From f30d40ec44e7bb4dda5cdd75e9761d67288af4a7 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sat, 25 Sep 2021 15:14:45 +0200
Subject: Add unit-test for source language deduction.

---
 src/task_cc.h            |  2 +-
 test/ctor.cc             | 14 +++++++++
 test/source_type_test.cc | 77 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 92 insertions(+), 1 deletion(-)
 create mode 100644 test/source_type_test.cc

diff --git a/src/task_cc.h b/src/task_cc.h
index 67d8d45..f5ae95d 100644
--- a/src/task_cc.h
+++ b/src/task_cc.h
@@ -33,7 +33,7 @@ public:
 
 	std::string toJSON() const override;
 
-private:
+protected:
 	std::vector<std::string> flags() const;
 	std::string flagsString() const;
 	std::vector<std::string> getCompilerArgs() const;
diff --git a/test/ctor.cc b/test/ctor.cc
index 8080d61..3d05e7f 100644
--- a/test/ctor.cc
+++ b/test/ctor.cc
@@ -37,6 +37,20 @@ BuildConfigurations ctorTestConfigs()
 				"-DOUTPUT=\"tasks\"",
 			},
 		},
+		{
+			.type = TargetType::UnitTest,
+			.target = "source_type_test",
+			.sources = {
+				"source_type_test.cc",
+				"uunit/uunit.cc",
+			},
+			.depends = {"libctor.a"},
+			.cxxflags = {
+				"-std=c++17", "-O3", "-s", "-Wall", "-Werror",
+				"-I../src", "-Iuunit",
+				"-DOUTPUT=\"source_type\"",
+			},
+		},
 	};
 }
 }
diff --git a/test/source_type_test.cc b/test/source_type_test.cc
new file mode 100644
index 0000000..2da1ac4
--- /dev/null
+++ b/test/source_type_test.cc
@@ -0,0 +1,77 @@
+#include <uunit.h>
+
+#include <libctor.h>
+#include <task_cc.h>
+#include <settings.h>
+
+std::ostream& operator<<(std::ostream& stream, const Language& lang)
+{
+	switch(lang)
+	{
+	case Language::Auto:
+		stream << "Language::Auto";
+		break;
+	case Language::C:
+		stream << "Language::C";
+		break;
+	case Language::Cpp:
+		stream << "Language::Cpp";
+		break;
+	case Language::Asm:
+		stream << "Language::Asm";
+		break;
+	}
+
+	return stream;
+}
+class TestableTaskCC
+	: public TaskCC
+{
+public:
+	TestableTaskCC(const Source& source)
+		: TaskCC({}, {}, {}, source)
+	{}
+
+	Language language() const
+	{
+		return source_language;
+	}
+};
+
+class SourceTypeTest
+	: public uUnit
+{
+public:
+	SourceTypeTest()
+	{
+		uTEST(SourceTypeTest::test);
+	}
+
+	void test()
+	{
+		{ // c++
+			TestableTaskCC task("hello.cc");
+			uASSERT_EQUAL(Language::Cpp, task.language());
+		}
+
+		{ // c
+			TestableTaskCC task("hello.c");
+			uASSERT_EQUAL(Language::C, task.language());
+		}
+
+		{ // asm
+			TestableTaskCC task("hello.s");
+			uASSERT_EQUAL(Language::Asm, task.language());
+		}
+
+		{ // custom/explicit language
+			TestableTaskCC task( {"hello.foo", Language::Asm} );
+			uASSERT_EQUAL(Language::Asm, task.language());
+		}
+
+		// Note: Failure state will result in exit(1) so cannot be tested
+	}
+};
+
+// Registers the fixture into the 'registry'
+static SourceTypeTest test;
-- 
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