start GoTool tests

check/utils_test.go

@@ -15,3 +15,30 @@ func TestGoFiles(t *testing.T) {
 		t.Errorf("GoFiles(%q) = %v, want %v", "testfiles/", files, want)
 	}
 }
+
+var goToolTests = []struct {
+	name      string
+	dir       string
+	filenames []string
+	tool      []string
+	percent   float64
+	failed    []FileSummary
+	wantErr   bool
+}{
+	{"go vet", "testfiles/", []string{"testfiles/a.go", "testfiles/b.go", "testfiles/c.go"}, []string{"go", "tool", "vet"}, 1, []FileSummary{}, false},
+}
+
+func TestGoTool(t *testing.T) {
+	for _, tt := range goToolTests {
+		f, fs, err := GoTool(tt.dir, tt.filenames, tt.tool)
+		if err != nil && !tt.wantErr {
+			t.Fatal(err)
+		}
+		if f != tt.percent {
+			t.Errorf("[%s] GoTool percent = %f, want %f", tt.name, f, tt.percent)
+		}
+		if !reflect.DeepEqual(fs, tt.failed) {
+			t.Errorf("[%s] GoTool failed = %v, want %v", tt.name, fs, tt.failed)
+		}
+	}
+}