+      };
+      expect(tryGetFilePath(physicalLocation)).toBe("foo/bar");
+    });
+
+    it("should return undefined when uri has a file scheme", () => {
+      const physicalLocation: sarif.PhysicalLocation = {
+        artifactLocation: {
+          uri: "file:/",
+        },
+      };
+      expect(tryGetFilePath(physicalLocation)).toBe(undefined);
+    });
+
+    it("should return undefined when uri is empty", () => {
+      const physicalLocation: sarif.PhysicalLocation = {
+        artifactLocation: {
+          uri: "",
+        },
+      };
+      expect(tryGetFilePath(physicalLocation)).toBe(undefined);
+    });
+
+    it("should return undefined if artifact location uri is undefined", () => {
+      const physicalLocation: sarif.PhysicalLocation = {
+        artifactLocation: {
+          uri: undefined,
+        },
+      };
+      expect(tryGetFilePath(physicalLocation)).toBe(undefined);
+    });
+
+    it("should return undefined if artifact location is undefined", () => {
+      const physicalLocation: sarif.PhysicalLocation = {
+        artifactLocation: undefined,
+      };
+      expect(tryGetFilePath(physicalLocation)).toBe(undefined);
+    });
+  });
+
   describe("tryGetSeverity", () => {
     it("should return undefined if no rule set", () => {
       const result = {