Mock logger in unit tests

1 files changed, 60 insertions, 0 deletions

diff --git a/app/src/test/kotlin/android/util/Log.java b/app/src/test/kotlin/android/util/Log.java
new file mode 100644
index 00000000..e7095563
--- /dev/null
+++ b/app/src/test/kotlin/android/util/Log.java
@@ -0,0 +1,60 @@
+package android.util;
+
+import java.util.Locale;
+
+/**
+ * Created by Allan Wang on 31/12/17.
+ */
+public class Log {
+
+    /**
+     * Priority constant for the println method; use Log.v.
+     */
+    public static final int VERBOSE = 2;
+
+    /**
+     * Priority constant for the println method; use Log.d.
+     */
+    public static final int DEBUG = 3;
+
+    /**
+     * Priority constant for the println method; use Log.i.
+     */
+    public static final int INFO = 4;
+
+    /**
+     * Priority constant for the println method; use Log.e.
+     */
+    public static final int ERROR = 6;
+
+    public static int e(String tag, String msg, Throwable t) {
+        System.err.println("ERROR: " + tag + ": " + msg + "\n\tThrowable: " + t.getMessage());
+        return 0;
+    }
+
+    public static int println(int priority, String tag, String message) {
+        switch (priority) {
+            case VERBOSE:
+                p("V", tag, message);
+                break;
+            case INFO:
+                p("I", tag, message);
+                break;
+            case DEBUG:
+                p("D", tag, message);
+                break;
+            case ERROR:
+                p("E", tag, message);
+                break;
+            default:
+                p("L " + priority, tag, message);
+                break;
+        }
+        return 0;
+    }
+
+    private static void p(String flag, String tag, String msg) {
+        System.out.println(String.format(Locale.CANADA, "%s: %s: %s", flag, tag, msg));
+    }
+
+}
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