Increase test coverage

Author: fatso83

test/src/util/core/color-test.js

@@ -22,6 +22,27 @@ describe("color", function () {
         });
     });
 
+    describe("when process.stdout is present", function () {
+        it("should inspect stdout tty state", function () {
+            const originalProcess = globalThis.process;
+
+            try {
+                globalThis.process = {
+                    stdout: {
+                        isTTY: true,
+                    },
+                };
+
+                const color = new Colorizer();
+                const actual = color.red("lorem ipsum");
+
+                assert.contains(actual, "31m");
+            } finally {
+                globalThis.process = originalProcess;
+            }
+        });
+    });
+
     describe("when environment supports color", function () {
         let color;
 

test/src/util/core/is-property-configurable-test.js

@@ -0,0 +1,25 @@
+import referee from "@sinonjs/referee";
+import isPropertyConfigurable from "../../../../src/sinon/util/core/is-property-configurable.js";
+
+const assert = referee.assert;
+
+describe("is-property-configurable", function () {
+    it("returns true when the property is missing", function () {
+        const actual = isPropertyConfigurable({}, "missing");
+
+        assert.isTrue(actual);
+    });
+
+    it("returns false when the property is not configurable", function () {
+        const object = {};
+
+        Object.defineProperty(object, "locked", {
+            configurable: false,
+            value: 1,
+        });
+
+        const actual = isPropertyConfigurable(object, "locked");
+
+        assert.isFalse(actual);
+    });
+});