Adding test code for Stream::parseFloat(...)

aentinger · aentinger · commit 5c7276ad62b1 · 2020-11-05T12:43:12.000+01:00
diff --git a/test/CMakeLists.txt b/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_parseFloat.cpp
   src/Stream/test_parseInt.cpp
   src/Stream/test_readString.cpp
   src/Stream/test_readStringUntil.cpp
diff --git a/test/src/Stream/test_parseFloat.cpp b/test/src/Stream/test_parseFloat.cpp
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2020 Arduino.  All rights reserved.
+ */
+
+/**************************************************************************************
+ * INCLUDE
+ **************************************************************************************/
+
+#include <catch.hpp>
+
+#include <StreamMock.h>
+
+/**************************************************************************************
+ * TEST CODE
+ **************************************************************************************/
+
+TEST_CASE ("Testing parseFloat(LookaheadMode lookahead = SKIP_ALL, char ignore = NO_IGNORE_CHAR)", "[Stream-parseFloat-01]")
+{
+  StreamMock mock;
+
+  WHEN ("Only a integer (no comma) is contained in stream")
+  {
+    mock << "12";
+    REQUIRE(mock.parseFloat() == 12.0f);
+  }
+  WHEN ("A positive float is contained in stream")
+  {
+    mock << "12.34";
+    REQUIRE(mock.parseFloat() == 12.34f);
+  }
+  WHEN ("A negative float is contained in stream")
+  {
+    mock << "-12.34";
+    REQUIRE(mock.parseFloat() == -12.34f);
+  }
+  WHEN ("A float is prepended by digits")
+  {
+    mock << "abcdef12.34";
+    REQUIRE(mock.parseFloat() == 12.34f);
+  }
+  WHEN ("The integer is prepended by whitespace chars")
+  {
+    mock << "\r\n\t 12.34";
+    REQUIRE(mock.parseFloat() == 12.34f);
+  }
+}
+
+TEST_CASE ("Testing parseFloat(LookaheadMode lookahead = SKIP_NONE, char ignore = NO_IGNORE_CHAR)", "[Stream-parseFloat-02]")
+{
+  StreamMock mock;
+
+  WHEN ("Only a integer is contained in stream")
+  {
+    mock << "12.34";
+    REQUIRE(mock.parseFloat(SKIP_NONE) == 12.34f);
+    REQUIRE(mock.readString() == arduino::String(""));
+  }
+  WHEN ("The integer is prepended by digits")
+  {
+    mock << "abcdef12.34";
+    REQUIRE(mock.parseFloat(SKIP_NONE) == 0);
+    REQUIRE(mock.readString() == arduino::String("abcdef12.34"));
+  }
+  WHEN ("The integer is prepended by whitespace chars")
+  {
+    mock << "\r\n\t 12.34";
+    REQUIRE(mock.parseFloat(SKIP_NONE) == 0);
+    REQUIRE(mock.readString() == arduino::String("\r\n\t 12.34"));
+  }
+}
+
+TEST_CASE ("Testing parseFloat(LookaheadMode lookahead = SKIP_WHITESPACE, char ignore = NO_IGNORE_CHAR)", "[Stream-parseFloat-03]")
+{
+  StreamMock mock;
+
+  WHEN ("The integer is prepended by whitespace chars")
+  {
+    mock << "\r\n\t 12.34";
+    REQUIRE(mock.parseFloat(SKIP_WHITESPACE) == 12.34f);
+    REQUIRE(mock.readString() == arduino::String(""));
+  }
+}
+
+
+TEST_CASE ("Testing parseFloat(LookaheadMode lookahead = SKIP_ALL, char ignore = 'a')", "[Stream-parseFloat-04]")
+{
+  StreamMock mock;
+
+  WHEN ("A float is contained in stream")
+  {
+    mock << "12.34";
+    REQUIRE(mock.parseFloat(SKIP_ALL, 'a') == 12.34f);
+    REQUIRE(mock.readString() == arduino::String(""));
+  }
+  WHEN ("The float contains only ignore char values")
+  {
+    mock << "12a.3a4a";
+    REQUIRE(mock.parseFloat(SKIP_ALL, 'a') == 12.34f);
+    REQUIRE(mock.readString() == arduino::String(""));
+  }
+  WHEN ("The integer contains other than ignore chars")
+  {
+    mock << "1bed234";
+    REQUIRE(mock.parseFloat(SKIP_ALL, 'a') == 1.0f);
+    REQUIRE(mock.readString() == arduino::String("bed234"));
+  }
+}
