fmt: cleanup and expand tests for ternary if (#8333)

vlib/v/fmt/tests/if_keep.vv

@@ -1,20 +0,0 @@
-fn main() {
-	sprogress := if b.no_cstep {
-		'TMP1/${b.nexpected_steps:1d}'
-	} else {
-		'${b.cstep:1d}/${b.nexpected_steps:1d}'
-	}
-	b := if bar {
-		// comment
-		'some str'
-	} else {
-		'other str'
-	}
-	_ := if true {
-		Foo{}
-	} else {
-		Foo{
-			x: 5
-		}
-	}
-}

vlib/v/fmt/tests/if_single_line_keep.vv

@@ -1,4 +0,0 @@
-a, b := if true { 'a', 'b' } else { 'b', 'a' }
-_ := if false { Foo{} } else { Foo{5, 6} }
-arr := [0, 1]
-arr << if true { 2 } else { 3 }

vlib/v/fmt/tests/if_ternary_expected.vv

@@ -0,0 +1,33 @@
+fn main() {
+	// This line is too long
+	sprogress := if b.no_cstep {
+		'TMP1/${b.nexpected_steps:1d}'
+	} else {
+		'${b.cstep:1d}/${b.nexpected_steps:1d}'
+	}
+	// Normal struct inits
+	_ := if true {
+		Foo{}
+	} else {
+		Foo{
+			x: 5
+		}
+	}
+	_ := if some_cond {
+		Bar{
+			a: 'bar'
+			b: 'also bar'
+		}
+	} else {
+		Bar{}
+	}
+}
+
+fn condition_is_very_long_infix() {
+	val := if the_first_condition && this_is_required_too
+		&& (another_cond || foobar_to_exceed_the_max_len) {
+		'true'
+	} else {
+		'false'
+	}
+}

vlib/v/fmt/tests/if_ternary_input.vv

@@ -0,0 +1,13 @@
+fn main() {
+	// This line is too long
+	sprogress := if b.no_cstep { 'TMP1/${b.nexpected_steps:1d}' } else { '${b.cstep:1d}/${b.nexpected_steps:1d}' }
+	// Normal struct inits
+	_ := if true { Foo{} } else { Foo{
+		x: 5
+	} }
+	_ := if some_cond { Bar{ a: 'bar', b: 'also bar'} } else { Bar{} }
+}
+
+fn condition_is_very_long_infix() {
+	val := if the_first_condition && this_is_required_too && (another_cond || foobar_to_exceed_the_max_len) { 'true' } else { 'false' }
+}

vlib/v/fmt/tests/if_ternary_keep.vv

@@ -0,0 +1,20 @@
+fn valid_single_line() {
+	// Variable initialization
+	a, b := if true { 'a', 'b' } else { 'b', 'a' }
+	// Variable assignment
+	mut x := 'abc'
+	x = if x == 'def' { 'ghi' } else { 'def' }
+	// Array pushes
+	[0, 1] << if true { 2 } else { 3 }
+	// Empty or literal syntax struct inits
+	_ := if false { Foo{} } else { Foo{5, 6} }
+}
+
+fn requires_multiple_lines() {
+	b := if bar {
+		// with comments inside
+		'some str'
+	} else {
+		'other str'
+	}
+}