add location unit tests

internal/location/location_test.go

@@ -0,0 +1,62 @@
+package location
+
+import (
+	"testing"
+
+	"github.com/maxatome/go-testdeep/internal/test"
+)
+
+func TestNew(t *testing.T) {
+	for _, curTest := range []struct {
+		callDepth int
+		expectOK  bool
+	}{
+		{callDepth: 0, expectOK: true},
+		{callDepth: 1, expectOK: true},
+		{callDepth: 100, expectOK: false},
+	} {
+		loc, ok := New(curTest.callDepth)
+		test.EqualBool(t, ok, curTest.expectOK, "callDepth=%d", curTest.callDepth)
+		if ok {
+			test.IsTrue(t, loc.File != "", "File should not be empty for callDepth=%d", curTest.callDepth)
+			test.IsTrue(t, loc.Func != "", "Func should not be empty for callDepth=%d", curTest.callDepth)
+			test.IsTrue(t, loc.Line > 0, "Line should be >0 for callDepth=%d", curTest.callDepth)
+		}
+	}
+}
+
+func TestIsInitialized(t *testing.T) {
+	for _, curTest := range []struct {
+		loc      Location
+		expected bool
+	}{
+		{loc: Location{}, expected: false},
+		{loc: Location{File: ""}, expected: false},
+		{loc: Location{File: "test.go"}, expected: true},
+		{loc: Location{File: "test.go", Func: "Test", Line: 10}, expected: true},
+	} {
+		test.EqualBool(t, curTest.loc.IsInitialized(), curTest.expected, "loc=%+v", curTest.loc)
+	}
+}
+
+func TestString(t *testing.T) {
+	for _, curTest := range []struct {
+		loc      Location
+		expected string
+	}{
+		{
+			loc:      Location{File: "test.go", Func: "TestFunc", Line: 10},
+			expected: "TestFunc at test.go:10",
+		},
+		{
+			loc:      Location{File: "main.go", Func: "main", Line: 5, Inside: "inside something "},
+			expected: "main inside something at main.go:5",
+		},
+		{
+			loc:      Location{File: "pkg/utils.go", Func: "utils.Helper", Line: 42, Inside: "in map "},
+			expected: "utils.Helper in map at pkg/utils.go:42",
+		},
+	} {
+		test.EqualStr(t, curTest.loc.String(), curTest.expected, "loc=%+v", curTest.loc)
+	}
+}