unit tests: coverage, settings

tests/trim_test.cpp

@@ -0,0 +1,36 @@
+#include <string>
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include "trim.hpp"
+
+namespace {
+    using ::testing::StrEq;
+
+    struct TrimCase {
+        const char *source;
+        const char *expected;
+    };
+
+    class TrimTest : public ::testing::TestWithParam<TrimCase> {
+    };
+
+    TEST_P(TrimTest, ReturnsTrimmedString) {
+        const auto &param = GetParam();
+        std::string_view result = wavefront::trim(param.source);
+        EXPECT_THAT(std::string(result), StrEq(param.expected));
+    }
+
+    INSTANTIATE_TEST_SUITE_P(
+        TrimCases,
+        TrimTest,
+        ::testing::Values(
+            TrimCase{"   hello world   ", "hello world"},
+            TrimCase{"\t\n  spaced\t\n", "spaced"},
+            TrimCase{"trimmed", "trimmed"},
+            TrimCase{"   ", ""},
+            TrimCase{"", ""}
+        )
+    );
+}