ported testBuilderSketchWithMultilinePrototypes from legacy into inte…

…gration test

internal/integrationtest/compile_4/compile_test.go

@@ -109,6 +109,7 @@ func TestCompileOfProblematicSketches(t *testing.T) {
 		{"UserHardware", testBuilderWithUserHardware},
 		{"SketchWithEnumClass", testBuilderSketchWithEnumClass},
 		{"SketchWithExternC", testBuilderSketchWithExternC},
+		{"SketchWithMultilinePrototypes", testBuilderSketchWithMultilinePrototypes},
 	}.Run(t, env, cli)
 }
 
@@ -677,6 +678,21 @@ func testBuilderSketchWithExternC(t *testing.T, env *integrationtest.Environment
 	})
 }
 
+func testBuilderSketchWithMultilinePrototypes(t *testing.T, env *integrationtest.Environment, cli *integrationtest.ArduinoCLI) {
+	t.Run("Build", func(t *testing.T) {
+		// Build
+		_, err := tryBuild(t, env, cli, "arduino:avr:leonardo")
+		require.NoError(t, err)
+	})
+
+	t.Run("Preprocess", func(t *testing.T) {
+		// Preprocess
+		sketchPath, preprocessedSketch, err := tryPreprocess(t, env, cli, "arduino:avr:leonardo")
+		require.NoError(t, err)
+		comparePreprocessGoldenFile(t, sketchPath, preprocessedSketch)
+	})
+}
+
 type builderOutput struct {
 	CompilerOut   string `json:"compiler_out"`
 	CompilerErr   string `json:"compiler_err"`

internal/integrationtest/compile_4/testdata/SketchWithMultilinePrototypes/SketchWithMultilinePrototypes.preprocessed.txt

@@ -0,0 +1,76 @@
+#include <Arduino.h>
+#line 1 "{{QuoteCppString .sketchMainFile}}"
+#line 1 "{{QuoteCppString .sketchMainFile}}"
+void setup();
+#line 12 "{{QuoteCppString .sketchMainFile}}"
+void myctagstestfunc(int a, int b, int c, int d);
+#line 17 "{{QuoteCppString .sketchMainFile}}"
+void loop();
+#line 18 "{{QuoteCppString .sketchMainFile}}"
+void test();
+#line 21 "{{QuoteCppString .sketchMainFile}}"
+void test3();
+#line 25 "{{QuoteCppString .sketchMainFile}}"
+void test5(int a, int b, int c);
+#line 33 "{{QuoteCppString .sketchMainFile}}"
+void test7();
+#line 36 "{{QuoteCppString .sketchMainFile}}"
+void test8();
+#line 44 "{{QuoteCppString .sketchMainFile}}"
+void test9(int a, int b);
+#line 50 "{{QuoteCppString .sketchMainFile}}"
+void test10(int a, int b, int c );
+#line 1 "{{QuoteCppString .sketchMainFile}}"
+void setup() { 
+	myctagstestfunc(1,2,3,4); 
+	test();
+	test3();
+	test5(1,2,3);
+	test7();
+	test8();
+	test9(42, 42);
+	test10(0,0,0);
+}
+
+void myctagstestfunc(int a,
+int b,
+int c,
+int d) { }
+
+void loop() {}
+
+void 
+test() {}
+
+void 
+// comment
+test3() {}
+
+void
+test5(int a,
+   int b,
+   int c)
+{
+
+}
+
+void /* comment */
+test7() {}
+
+void 
+/* 
+multi 
+line 
+comment 
+*/
+test8() {}
+
+ void 
+ /* comment */
+ test9(int a, 
+    int b) {} 
+
+void test10(int a, // this 
+			int b, // doesn't 
+			int c  // work
+			) {} 

legacy/builder/test/try_build_of_problematic_sketch_test.go

@@ -29,10 +29,6 @@ import (
 
 // TODO add them in the compile_4
 
-func TestTryBuild038(t *testing.T) {
-	tryBuild(t, paths.New("sketch_with_multiline_prototypes", "sketch_with_multiline_prototypes.ino"))
-}
-
 func TestTryBuild040(t *testing.T) {
 	tryBuild(t, paths.New("sketch_with_externC_multiline", "sketch_with_externC_multiline.ino"))
 }