Addding test code for Stream::parseInt(...)

Author: aentinger

test/CMakeLists.txt

@@ -50,6 +50,7 @@ set(TEST_SRCS
   src/Stream/test_find.cpp
   src/Stream/test_findUntil.cpp
   src/Stream/test_getTimeout.cpp
+  src/Stream/test_parseInt.cpp
   src/Stream/test_readString.cpp
   src/Stream/test_readStringUntil.cpp
   src/Stream/test_setTimeout.cpp

test/src/Stream/test_parseInt.cpp

@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2020 Arduino.  All rights reserved.
+ */
+
+/**************************************************************************************
+ * INCLUDE
+ **************************************************************************************/
+
+#include <catch.hpp>
+
+#include <StreamMock.h>
+
+/**************************************************************************************
+ * TEST CODE
+ **************************************************************************************/
+
+TEST_CASE ("Testing parseInt(LookaheadMode lookahead = SKIP_ALL, char ignore = NO_IGNORE_CHAR)", "[Stream-parseInt-01]")
+{
+  StreamMock mock;
+
+  WHEN ("Only a integer is contained in stream")
+  {
+    mock << "1234";
+    REQUIRE(mock.parseInt() == 1234);
+  }
+  WHEN ("The integer is prepended by digits")
+  {
+    mock << "abcdef1234";
+    REQUIRE(mock.parseInt() == 1234);
+  }
+  WHEN ("The integer is prepended by whitespace chars")
+  {
+    mock << "\r\n\t 1234";
+    REQUIRE(mock.parseInt() == 1234);
+  }
+}
+
+TEST_CASE ("Testing parseInt(LookaheadMode lookahead = SKIP_NONE, char ignore = NO_IGNORE_CHAR)", "[Stream-parseInt-02]")
+{
+  StreamMock mock;
+
+  WHEN ("Only a integer is contained in stream")
+  {
+    mock << "1234";
+    REQUIRE(mock.parseInt(SKIP_NONE) == 1234);
+    REQUIRE(mock.readString() == arduino::String(""));
+  }
+  WHEN ("The integer is prepended by digits")
+  {
+    mock << "abcdef1234";
+    REQUIRE(mock.parseInt(SKIP_NONE) == 0);
+    REQUIRE(mock.readString() == arduino::String("abcdef1234"));
+  }
+  WHEN ("The integer is prepended by whitespace chars")
+  {
+    mock << "\r\n\t 1234";
+    REQUIRE(mock.parseInt(SKIP_NONE) == 0);
+    REQUIRE(mock.readString() == arduino::String("\r\n\t 1234"));
+  }
+}
+
+TEST_CASE ("Testing parseInt(LookaheadMode lookahead = SKIP_WHITESPACE, char ignore = NO_IGNORE_CHAR)", "[Stream-parseInt-03]")
+{
+  StreamMock mock;
+
+  WHEN ("Only a integer is contained in stream")
+  {
+    mock << "1234";
+    REQUIRE(mock.parseInt(SKIP_WHITESPACE) == 1234);
+    REQUIRE(mock.readString() == arduino::String(""));
+  }
+  WHEN ("The integer is prepended by digits")
+  {
+    mock << "abcdef1234";
+    REQUIRE(mock.parseInt(SKIP_WHITESPACE) == 0);
+    REQUIRE(mock.readString() == arduino::String("abcdef1234"));
+  }
+  WHEN ("The integer is prepended by whitespace chars")
+  {
+    mock << "\r\n\t 1234";
+    REQUIRE(mock.parseInt(SKIP_WHITESPACE) == 1234);
+    REQUIRE(mock.readString() == arduino::String(""));
+  }
+}
+
+TEST_CASE ("Testing parseInt(LookaheadMode lookahead = SKIP_ALL, char ignore = 'a')", "[Stream-parseInt-04]")
+{
+  StreamMock mock;
+
+  WHEN ("Only a integer is contained in stream")
+  {
+    mock << "1234";
+    REQUIRE(mock.parseInt(SKIP_ALL, 'a') == 1234);
+    REQUIRE(mock.readString() == arduino::String(""));
+  }
+  WHEN ("The integer contains only ignore char values")
+  {
+    mock << "12a3a4a";
+    REQUIRE(mock.parseInt(SKIP_NONE, 'a') == 1234);
+    REQUIRE(mock.readString() == arduino::String(""));
+  }
+  WHEN ("The integer contains other than ignore chars")
+  {
+    mock << "1bed234";
+    REQUIRE(mock.parseInt(SKIP_NONE, 'a') == 1);
+    REQUIRE(mock.readString() == arduino::String("bed234"));
+  }
+}