Merge pull request #27 from Icinga/test-Float

Test types.Float

Author: oxzi

types/float_test.go

@@ -0,0 +1,90 @@
+package types
+
+import (
+	"database/sql"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func TestFloat_MarshalJSON(t *testing.T) {
+	subtests := []struct {
+		name   string
+		input  sql.NullFloat64
+		output string
+	}{
+		{"null", sql.NullFloat64{}, `null`},
+		{"invalid", sql.NullFloat64{Float64: 42}, `null`},
+		{"zero", sql.NullFloat64{Float64: 0, Valid: true}, `0`},
+		{"negative", sql.NullFloat64{Float64: -1, Valid: true}, `-1`},
+		{"fraction", sql.NullFloat64{Float64: 0.5, Valid: true}, `0.5`},
+	}
+
+	for _, st := range subtests {
+		t.Run(st.name, func(t *testing.T) {
+			actual, err := Float{st.input}.MarshalJSON()
+
+			require.NoError(t, err)
+			require.Equal(t, st.output, string(actual))
+		})
+	}
+}
+
+func TestFloat_UnmarshalText(t *testing.T) {
+	subtests := []struct {
+		name   string
+		input  string
+		output sql.NullFloat64
+		error  bool
+	}{
+		{"empty", "", sql.NullFloat64{}, true},
+		{"too_big", "1e309", sql.NullFloat64{}, true},
+		{"zero", "0", sql.NullFloat64{Float64: 0, Valid: true}, false},
+		{"negative", "-1", sql.NullFloat64{Float64: -1, Valid: true}, false},
+		{"fraction", "0.5", sql.NullFloat64{Float64: 0.5, Valid: true}, false},
+		{"exp", "2e1", sql.NullFloat64{Float64: 20, Valid: true}, false},
+		{"too_precise", "1e-1337", sql.NullFloat64{Float64: 0, Valid: true}, false},
+	}
+
+	for _, st := range subtests {
+		t.Run(st.name, func(t *testing.T) {
+			var actual Float
+			if err := actual.UnmarshalText([]byte(st.input)); st.error {
+				require.Error(t, err)
+			} else {
+				require.NoError(t, err)
+				require.Equal(t, Float{NullFloat64: st.output}, actual)
+			}
+		})
+	}
+}
+
+func TestFloat_UnmarshalJSON(t *testing.T) {
+	subtests := []struct {
+		name   string
+		input  string
+		output sql.NullFloat64
+		error  bool
+	}{
+		{"null", `null`, sql.NullFloat64{}, false},
+		{"bool", `false`, sql.NullFloat64{}, true},
+		{"string", `"0"`, sql.NullFloat64{}, true},
+		{"too_big", `1e309`, sql.NullFloat64{}, true},
+		{"zero", `0`, sql.NullFloat64{Float64: 0, Valid: true}, false},
+		{"negative", `-1`, sql.NullFloat64{Float64: -1, Valid: true}, false},
+		{"fraction", `0.5`, sql.NullFloat64{Float64: 0.5, Valid: true}, false},
+		{"exp", `2e1`, sql.NullFloat64{Float64: 20, Valid: true}, false},
+		{"too_precise", `1e-1337`, sql.NullFloat64{Float64: 0, Valid: true}, false},
+	}
+
+	for _, st := range subtests {
+		t.Run(st.name, func(t *testing.T) {
+			var actual Float
+			if err := actual.UnmarshalJSON([]byte(st.input)); st.error {
+				require.Error(t, err)
+			} else {
+				require.NoError(t, err)
+				require.Equal(t, Float{NullFloat64: st.output}, actual)
+			}
+		})
+	}
+}