Add tests to verify direct asset name comparison

main_test.go

@@ -42,6 +42,41 @@ func TestDownloadReleaseAssets(t *testing.T) {
 	}
 }
 
+func TestDownloadReleaseAssetsWithRegexCharacters(t *testing.T) {
+	tmpDir := mkTempDir(t)
+	logger := GetProjectLogger()
+	testInst := GitHubInstance{
+		BaseUrl: "github.com",
+		ApiUrl:  "api.github.com",
+	}
+
+	const githubRepoUrl = "https://github.com/gruntwork-io/fetch-test-public"
+	const releaseAsset = "hello+world.txt"
+	const assetVersion = "v0.0.4"
+
+	githubRepo, err := ParseUrlIntoGitHubRepo(githubRepoUrl, "", testInst)
+	if err != nil {
+		t.Fatalf("Failed to parse sample release asset GitHub URL into Fetch GitHubRepo struct: %s", err)
+	}
+
+	assetPaths, fetchErr := downloadReleaseAssets(logger, releaseAsset, tmpDir, githubRepo, assetVersion, false)
+	if fetchErr != nil {
+		t.Fatalf("Failed to download release asset: %s", fetchErr)
+	}
+
+	if len(assetPaths) != 1 {
+		t.Fatalf("Expected to download 1 assets, not %d", len(assetPaths))
+	}
+
+	assetPath := assetPaths[0]
+
+	if _, err := os.Stat(assetPath); os.IsNotExist(err) {
+		t.Fatalf("Downloaded file should exist at %s", assetPath)
+	} else {
+		fmt.Printf("Verified the downloaded asset exists at %s\n", assetPath)
+	}
+}
+
 func TestInvalidReleaseAssetsRegex(t *testing.T) {
 	tmpDir := mkTempDir(t)
 	logger := GetProjectLogger()