add TextLoader::get_eol_at_eof()

test/src/test_TextLoader.cc

@@ -23,6 +23,7 @@ TEST(TextLoaderTest, loading_empty_file)
     auto file = TestSupport::read_file("test/files/empty.txt");
     tl.load_buffer(&(*file)[0], file->size());
     EXPECT_EQ(0u, tl.num_lines());
+    EXPECT_EQ(true, tl.get_eol_at_eof());
 }
 
 TEST(TextLoaderTest, detects_lf_line_endings)
@@ -36,6 +37,7 @@ TEST(TextLoaderTest, detects_lf_line_endings)
     EXPECT_EQ("Hello.", line_to_string(it));
     it++;
     EXPECT_EQ("This file is in LF line ending format.", line_to_string(it));
+    EXPECT_EQ(true, tl.get_eol_at_eof());
 }
 
 TEST(TextLoaderTest, detects_cr_line_endings)
@@ -49,6 +51,7 @@ TEST(TextLoaderTest, detects_cr_line_endings)
     EXPECT_EQ("Hello.", line_to_string(it));
     it++;
     EXPECT_EQ("This file is in CR line ending format.", line_to_string(it));
+    EXPECT_EQ(true, tl.get_eol_at_eof());
 }
 
 TEST(TextLoaderTest, detects_crlf_line_endings)
@@ -62,4 +65,5 @@ TEST(TextLoaderTest, detects_crlf_line_endings)
     EXPECT_EQ("Hello.", line_to_string(it));
     it++;
     EXPECT_EQ("This file is in CRLF line ending format.", line_to_string(it));
+    EXPECT_EQ(true, tl.get_eol_at_eof());
 }